80_FR_45599 80 FR 45453 - Airworthiness Directives; The Boeing Company Airplanes

80 FR 45453 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 80, Issue 146 (July 30, 2015)

Page Range45453-45457
FR Document2015-18559

We propose to supersede Airworthiness Directive (AD) 2012-17- 13, which applies to certain The Boeing Company Model 707 airplanes, and Model 720 and 720B series airplanes. For certain airplanes, AD 2012-17-13 required using redefined flight cycle counts; determining the type of material of the horizontal stabilizer, rear spar, and upper and lower chords on the inboard and outboard ends of the rear spar; repetitively inspecting for cracking of the horizontal stabilizer components; and repairing or replacing the chord, or modifying chord segments made of 7079 aluminum, if necessary. For all airplanes, AD 2012-17-13 required inspecting certain structurally significant items, and repairing discrepancies if necessary. Since we issued AD 2012-17- 13, we have determined that all chord segments made of 7079 aluminum must be replaced with new, improved chord segments made of 7075 aluminum. This proposed AD would add a requirement to replace all chord segments made of 7079 aluminum with new, improved chord segments made of 7075 aluminum. We are proposing this AD to detect and correct stress corrosion and potential early fatigue cracking in the horizontal stabilizer, which could result in reduced structural integrity of the horizontal stabilizer.

Federal Register, Volume 80 Issue 146 (Thursday, July 30, 2015)
[Federal Register Volume 80, Number 146 (Thursday, July 30, 2015)]
[Proposed Rules]
[Pages 45453-45457]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2015-18559]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-2965; Directorate Identifier 2014-NM-227-AD]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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SUMMARY: We propose to supersede Airworthiness Directive (AD) 2012-17-
13, which applies to certain The Boeing Company Model 707 airplanes, 
and Model 720 and 720B series airplanes. For certain airplanes, AD 
2012-17-13 required using redefined flight cycle counts; determining 
the type of material of the horizontal stabilizer, rear spar, and upper 
and lower chords on the inboard and outboard ends of the rear spar; 
repetitively inspecting for cracking of the horizontal stabilizer 
components; and repairing or replacing the chord, or modifying chord 
segments made of 7079 aluminum, if necessary. For all airplanes, AD 
2012-17-13 required inspecting certain structurally significant items, 
and repairing discrepancies if necessary. Since we issued AD 2012-17-
13, we have determined that all chord segments made of 7079 aluminum 
must be replaced with new, improved chord segments made of 7075 
aluminum. This proposed AD would add a requirement to replace all chord 
segments made of 7079 aluminum with new, improved chord segments made 
of 7075 aluminum. We are proposing this AD to detect and correct stress 
corrosion and potential early fatigue cracking in the horizontal 
stabilizer, which could result in reduced structural integrity of the 
horizontal stabilizer.

DATES: We must receive comments on this proposed AD by September 14, 
2015.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.

[[Page 45454]]

     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
3855 Lakewood Boulevard, MC D800-0019, Long Beach, CA 90846-0001; 
telephone 206-544-5000, extension 2; fax 206-766-5683; Internet https://www.myboeingfleet.com. You may view this referenced service 
information at the FAA, Transport Airplane Directorate, 1601 Lind 
Avenue SW., Renton, WA. For information on the availability of this 
material at the FAA, call 425-227-1221.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-
2965; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will 
be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Chandra Ramdoss, Aerospace Engineer, 
Airframe Branch, ANM-120L, FAA, Los Angeles Aircraft Certification 
Office (ACO), 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 
562-627-5239; fax: 562-627-5210; email: [email protected].

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2015-2965; 
Directorate Identifier 2014-NM-227-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    On August 24, 2012, we issued AD 2012-17-13, Amendment 39-17176 (77 
FR 55681, September 11, 2012), for certain The Boeing Company Model 707 
airplanes, and Model 720 and 720B series airplanes. For certain 
airplanes, AD 2012-17-13 required using redefined flight cycle counts, 
determining the type of material of the horizontal stabilizer, rear 
spar, and upper and lower chords on the inboard and outboard ends of 
the rear spar; repetitively inspecting for cracking of the horizontal 
stabilizer components; and repairing or replacing the chord, or 
modifying chord segments made from 7079 aluminum, if necessary. For all 
airplanes, AD 2012-17-13 required inspecting certain structurally 
significant items, and repairing discrepancies if necessary. AD 2012-
17-13 resulted from reports of stress corrosion cracking in the chord 
segments made from 7079 aluminum in the horizontal stabilizer rear 
spar, and potential early fatigue cracking in the chord segments made 
from 7075 aluminum. We issued AD 2012-17-13 to detect and correct 
stress corrosion and potential early fatigue cracking in the horizontal 
stabilizer, which could compromise the structural integrity of the 
stabilizer.

Actions Since AD 2012-17-13, Amendment 39-17176 (77 FR 55681, September 
11, 2012), Was Issued

    The preamble to AD 2012-17-13, Amendment 39-17176 (77 FR 55681, 
September 11, 2012), explained that we considered the requirements 
``interim action'' and were considering further rulemaking. We now have 
determined that it is necessary to initiate further rulemaking to 
continue to require the repetitive inspections required by AD 2012-17-
13, and to add a requirement for replacement of all chord segments made 
of 7079 aluminum with new chord segments made of 7075 aluminum. This 
proposed AD follows from that determination.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing 707 Alert Service Bulletin A3515, Revision 1, 
dated October 10, 2014. The service information describes procedures 
for incorporating a new cycle counting procedure, determining the 
material for the horizontal stabilizer rear spar chord segment, 
inspecting for stress corrosion cracking and fatigue cracking, repair, 
and replacing all chord segments made of 7079 aluminum with new, 
improved chord segments made of 7075 aluminum. This service information 
is reasonably available because the interested parties have access to 
it through their normal course of business or by the means identified 
in the ADDRESSES section of this NPRM.

FAA's Determination

    We are proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of these same type 
designs.

Proposed AD Requirements

    This proposed AD would retain all requirements of AD 2012-17-13, 
Amendment 39-17176 (77 FR 55681, September 11, 2012). This proposed AD 
would also add a requirement to replace all chord segments made of 7079 
aluminum with new chord segments made of 7075 aluminum. This 
replacement would not terminate the repetitive inspections required by 
AD 2012-17-13.

Costs of Compliance

    We estimate that this proposed AD affects 10 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                             Table--Estimated costs
----------------------------------------------------------------------------------------------------------------
                                                                            Cost per
            Action                   Work hours             Parts           product             Fleet cost
----------------------------------------------------------------------------------------------------------------
Retained inspections from AD   Up to 32 work-hours X  $0..............  Up to $2,720     Up to $27,200 per
 2012-17-13, Amendment 39-      $85 per hour = up to                     per inspection   inspection cycle
 17176 (77 FR 55681,            $2,720 per                               cycle.
 September 11, 2012).           inspection cycle.

[[Page 45455]]

 
Replacement [new action].....  500 work-hours X $85   Up to $228,000    Up to            Up to $23,225,000 \2\
                                per work-hour =        per chord.        $2,322,500 (up
                                $42,500.                                 to 10 chords
                                                                         per airplane)
                                                                         \1\.
----------------------------------------------------------------------------------------------------------------
\1\ The parts for the modification could cost up to $2.28 million per airplane, depending on whether only one
  operator is ordering the parts or multiple operators. The parts cost will go down if multiple operators order
  parts at the same time.
\2\ The number of chords which must be replaced on each specific airplane varies.

Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, Section 106, describes the 
authority of the FAA Administrator. Subtitle VII, Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
Subtitle VII, Part A, Subpart III, Section 44701, ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We have determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would not 
have a substantial direct effect on the States, on the relationship 
between the national Government and the States, or on the distribution 
of power and responsibilities among the various levels of government.
    For the reasons discussed above, I certify that the proposed 
regulation:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979),
    (3) Will not affect intrastate aviation in Alaska, and
    (4) Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority:  49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by removing Airworthiness Directive (AD) 
2012-17-13, Amendment 39-17176 (77 FR 55681, September 11, 2012), and 
adding the following new AD:

The Boeing Company: Docket No. FAA-2015-2965; Directorate Identifier 
2014-NM-227-AD.

(a) Comments Due Date

    The FAA must receive comments on this AD action by September 14, 
2015.

(b) Affected ADs

    This AD replaces AD 2012-17-13, Amendment 39-17176 (77 FR 55681, 
September 11, 2012).

(c) Applicability

    This AD applies to The Boeing Company airplanes, certificated in 
any category; identified in paragraphs (c)(1) and (c)(2) of this AD.
    (1) Model 707 airplanes identified in Boeing 707 Alert Service 
Bulletin A3515, Revision 1, dated October 10, 2014.
    (2) Model 720 and 720B series airplanes identified in Boeing 707 
Alert Service Bulletin A3516, dated April 4, 2008.

(d) Subject

    Air Transport Association (ATA) of America Code 55, Stabilizers.

(e) Unsafe Condition

    This AD was prompted by a determination that all chord segments 
made of 7079 aluminum must be replaced with new, improved chord 
segments made of 7075 aluminum. We are issuing this AD to detect and 
correct stress corrosion and potential early fatigue cracking in the 
horizontal stabilizer, which could result in reduced structural 
integrity of the horizontal stabilizer.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Retained Flight Cycle Counting Procedure, With Revised Service 
Information

    This paragraph restates the requirements of paragraph (g) of AD 
2012-17-13, Amendment 39-17176 (77 FR 55681, September 11, 2012), 
with revised service information. Flight cycles, as used in this AD, 
must be counted as defined in the service information identified in 
paragraph (g)(1), (g)(2), or (g)(3) of this AD.
    (1) Boeing 707 Alert Service Bulletin A3515, dated December 19, 
2007 (for Model airplanes).
    (2) Boeing 707 Alert Service Bulletin A3515, Revision 1, dated 
October 10, 2014 (for Model airplanes).
    (3) Boeing 707 Alert Service Bulletin A3516, dated April 4, 2008 
(for Model airplanes, and Model 720 and 720B series airplanes).

(h) Retained Determination of Material of the Components of the 
Horizontal Stabilizer, With Revised Service Information

    This paragraph restates the actions required by paragraph (h) of 
AD 2012-17-13, Amendment 39-17176 (77 FR 55681, September 11, 2012), 
with revised service information. For airplanes identified in Boeing 
707 Alert Service Bulletin A3515, dated December 19, 2007, or Boeing 
707 Alert Service Bulletin A3515, Revision 1, dated October 10, 
2014: At the earlier of the times specified in paragraphs (h)(1) and 
(h)(2) of this AD, determine the type of material of the horizontal 
stabilizer, rear spar, upper chords, and lower chords on the inboard 
and outboard ends of the rear spar, in accordance with Part 2 of the 
Accomplishment Instructions of Boeing 707 Alert Service Bulletin 
A3515, dated December 19, 2007, or Boeing 707 Alert Service Bulletin 
A3515, Revision 1, dated October 10, 2014.
    (1) Within 180 days after October 16, 2012 (the effective date 
of AD 2012-17-13, Amendment 39-17176 (77 FR 55681, September 11, 
2012)).
    (2) Before further flight after any horizontal stabilizer is 
replaced after October 16, 2012.

(i) Retained Repetitive Inspections of 7075 Aluminum Components, With 
Revised Service Information

    This paragraph restates the actions required by paragraph (i) of 
AD 2012-17-13, Amendment 39-17176 (77 FR 55681, September 11, 2012), 
with revised service

[[Page 45456]]

information. For airplanes with horizontal stabilizer components 
made from 7075 aluminum, as determined during the inspection 
required by paragraph (h) of this AD: Within 180 days after October 
16, 2012 (the effective date of AD 2012-17-13), and before further 
flight after any replacement of the horizontal stabilizer, do a 
special detailed inspection for cracking of the upper chord on the 
inboard end of the rear spar on both the left and right side 
horizontal stabilizers, from stabilizer station -13.179 to 92.55, in 
accordance with Part 3 of the Accomplishment Instructions of Boeing 
707 Alert Service Bulletin A3515, dated December 19, 2007, or Boeing 
707 Alert Service Bulletin A3515, Revision 1, dated October 10, 
2014. Repeat the inspections thereafter at intervals not to exceed 
500 flight cycles, and before further flight after any replacement 
of the horizontal stabilizer, except as provided by paragraph (j) of 
this AD. If any cracking is found, before further flight, either 
repair the cracking in accordance with Part 3 of the Accomplishment 
Instructions of Boeing 707 Alert Service Bulletin A3515, dated 
December 19, 2007, or Boeing 707 Alert Service Bulletin A3515, 
Revision 1, dated October 10, 2014, except as required by paragraph 
(n) of this AD; or replace the chord with a new chord, in accordance 
with Part 6 of the Accomplishment Instructions of Boeing 707 Alert 
Service Bulletin A3515, dated December 19, 2007, or Boeing 707 Alert 
Service Bulletin A3515, Revision 1, dated October 10, 2014.

(j) Retained Repetitive Inspections on Airplanes With Replaced Chord, 
With Revised Service Information

    This paragraph restates the actions required by paragraph (j) of 
AD 2012-17-13, Amendment 39-17176 (77 FR 55681, September 11, 2012), 
with revised service information. For airplanes on which the chord 
is replaced with a new chord in accordance with Part 6 of the 
Accomplishment Instructions of Boeing 707 Alert Service Bulletin 
A3515, dated December 19, 2007, or Boeing 707 Alert Service Bulletin 
A3515, Revision 1, dated October 10, 2014: Within 4,000 flight 
cycles after the chord replacement, do the inspections required by 
paragraph (i) of this AD, and repeat the inspections thereafter at 
the times specified in paragraph (i) of this AD.

(k) Retained Repetitive Inspections of 7079 Aluminum Components, With 
Revised Service Information

    This paragraph restates the actions required by paragraph (k) of 
AD 2012-17-13, Amendment 39-17176 (77 FR 55681, September 11, 2012), 
with revised service information. For airplanes with horizontal 
stabilizers that have components of the chords of the rear spar made 
from 7079 aluminum, as determined during the inspection required by 
paragraph (h) of this AD: Within 180 days after October 16, 2012 
(the effective date of AD 2012-17-13), do the actions required by 
paragraphs (k)(1), (k)(2), and (k)(3) of this AD, and repeat those 
actions at the applicable intervals specified in paragraphs (k)(1), 
(k)(2), and (k)(3) of this AD.
    (1) Do a special detailed inspection for cracking of the upper 
chord of the inboard side of the rear spar of both the -left and 
right-side horizontal stabilizers from stabilizer station -13.179 to 
92.55, in accordance with Part 3 of the Accomplishment Instructions 
of Boeing 707 Alert Service Bulletin A3515, dated December 19, 2007, 
or Boeing 707 Alert Service Bulletin A3515, Revision 1, dated 
October 10, 2014. Repeat the inspection thereafter at intervals not 
to exceed 250 flight cycles or 180 days, whichever occurs first. If 
any cracking is found during any inspection required by this 
paragraph, before further flight, either repair the cracking, in 
accordance with Part 3 of the Accomplishment Instructions of Boeing 
707 Alert Service Bulletin A3515, dated December 19, 2007, or Boeing 
707 Alert Service Bulletin A3515, Revision 1, dated October 10, 
2014, except as required by paragraph (n) of this AD; or replace the 
chord with a new chord, in accordance with Part 6 of the 
Accomplishment Instructions of Boeing 707 Alert Service Bulletin 
A3515, dated December 19, 2007, or Boeing 707 Alert Service Bulletin 
A3515, Revision 1, dated October 10, 2014.
    (2) Do a high frequency eddy current inspection for cracking of 
the web flanges of the upper and lower chords of the rear spar in 
the left and right side horizontal stabilizers from stabilizer 
stations 92.55 to 272.55, in accordance with Part 4 of the 
Accomplishment Instructions of Boeing 707 Alert Service Bulletin 
A3515, dated December 19, 2007, or Boeing 707 Alert Service Bulletin 
A3515, Revision 1, dated October 10, 2014. Repeat the inspection 
thereafter at intervals not to exceed 1,000 flight cycles or 180 
days, whichever occurs first. If any cracking is found during any 
inspection required by this paragraph, before further flight, do the 
actions specified in paragraph (k)(2)(i) or (k)(2)(ii) of this AD.
    (i) Determine whether the cracking meets the limits specified in 
Part 4 of the Accomplishment Instructions of Boeing 707 Alert 
Service Bulletin A3515, dated December 19, 2007, or Boeing 707 Alert 
Service Bulletin A3515, Revision 1, dated October 10, 2014, and 
whether a previous repair has been done; determine if all 7079 upper 
and lower chord segments installed on the horizontal stabilizer have 
had the Part II, Group 1, Preventative Modification specified in 
Boeing Service Bulletin 3356 done; and do all applicable repairs and 
modifications, in accordance with the Accomplishment Instructions of 
Boeing 707 Alert Service Bulletin A3515, dated December 19, 2007, or 
Boeing 707 Alert Service Bulletin A3515, Revision 1, dated October 
10, 2014. Do the actions required by this paragraph in accordance 
with Part 4 of the Accomplishment Instructions of Boeing 707 Alert 
Service Bulletin A3515, dated December 19, 2007, or Boeing 707 Alert 
Service Bulletin A3515, Revision 1, dated October 10, 2014, except 
as required by paragraph (n) of this AD. Do all applicable repairs 
and modifications before further flight.
    (ii) Replace the chord with a new chord, in accordance with Part 
6 of the Accomplishment Instructions of Boeing 707 Alert Service 
Bulletin A3515, dated December 19, 2007, or Boeing 707 Alert Service 
Bulletin A3515, Revision 1, dated October 10, 2014.
    (3) Do low frequency eddy current (LFEC) inspections for 
cracking of the forward skin flanges of the upper and lower chords 
of the rear spar in the left and right side horizontal stabilizers 
from stabilizer stations -13.179 to 272.55 (for lower chords) and 
92.55 to 272.55 (for upper chords), in accordance with Part 5 of the 
Accomplishment Instructions of Boeing 707 Alert Service Bulletin 
A3515, dated December 19, 2007, or Boeing 707 Alert Service Bulletin 
A3515, Revision 1, dated October 10, 2014. Repeat the inspections 
thereafter at intervals not to exceed 1,000 flight cycles or 180 
days, whichever occurs first. If any cracking is found during any 
inspection required by this paragraph, before further flight, do the 
actions specified in either paragraph (k)(3)(i) or paragraph 
(k)(3)(ii) of this AD.
    (i) Repair any cracking, determine whether all 7079 upper and 
lower chord segments installed on the horizontal stabilizer have had 
the Part II--Preventative Modification specified in Boeing Service 
Bulletin 3381 done, and do all applicable modifications, in 
accordance with the Accomplishment Instructions of Boeing 707 Alert 
Service Bulletin A3515, dated December 19, 2007, or Boeing 707 Alert 
Service Bulletin A3515, Revision 1, dated October 10, 2014. Do the 
actions required by this paragraph in accordance with Part 5 of the 
Accomplishment Instructions of Boeing 707 Alert Service Bulletin 
A3515, dated December 19, 2007, or Boeing 707 Alert Service Bulletin 
A3515, Revision 1, dated October 10, 2014, except as required by 
paragraph (n) of this AD. Do all applicable modifications before 
further flight.
    (ii) Replace the chord with a new chord, in accordance with Part 
6 of the Accomplishment Instructions of Boeing 707 Alert Service 
Bulletin A3515, dated December 19, 2007; or Boeing 707 Alert Service 
Bulletin A3515, Revision 1, dated October 10, 2014.

(l) Retained Modification/Chord Replacement, With Revised Service 
Information

    This paragraph restates the actions required by paragraph (l) of 
AD 2012-17-13, Amendment 39-17176 (77 FR 55681, September 11, 2012), 
with revised service information. For airplanes identified in Boeing 
707 Alert Service Bulletin A3515, dated December 19, 2007, or Boeing 
707 Alert Service Bulletin A3515, Revision 1, dated October 10, 
2014, with horizontal stabilizers that have rear spar chord 
components made from 7079 aluminum and have not had embodied the 
modification of Part II of Boeing Service Bulletin 3381, dated July 
25, 1980, or Boeing Service Bulletin 3381, Revision 1, dated July 
31, 1981: Before further flight after determining the type of 
material in accordance with paragraph (h) of this AD, modify all 
7079 chord segments installed on the horizontal stabilizer, in

[[Page 45457]]

accordance with Part 5 of the Accomplishment Instructions of Boeing 
707 Alert Service Bulletin A3515, dated December 19, 2007, or Boeing 
707 Alert Service Bulletin A3515, Revision 1, dated October 10, 
2014; or replace the chord, in accordance with Part 6 of the 
Accomplishment Instructions of Boeing 707 Alert Service Bulletin 
A3515, dated December 19, 2007, or Boeing 707 Alert Service Bulletin 
A3515, Revision 1, dated October 10, 2014.

(m) Retained Supplemental Structural Inspection Document Inspections

    This paragraph restates the actions required by paragraph (m) of 
AD 2012-17-13, Amendment 39-17176 (77 FR 55681, September 11, 2012). 
For all airplanes: Within 180 days or 1,000 flight cycles after 
October 16, 2012 (the effective date of AD 2012-17-13), whichever 
occurs first, do the inspections of the applicable structurally 
significant items specified in and in accordance with the 
Accomplishment Instructions of Boeing 707 Alert Service Bulletin 
A3516, dated April 4, 2008. If any cracking is found, before further 
flight, repair in accordance with the procedures specified in 
paragraph (r) of this AD. The inspections required by AD 85-12-01 
R1, Amendment 39-5439 (51 FR 36002, October 8, 1986), are still 
required, except, as of October 16, 2012 (the effective date of AD 
2012-17-13), the flight-cycle interval for the repetitive 
inspections specified in paragraph 1.E., ``Compliance,'' of Boeing 
707 Alert Service Bulletin A3516, dated April 4, 2008, must be 
counted in accordance with the requirements of paragraph (g) of this 
AD.

(n) Retained Exception to Certain Service Information: Contacting FAA 
for Crack Repair

    This paragraph restates the actions required by paragraph (n) of 
AD 2012-17-13, Amendment 39-17176 (77 FR 55681, September 11, 2012), 
with revised service information. If any cracking is found during 
any inspection required by this AD, and Boeing 707 Alert Service 
Bulletin A3515, dated December 19, 2007, or Boeing 707 Alert Service 
Bulletin A3515, Revision 1, dated October 10, 2014, specifies to 
contact Boeing for appropriate action: Before further flight, repair 
the cracking using a method approved in accordance with the 
procedures specified in paragraph (r) of this AD.

(o) Retained Exception to Certain Service Information: Nondestructive 
Test Compliance Procedures

    This paragraph restates the requirements of paragraph (o) of AD 
2012-17-13, Amendment 39-17176 (77 FR 55681, September 11, 2012), 
with revised service information. Where Boeing 707 Alert Service 
Bulletin A3515, dated December 19, 2007, or Boeing 707 Alert Service 
Bulletin A3515, Revision 1, dated October 10, 2014, specifies that 
operators ``refer to'' nondestructive test (NDT) procedures, the 
procedures must be done in accordance with the service information 
identified in paragraphs (o)(1), (o)(2), and (o)(3) of this AD, as 
applicable.
    (1) Figure 20, ``Electrical Conductivity Measurement for 
Aluminum,'' of Subject 51-00-00, ``Structures-General,'' of Part 6--
Eddy Current, of the Boeing 707/720 Nondestructive Test Manual, 
Document D6-48023, Revision 118, dated July 15, 2011.
    (2) Subject 55-10-07, ``Horizontal Stabilizer,'' of Part 6--Eddy 
Current, of the Boeing 707/720 Nondestructive Test Manual, Document 
D6-48023, Revision 118, dated July 15, 2011.
    (3) Subject 51-01-00, ``Orientation and Preparation for 
Testing'' of Part 1--General, of the Boeing 707/720 Nondestructive 
Test Manual, Document D6-48023, Revision 118, dated July 15, 2011.

(p) Retained Parts Installation Prohibition

    As of October 16, 2012 (the effective date of AD 2012-17-13, 
Amendment 39-17176 (77 FR 55681, September 11, 2012)), no person may 
install any horizontal stabilizer assembly with any chord segment 
having a part number other than that identified in paragraph 2.C.2. 
of Boeing 707 Alert Service Bulletin A3515, dated December 19, 2007, 
or Boeing 707 Alert Service Bulletin A3515, Revision 1, dated 
October 10, 2014, on any airplane.

(q) New Replacement of 7079 Aluminum Components

    Within 48 months after the effective date of this AD: Replace 
all 7079 aluminum chord segments of the upper and lower chords 
installed on the horizontal stabilizer with 7075 aluminum chord 
segments, in accordance with Part 6 of the Accomplishment 
Instructions of Boeing 707 Alert Service Bulletin A3515, Revision 1, 
dated October 10, 2014. Within 4,000 flight cycles after 
accomplishing the replacements required by this paragraph, repeat 
the inspection required by paragraph (j) of this AD; and repeat the 
inspection thereafter at intervals not to exceed 500 flight cycles, 
and before further flight after any replacement of the horizontal 
stabilizer.

(r) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Los Angeles Aircraft Certification Office 
(ACO), FAA, has the authority to approve AMOCs for this AD, if 
requested using the procedures found in 14 CFR 39.19. In accordance 
with 14 CFR 39.19, send your request to your principal inspector or 
local Flight Standards District Office, as appropriate. If sending 
information directly to the manager of the ACO, send it to the 
attention of the person identified in paragraph (s)(1) of this AD. 
Information may be emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair required by this AD if it is approved by the 
Boeing Commercial Airplanes Organization Designation Authorization 
(ODA) that has been authorized by the Manager, Los Angeles ACO, to 
make those findings. For a repair method to be approved, the repair 
must meet the certification basis of the airplane, and the approval 
must specifically refer to this AD.
    (4) AMOCs approved for AD 2012-17-13, Amendment 39-17176 (77 FR 
55681, September 11, 2012), are approved as AMOCs for the 
corresponding provisions of this AD.

(s) Related Information

    (1) For more information about this AD, contact Chandra Ramdoss, 
Aerospace Engineer, Airframe Branch, ANM-120L, FAA, Los Angeles 
Aircraft Certification Office (ACO), 3960 Paramount Boulevard, 
Lakewood, CA 90712-4137; phone: 562-627-5239; fax: 562-627-5210; 
email: [email protected].
    (2) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
3855 Lakewood Boulevard, MC D800-0019, Long Beach, CA 90846-0001; 
telephone 206-544-5000, extension 2; fax 206-766-5683; Internet 
https://www.myboeingfleet.com. You may view this referenced service 
information at the FAA, Transport Airplane Directorate, 1601 Lind 
Avenue SW., Renton, WA. For information on the availability of this 
material at the FAA, call 425-227-1221.

    Issued in Renton, Washington, on July 16, 2015.
Suzanne Masterson,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.

[FR Doc. 2015-18559 Filed 7-29-15; 8:45 am]
 BILLING CODE 4910-13-P



                                                                        Federal Register / Vol. 80, No. 146 / Thursday, July 30, 2015 / Proposed Rules                                          45453

                                                  • Email: ConventionalCooking                          proposed rulemaking (NOPR) and                        DEPARTMENT OF TRANSPORTATION
                                               Products2014STD0005@ee.doe.gov.                          public meeting in the Federal Register
                                               Include the docket number EERE–2014–                     that proposed new and amended energy                  Federal Aviation Administration
                                               BT–STD–0005 in the subject line of the                   conservation standards for residential
                                               message.                                                 conventional ovens. 80 FR 33030. The                  14 CFR Part 39
                                                  • Mail: Ms. Brenda Edwards, U.S.                      NOPR requested comment from the                       [Docket No. FAA–2015–2965; Directorate
                                               Department of Energy, Building                           public on the proposed standards,                     Identifier 2014–NM–227–AD]
                                               Technologies Program, Mailstop EE–5B,                    associated analyses, and results, and
                                               Notice of Proposed Rulemaking for                                                                              RIN 2120–AA64
                                                                                                        provided for the written submission of
                                               Energy Conservation Standards for                        comments by August 10, 2015. The                      Airworthiness Directives; The Boeing
                                               Residential Conventional Ovens, Docket                   Association of Home Appliance                         Company Airplanes
                                               No. EERE–2014–BT–STD–0014, 1000
                                                                                                        Manufacturers (AHAM) requested that
                                               Independence Avenue SW.,                                                                                       AGENCY: Federal Aviation
                                                                                                        DOE extend the comment period by 60
                                               Washington, DC 20585–0121. If                                                                                  Administration (FAA), DOT.
                                               possible, please submit all items on a                   days so that manufacturers can obtain
                                                                                                                                                              ACTION: Notice of proposed rulemaking
                                               CD. It is not necessary to include                       sufficient data to fully analyze DOE’s
                                                                                                        proposed rule according to the                        (NPRM).
                                               printed copies.
                                                  • Hand Delivery/Courier: Ms. Brenda                   conventional oven test procedure final                SUMMARY:   We propose to supersede
                                               Edwards, U.S. Department of Energy,                      rule that was published on July 2, 2015.              Airworthiness Directive (AD) 2012–17–
                                               Building Technologies Program, 950                       80 FR 37954. Because there are                        13, which applies to certain The Boeing
                                               L’Enfant Plaza SW., Suite 600,                           currently no performance based energy                 Company Model 707 airplanes, and
                                               Washington, DC 20024. Telephone (202)                    conservation standards, AHAM noted                    Model 720 and 720B series airplanes.
                                               586–2945. If possible, please submit all                 that manufacturers do not conduct                     For certain airplanes, AD 2012–17–13
                                               items on a CD, in which case it is not                   regular energy tests on conventional                  required using redefined flight cycle
                                               necessary to include printed copies.                     ovens. AHAM further stated that by                    counts; determining the type of material
                                                  Instructions: All submissions received                allowing additional time for                          of the horizontal stabilizer, rear spar,
                                               must include the agency name and                         manufacturers (and other stakeholders                 and upper and lower chords on the
                                               docket number for this rulemaking. No                    who wish to conduct testing) to test                  inboard and outboard ends of the rear
                                               telefacsimiles (faxes) will be accepted.                 their products, manufacturers will be                 spar; repetitively inspecting for cracking
                                                  Docket: The docket is available for                   able to provide key data to support                   of the horizontal stabilizer components;
                                               review at www.regulations.gov,                           DOE’s analysis.                                       and repairing or replacing the chord, or
                                               including Federal Register notices,                                                                            modifying chord segments made of 7079
                                               comments, and other supporting                              Based on AHAM’s request, DOE                       aluminum, if necessary. For all
                                               documents/materials. All documents in                    determines that a 30 day extension of                 airplanes, AD 2012–17–13 required
                                               the docket are listed in the                             the public comment period is                          inspecting certain structurally
                                               www.regulations.gov index. However,                      appropriate to allow interested parties               significant items, and repairing
                                               not all documents listed in the index                    additional time to submit comments.                   discrepancies if necessary. Since we
                                               may be publicly available, such as                       DOE notes that it issued and made                     issued AD 2012–17–13, we have
                                               information that is exempt from public                   available a pre-publication version of                determined that all chord segments
                                               disclosure.                                              the conventional oven test procedure                  made of 7079 aluminum must be
                                                  A link to the docket Web page can be                  final rule on June 9, 2015. Based on                  replaced with new, improved chord
                                               found at: http://www.regulations.gov/                    DOE’s testing experience, extending the               segments made of 7075 aluminum. This
                                               #!documentDetail;D=EERE-2014-BT-                         comment period by 30 days for a 90 day                proposed AD would add a requirement
                                               STD-0005-0014. This Web page contains                    total period should be sufficient time for            to replace all chord segments made of
                                               a link to the docket for this notice on the              manufacturers to conduct testing using                7079 aluminum with new, improved
                                               regulation.gov site. The                                 the new oven test procedure and                       chord segments made of 7075
                                               www.regulations.gov Web page contains                    aggregate results. DOE will consider any              aluminum. We are proposing this AD to
                                               instructions on how to access all                        comments received by midnight of                      detect and correct stress corrosion and
                                               documents in the docket, including                       September 9, 2015 to be timely                        potential early fatigue cracking in the
                                               public comments.                                         submitted.                                            horizontal stabilizer, which could result
                                               FOR FURTHER INFORMATION CONTACT:                                                                               in reduced structural integrity of the
                                                                                                          Issued in Washington, DC, on July 23,               horizontal stabilizer.
                                               Mr. John Cymbalsky, U.S. Department of
                                                                                                        2015.
                                                  Energy, Office of Energy Efficiency                                                                         DATES: We must receive comments on
                                                  and Renewable Energy, Building                        Kathleen B. Hogan,                                    this proposed AD by September 14,
                                                  Technologies Program, EE–2J, 1000                     Deputy Assistant Secretary for Energy                 2015.
                                                  Independence Avenue SW.,                              Efficiency, Energy Efficiency and Renewable
                                                                                                        Energy.
                                                                                                                                                              ADDRESSES:  You may send comments,
                                                  Washington, DC 20585–0121.                                                                                  using the procedures found in 14 CFR
                                                  Telephone: (202) 287–1692. Email:                     [FR Doc. 2015–18687 Filed 7–29–15; 8:45 am]
                                                                                                                                                              11.43 and 11.45, by any of the following
                                                  kitchen_ranges_and_ovens@                             BILLING CODE 6450–01–P
                                                                                                                                                              methods:
                                                  ee.doe.gov.                                                                                                   • Federal eRulemaking Portal: Go to
                                               Ms. Celia Sher, U.S. Department of
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                                                                                                                                                              http://www.regulations.gov. Follow the
                                                  Energy, Office of the General Counsel,                                                                      instructions for submitting comments.
                                                  GC–33, 1000 Independence Avenue                                                                               • Fax: 202–493–2251.
                                                  SW., Washington, DC 20585–0121.                                                                               • Mail: U.S. Department of
                                                  Telephone: (202) 287–6122. Email:                                                                           Transportation, Docket Operations, M–
                                                  Celia.Sher@hq.doe.gov.                                                                                      30, West Building Ground Floor, Room
                                               SUPPLEMENTARY INFORMATION: On June                                                                             W12–140, 1200 New Jersey Avenue SE.,
                                               10, 2015, DOE published a notice of                                                                            Washington, DC 20590.


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                                               45454                    Federal Register / Vol. 80, No. 146 / Thursday, July 30, 2015 / Proposed Rules

                                                 • Hand Delivery: Deliver to Mail                        economic, environmental, and energy                             that it is necessary to initiate further
                                               address above between 9 a.m. and 5                        aspects of this proposed AD. We will                            rulemaking to continue to require the
                                               p.m., Monday through Friday, except                       consider all comments received by the                           repetitive inspections required by AD
                                               Federal holidays.                                         closing date and may amend this                                 2012–17–13, and to add a requirement
                                                 For service information identified in                   proposed AD because of those                                    for replacement of all chord segments
                                               this proposed AD, contact Boeing                          comments.                                                       made of 7079 aluminum with new
                                               Commercial Airplanes, Attention: Data                       We will post all comments we                                  chord segments made of 7075
                                               & Services Management, 3855                               receive, without change, to http://                             aluminum. This proposed AD follows
                                               Lakewood Boulevard, MC D800–0019,                         www.regulations.gov, including any                              from that determination.
                                               Long Beach, CA 90846–0001; telephone                      personal information you provide. We
                                                                                                         will also post a report summarizing each                        Related Service Information Under 1
                                               206–544–5000, extension 2; fax 206–
                                                                                                         substantive verbal contact we receive                           CFR Part 51
                                               766–5683; Internet https://
                                               www.myboeingfleet.com. You may view                       about this proposed AD.                                           We reviewed Boeing 707 Alert Service
                                               this referenced service information at                    Discussion                                                      Bulletin A3515, Revision 1, dated
                                               the FAA, Transport Airplane                                                                                               October 10, 2014. The service
                                               Directorate, 1601 Lind Avenue SW.,                          On August 24, 2012, we issued AD                              information describes procedures for
                                               Renton, WA. For information on the                        2012–17–13, Amendment 39–17176 (77                              incorporating a new cycle counting
                                               availability of this material at the FAA,                 FR 55681, September 11, 2012), for                              procedure, determining the material for
                                               call 425–227–1221.                                        certain The Boeing Company Model 707                            the horizontal stabilizer rear spar chord
                                                                                                         airplanes, and Model 720 and 720B                               segment, inspecting for stress corrosion
                                               Examining the AD Docket                                   series airplanes. For certain airplanes,
                                                                                                                                                                         cracking and fatigue cracking, repair,
                                                  You may examine the AD docket on                       AD 2012–17–13 required using
                                                                                                                                                                         and replacing all chord segments made
                                               the Internet at http://                                   redefined flight cycle counts,
                                                                                                                                                                         of 7079 aluminum with new, improved
                                               www.regulations.gov by searching for                      determining the type of material of the
                                                                                                                                                                         chord segments made of 7075
                                               and locating Docket No. FAA–2015–                         horizontal stabilizer, rear spar, and
                                                                                                                                                                         aluminum. This service information is
                                               2965; or in person at the Docket                          upper and lower chords on the inboard
                                                                                                                                                                         reasonably available because the
                                               Management Facility between 9 a.m.                        and outboard ends of the rear spar;
                                                                                                                                                                         interested parties have access to it
                                               and 5 p.m., Monday through Friday,                        repetitively inspecting for cracking of
                                                                                                                                                                         through their normal course of business
                                               except Federal holidays. The AD docket                    the horizontal stabilizer components;
                                                                                                                                                                         or by the means identified in the
                                               contains this proposed AD, the                            and repairing or replacing the chord, or
                                                                                                                                                                         ADDRESSES section of this NPRM.
                                               regulatory evaluation, any comments                       modifying chord segments made from
                                               received, and other information. The                      7079 aluminum, if necessary. For all                            FAA’s Determination
                                                                                                         airplanes, AD 2012–17–13 required
                                               street address for the Docket Office                                                                                        We are proposing this AD because we
                                                                                                         inspecting certain structurally
                                               (phone: 800–647–5527) is in the                                                                                           evaluated all the relevant information
                                                                                                         significant items, and repairing
                                               ADDRESSES section. Comments will be                                                                                       and determined the unsafe condition
                                                                                                         discrepancies if necessary. AD 2012–
                                               available in the AD docket shortly after                                                                                  described previously is likely to exist or
                                                                                                         17–13 resulted from reports of stress
                                               receipt.                                                                                                                  develop in other products of these same
                                                                                                         corrosion cracking in the chord
                                               FOR FURTHER INFORMATION CONTACT:                          segments made from 7079 aluminum in                             type designs.
                                               Chandra Ramdoss, Aerospace Engineer,                      the horizontal stabilizer rear spar, and                        Proposed AD Requirements
                                               Airframe Branch, ANM–120L, FAA, Los                       potential early fatigue cracking in the
                                               Angeles Aircraft Certification Office                     chord segments made from 7075                                      This proposed AD would retain all
                                               (ACO), 3960 Paramount Boulevard,                          aluminum. We issued AD 2012–17–13                               requirements of AD 2012–17–13,
                                               Lakewood, CA 90712–4137; phone:                           to detect and correct stress corrosion                          Amendment 39–17176 (77 FR 55681,
                                               562–627–5239; fax: 562–627–5210;                          and potential early fatigue cracking in                         September 11, 2012). This proposed AD
                                               email: chandraduth.ramdoss@faa.gov.                       the horizontal stabilizer, which could                          would also add a requirement to replace
                                               SUPPLEMENTARY INFORMATION:                                compromise the structural integrity of                          all chord segments made of 7079
                                                                                                         the stabilizer.                                                 aluminum with new chord segments
                                               Comments Invited                                                                                                          made of 7075 aluminum. This
                                                 We invite you to send any written                       Actions Since AD 2012–17–13,                                    replacement would not terminate the
                                               relevant data, views, or arguments about                  Amendment 39–17176 (77 FR 55681,                                repetitive inspections required by AD
                                               this proposed AD. Send your comments                      September 11, 2012), Was Issued                                 2012–17–13.
                                               to an address listed under the                              The preamble to AD 2012–17–13,                                Costs of Compliance
                                               ADDRESSES section. Include ‘‘Docket No.                   Amendment 39–17176 (77 FR 55681,
                                               FAA–2015–2965; Directorate Identifier                     September 11, 2012), explained that we                             We estimate that this proposed AD
                                               2014–NM–227–AD’’ at the beginning of                      considered the requirements ‘‘interim                           affects 10 airplanes of U.S. registry.
                                               your comments. We specifically invite                     action’’ and were considering further                              We estimate the following costs to
                                               comments on the overall regulatory,                       rulemaking. We now have determined                              comply with this proposed AD:

                                                                                                                 TABLE—ESTIMATED COSTS
                                                                 Action                                        Work hours                                  Parts                  Cost per product         Fleet cost
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                                               Retained inspections from AD 2012–                 Up to 32 work-hours X $85 per hour =           $0 ..........................   Up to $2,720 per      Up to $27,200 per
                                                 17–13, Amendment 39–17176 (77                      up to $2,720 per inspection cycle.                                             inspection cycle.     inspection cycle
                                                 FR 55681, September 11, 2012).




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                                                                        Federal Register / Vol. 80, No. 146 / Thursday, July 30, 2015 / Proposed Rules                                                     45455

                                                                                                        TABLE—ESTIMATED COSTS—Continued
                                                                 Action                                          Work hours                             Parts             Cost per product          Fleet cost

                                               Replacement [new action] ....................      500 work-hours X $85 per work-hour              Up to $228,000         Up to $2,322,500      Up to
                                                                                                    = $42,500.                                      per chord.             (up to 10 chords      $23,225,000 2
                                                                                                                                                                           per airplane) 1.
                                                1 The parts for the modification could cost up to $2.28 million per airplane, depending on whether only one operator is ordering the parts or
                                               multiple operators. The parts cost will go down if multiple operators order parts at the same time.
                                                2 The number of chords which must be replaced on each specific airplane varies.




                                               Authority for This Rulemaking                             The Proposed Amendment                                    (f) Compliance
                                                  Title 49 of the United States Code                                                                                  Comply with this AD within the
                                                                                                           Accordingly, under the authority                        compliance times specified, unless already
                                               specifies the FAA’s authority to issue                    delegated to me by the Administrator,                     done.
                                               rules on aviation safety. Subtitle I,                     the FAA proposes to amend 14 CFR part
                                               Section 106, describes the authority of                                                                             (g) Retained Flight Cycle Counting
                                                                                                         39 as follows:                                            Procedure, With Revised Service
                                               the FAA Administrator. Subtitle VII,
                                                                                                                                                                   Information
                                               Aviation Programs, describes in more                      PART 39—AIRWORTHINESS
                                               detail the scope of the Agency’s                          DIRECTIVES                                                   This paragraph restates the requirements of
                                               authority.                                                                                                          paragraph (g) of AD 2012–17–13,
                                                                                                                                                                   Amendment 39–17176 (77 FR 55681,
                                                  We are issuing this rulemaking under                   ■ 1. The authority citation for part 39                   September 11, 2012), with revised service
                                               the authority described in Subtitle VII,                  continues to read as follows:                             information. Flight cycles, as used in this
                                               Part A, Subpart III, Section 44701,                            Authority: 49 U.S.C. 106(g), 40113, 44701.           AD, must be counted as defined in the
                                               ‘‘General requirements.’’ Under that                                                                                service information identified in paragraph
                                               section, Congress charges the FAA with                    § 39.13    [Amended]                                      (g)(1), (g)(2), or (g)(3) of this AD.
                                               promoting safe flight of civil aircraft in                                                                             (1) Boeing 707 Alert Service Bulletin
                                               air commerce by prescribing regulations                   ■ 2. The FAA amends § 39.13 by                            A3515, dated December 19, 2007 (for Model
                                                                                                         removing Airworthiness Directive (AD)                     airplanes).
                                               for practices, methods, and procedures                                                                                 (2) Boeing 707 Alert Service Bulletin
                                               the Administrator finds necessary for                     2012–17–13, Amendment 39–17176 (77
                                                                                                         FR 55681, September 11, 2012), and                        A3515, Revision 1, dated October 10, 2014
                                               safety in air commerce. This regulation                                                                             (for Model airplanes).
                                               is within the scope of that authority                     adding the following new AD:                                 (3) Boeing 707 Alert Service Bulletin
                                               because it addresses an unsafe condition                  The Boeing Company: Docket No. FAA–                       A3516, dated April 4, 2008 (for Model
                                               that is likely to exist or develop on                         2015–2965; Directorate Identifier 2014–               airplanes, and Model 720 and 720B series
                                               products identified in this rulemaking                        NM–227–AD.                                            airplanes).
                                               action.                                                   (a) Comments Due Date                                     (h) Retained Determination of Material of
                                                                                                                                                                   the Components of the Horizontal Stabilizer,
                                               Regulatory Findings                                        The FAA must receive comments on this                    With Revised Service Information
                                                                                                         AD action by September 14, 2015.
                                                 We have determined that this                                                                                         This paragraph restates the actions
                                               proposed AD would not have federalism                     (b) Affected ADs                                          required by paragraph (h) of AD 2012–17–13,
                                               implications under Executive Order                          This AD replaces AD 2012–17–13,                         Amendment 39–17176 (77 FR 55681,
                                               13132. This proposed AD would not                         Amendment 39–17176 (77 FR 55681,                          September 11, 2012), with revised service
                                                                                                         September 11, 2012).                                      information. For airplanes identified in
                                               have a substantial direct effect on the
                                                                                                                                                                   Boeing 707 Alert Service Bulletin A3515,
                                               States, on the relationship between the                   (c) Applicability                                         dated December 19, 2007, or Boeing 707
                                               national Government and the States, or                                                                              Alert Service Bulletin A3515, Revision 1,
                                                                                                           This AD applies to The Boeing Company
                                               on the distribution of power and                                                                                    dated October 10, 2014: At the earlier of the
                                                                                                         airplanes, certificated in any category;
                                               responsibilities among the various                        identified in paragraphs (c)(1) and (c)(2) of             times specified in paragraphs (h)(1) and
                                               levels of government.                                                                                               (h)(2) of this AD, determine the type of
                                                                                                         this AD.
                                                 For the reasons discussed above, I                                                                                material of the horizontal stabilizer, rear spar,
                                                                                                           (1) Model 707 airplanes identified in
                                               certify that the proposed regulation:                                                                               upper chords, and lower chords on the
                                                                                                         Boeing 707 Alert Service Bulletin A3515,
                                                                                                                                                                   inboard and outboard ends of the rear spar,
                                                 (1) Is not a ‘‘significant regulatory                   Revision 1, dated October 10, 2014.                       in accordance with Part 2 of the
                                               action’’ under Executive Order 12866,                       (2) Model 720 and 720B series airplanes                 Accomplishment Instructions of Boeing 707
                                                 (2) Is not a ‘‘significant rule’’ under                 identified in Boeing 707 Alert Service                    Alert Service Bulletin A3515, dated
                                               the DOT Regulatory Policies and                           Bulletin A3516, dated April 4, 2008.                      December 19, 2007, or Boeing 707 Alert
                                               Procedures (44 FR 11034, February 26,                     (d) Subject                                               Service Bulletin A3515, Revision 1, dated
                                               1979),                                                                                                              October 10, 2014.
                                                                                                          Air Transport Association (ATA) of                          (1) Within 180 days after October 16, 2012
                                                 (3) Will not affect intrastate aviation                 America Code 55, Stabilizers.                             (the effective date of AD 2012–17–13,
                                               in Alaska, and                                                                                                      Amendment 39–17176 (77 FR 55681,
                                                                                                         (e) Unsafe Condition
                                                 (4) Will not have a significant                                                                                   September 11, 2012)).
                                               economic impact, positive or negative,                       This AD was prompted by a determination                   (2) Before further flight after any horizontal
                                                                                                         that all chord segments made of 7079
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                                               on a substantial number of small entities                                                                           stabilizer is replaced after October 16, 2012.
                                                                                                         aluminum must be replaced with new,
                                               under the criteria of the Regulatory                                                                                (i) Retained Repetitive Inspections of 7075
                                                                                                         improved chord segments made of 7075
                                               Flexibility Act.                                          aluminum. We are issuing this AD to detect                Aluminum Components, With Revised
                                               List of Subjects in 14 CFR Part 39                        and correct stress corrosion and potential                Service Information
                                                                                                         early fatigue cracking in the horizontal                     This paragraph restates the actions
                                                 Air transportation, Aircraft, Aviation                  stabilizer, which could result in reduced                 required by paragraph (i) of AD 2012–17–13,
                                               safety, Incorporation by reference,                       structural integrity of the horizontal                    Amendment 39–17176 (77 FR 55681,
                                               Safety.                                                   stabilizer.                                               September 11, 2012), with revised service



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                                               45456                    Federal Register / Vol. 80, No. 146 / Thursday, July 30, 2015 / Proposed Rules

                                               information. For airplanes with horizontal               in paragraphs (k)(1), (k)(2), and (k)(3) of this         (ii) Replace the chord with a new chord,
                                               stabilizer components made from 7075                     AD.                                                   in accordance with Part 6 of the
                                               aluminum, as determined during the                          (1) Do a special detailed inspection for           Accomplishment Instructions of Boeing 707
                                               inspection required by paragraph (h) of this             cracking of the upper chord of the inboard            Alert Service Bulletin A3515, dated
                                               AD: Within 180 days after October 16, 2012               side of the rear spar of both the -left and           December 19, 2007, or Boeing 707 Alert
                                               (the effective date of AD 2012–17–13), and               right-side horizontal stabilizers from                Service Bulletin A3515, Revision 1, dated
                                               before further flight after any replacement of           stabilizer station –13.179 to 92.55, in               October 10, 2014.
                                               the horizontal stabilizer, do a special detailed         accordance with Part 3 of the                            (3) Do low frequency eddy current (LFEC)
                                               inspection for cracking of the upper chord on            Accomplishment Instructions of Boeing 707             inspections for cracking of the forward skin
                                               the inboard end of the rear spar on both the             Alert Service Bulletin A3515, dated                   flanges of the upper and lower chords of the
                                               left and right side horizontal stabilizers, from         December 19, 2007, or Boeing 707 Alert                rear spar in the left and right side horizontal
                                               stabilizer station –13.179 to 92.55, in                  Service Bulletin A3515, Revision 1, dated             stabilizers from stabilizer stations –13.179 to
                                               accordance with Part 3 of the                            October 10, 2014. Repeat the inspection               272.55 (for lower chords) and 92.55 to 272.55
                                               Accomplishment Instructions of Boeing 707                thereafter at intervals not to exceed 250 flight      (for upper chords), in accordance with Part
                                               Alert Service Bulletin A3515, dated                      cycles or 180 days, whichever occurs first. If        5 of the Accomplishment Instructions of
                                               December 19, 2007, or Boeing 707 Alert                   any cracking is found during any inspection           Boeing 707 Alert Service Bulletin A3515,
                                               Service Bulletin A3515, Revision 1, dated                required by this paragraph, before further            dated December 19, 2007, or Boeing 707
                                               October 10, 2014. Repeat the inspections                 flight, either repair the cracking, in                Alert Service Bulletin A3515, Revision 1,
                                               thereafter at intervals not to exceed 500 flight         accordance with Part 3 of the                         dated October 10, 2014. Repeat the
                                               cycles, and before further flight after any              Accomplishment Instructions of Boeing 707             inspections thereafter at intervals not to
                                               replacement of the horizontal stabilizer,                Alert Service Bulletin A3515, dated                   exceed 1,000 flight cycles or 180 days,
                                               except as provided by paragraph (j) of this              December 19, 2007, or Boeing 707 Alert                whichever occurs first. If any cracking is
                                               AD. If any cracking is found, before further             Service Bulletin A3515, Revision 1, dated             found during any inspection required by this
                                               flight, either repair the cracking in                    October 10, 2014, except as required by               paragraph, before further flight, do the
                                               accordance with Part 3 of the                            paragraph (n) of this AD; or replace the chord        actions specified in either paragraph (k)(3)(i)
                                               Accomplishment Instructions of Boeing 707                with a new chord, in accordance with Part             or paragraph (k)(3)(ii) of this AD.
                                               Alert Service Bulletin A3515, dated                      6 of the Accomplishment Instructions of                  (i) Repair any cracking, determine whether
                                               December 19, 2007, or Boeing 707 Alert                   Boeing 707 Alert Service Bulletin A3515,              all 7079 upper and lower chord segments
                                               Service Bulletin A3515, Revision 1, dated                dated December 19, 2007, or Boeing 707                installed on the horizontal stabilizer have
                                               October 10, 2014, except as required by                  Alert Service Bulletin A3515, Revision 1,             had the Part II—Preventative Modification
                                               paragraph (n) of this AD; or replace the chord           dated October 10, 2014.                               specified in Boeing Service Bulletin 3381
                                               with a new chord, in accordance with Part                   (2) Do a high frequency eddy current               done, and do all applicable modifications, in
                                               6 of the Accomplishment Instructions of                  inspection for cracking of the web flanges of         accordance with the Accomplishment
                                               Boeing 707 Alert Service Bulletin A3515,                 the upper and lower chords of the rear spar           Instructions of Boeing 707 Alert Service
                                               dated December 19, 2007, or Boeing 707                   in the left and right side horizontal stabilizers     Bulletin A3515, dated December 19, 2007, or
                                               Alert Service Bulletin A3515, Revision 1,                from stabilizer stations 92.55 to 272.55, in          Boeing 707 Alert Service Bulletin A3515,
                                               dated October 10, 2014.                                  accordance with Part 4 of the                         Revision 1, dated October 10, 2014. Do the
                                                                                                        Accomplishment Instructions of Boeing 707             actions required by this paragraph in
                                               (j) Retained Repetitive Inspections on                   Alert Service Bulletin A3515, dated                   accordance with Part 5 of the
                                               Airplanes With Replaced Chord, With                      December 19, 2007, or Boeing 707 Alert                Accomplishment Instructions of Boeing 707
                                               Revised Service Information                              Service Bulletin A3515, Revision 1, dated             Alert Service Bulletin A3515, dated
                                                  This paragraph restates the actions                   October 10, 2014. Repeat the inspection               December 19, 2007, or Boeing 707 Alert
                                               required by paragraph (j) of AD 2012–17–13,              thereafter at intervals not to exceed 1,000           Service Bulletin A3515, Revision 1, dated
                                               Amendment 39–17176 (77 FR 55681,                         flight cycles or 180 days, whichever occurs           October 10, 2014, except as required by
                                               September 11, 2012), with revised service                first. If any cracking is found during any            paragraph (n) of this AD. Do all applicable
                                               information. For airplanes on which the                  inspection required by this paragraph, before         modifications before further flight.
                                               chord is replaced with a new chord in                    further flight, do the actions specified in              (ii) Replace the chord with a new chord,
                                               accordance with Part 6 of the                            paragraph (k)(2)(i) or (k)(2)(ii) of this AD.         in accordance with Part 6 of the
                                               Accomplishment Instructions of Boeing 707                   (i) Determine whether the cracking meets           Accomplishment Instructions of Boeing 707
                                               Alert Service Bulletin A3515, dated                      the limits specified in Part 4 of the                 Alert Service Bulletin A3515, dated
                                               December 19, 2007, or Boeing 707 Alert                   Accomplishment Instructions of Boeing 707             December 19, 2007; or Boeing 707 Alert
                                               Service Bulletin A3515, Revision 1, dated                Alert Service Bulletin A3515, dated                   Service Bulletin A3515, Revision 1, dated
                                               October 10, 2014: Within 4,000 flight cycles             December 19, 2007, or Boeing 707 Alert                October 10, 2014.
                                               after the chord replacement, do the                      Service Bulletin A3515, Revision 1, dated
                                                                                                        October 10, 2014, and whether a previous              (l) Retained Modification/Chord
                                               inspections required by paragraph (i) of this
                                                                                                        repair has been done; determine if all 7079           Replacement, With Revised Service
                                               AD, and repeat the inspections thereafter at
                                                                                                        upper and lower chord segments installed on           Information
                                               the times specified in paragraph (i) of this
                                               AD.                                                      the horizontal stabilizer have had the Part II,          This paragraph restates the actions
                                                                                                        Group 1, Preventative Modification specified          required by paragraph (l) of AD 2012–17–13,
                                               (k) Retained Repetitive Inspections of 7079              in Boeing Service Bulletin 3356 done; and do          Amendment 39–17176 (77 FR 55681,
                                               Aluminum Components, With Revised                        all applicable repairs and modifications, in          September 11, 2012), with revised service
                                               Service Information                                      accordance with the Accomplishment                    information. For airplanes identified in
                                                  This paragraph restates the actions                   Instructions of Boeing 707 Alert Service              Boeing 707 Alert Service Bulletin A3515,
                                               required by paragraph (k) of AD 2012–17–13,              Bulletin A3515, dated December 19, 2007, or           dated December 19, 2007, or Boeing 707
                                               Amendment 39–17176 (77 FR 55681,                         Boeing 707 Alert Service Bulletin A3515,              Alert Service Bulletin A3515, Revision 1,
                                               September 11, 2012), with revised service                Revision 1, dated October 10, 2014. Do the            dated October 10, 2014, with horizontal
                                               information. For airplanes with horizontal               actions required by this paragraph in                 stabilizers that have rear spar chord
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                                               stabilizers that have components of the                  accordance with Part 4 of the                         components made from 7079 aluminum and
                                               chords of the rear spar made from 7079                   Accomplishment Instructions of Boeing 707             have not had embodied the modification of
                                               aluminum, as determined during the                       Alert Service Bulletin A3515, dated                   Part II of Boeing Service Bulletin 3381, dated
                                               inspection required by paragraph (h) of this             December 19, 2007, or Boeing 707 Alert                July 25, 1980, or Boeing Service Bulletin
                                               AD: Within 180 days after October 16, 2012               Service Bulletin A3515, Revision 1, dated             3381, Revision 1, dated July 31, 1981: Before
                                               (the effective date of AD 2012–17–13), do the            October 10, 2014, except as required by               further flight after determining the type of
                                               actions required by paragraphs (k)(1), (k)(2),           paragraph (n) of this AD. Do all applicable           material in accordance with paragraph (h) of
                                               and (k)(3) of this AD, and repeat those                  repairs and modifications before further              this AD, modify all 7079 chord segments
                                               actions at the applicable intervals specified            flight.                                               installed on the horizontal stabilizer, in



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                                                                        Federal Register / Vol. 80, No. 146 / Thursday, July 30, 2015 / Proposed Rules                                                45457

                                               accordance with Part 5 of the                            00–00, ‘‘Structures-General,’’ of Part 6—Eddy           (4) AMOCs approved for AD 2012–17–13,
                                               Accomplishment Instructions of Boeing 707                Current, of the Boeing 707/720                        Amendment 39–17176 (77 FR 55681,
                                               Alert Service Bulletin A3515, dated                      Nondestructive Test Manual, Document D6–              September 11, 2012), are approved as
                                               December 19, 2007, or Boeing 707 Alert                   48023, Revision 118, dated July 15, 2011.             AMOCs for the corresponding provisions of
                                               Service Bulletin A3515, Revision 1, dated                  (2) Subject 55–10–07, ‘‘Horizontal                  this AD.
                                               October 10, 2014; or replace the chord, in               Stabilizer,’’ of Part 6—Eddy Current, of the
                                               accordance with Part 6 of the                            Boeing 707/720 Nondestructive Test Manual,            (s) Related Information
                                               Accomplishment Instructions of Boeing 707                Document D6–48023, Revision 118, dated                   (1) For more information about this AD,
                                               Alert Service Bulletin A3515, dated                      July 15, 2011.                                        contact Chandra Ramdoss, Aerospace
                                               December 19, 2007, or Boeing 707 Alert                     (3) Subject 51–01–00, ‘‘Orientation and             Engineer, Airframe Branch, ANM–120L,
                                               Service Bulletin A3515, Revision 1, dated                Preparation for Testing’’ of Part 1—General,          FAA, Los Angeles Aircraft Certification
                                               October 10, 2014.                                        of the Boeing 707/720 Nondestructive Test             Office (ACO), 3960 Paramount Boulevard,
                                                                                                        Manual, Document D6–48023, Revision 118,              Lakewood, CA 90712–4137; phone: 562–627–
                                               (m) Retained Supplemental Structural                     dated July 15, 2011.                                  5239; fax: 562–627–5210; email:
                                               Inspection Document Inspections
                                                                                                        (p) Retained Parts Installation Prohibition           chandraduth.ramdoss@faa.gov.
                                                  This paragraph restates the actions                                                                            (2) For service information identified in
                                               required by paragraph (m) of AD 2012–17–                   As of October 16, 2012 (the effective date          this AD, contact Boeing Commercial
                                               13, Amendment 39–17176 (77 FR 55681,                     of AD 2012–17–13, Amendment 39–17176                  Airplanes, Attention: Data & Services
                                               September 11, 2012). For all airplanes:                  (77 FR 55681, September 11, 2012)), no                Management, 3855 Lakewood Boulevard, MC
                                               Within 180 days or 1,000 flight cycles after             person may install any horizontal stabilizer          D800–0019, Long Beach, CA 90846–0001;
                                               October 16, 2012 (the effective date of AD               assembly with any chord segment having a              telephone 206–544–5000, extension 2; fax
                                               2012–17–13), whichever occurs first, do the              part number other than that identified in             206–766–5683; Internet https://
                                               inspections of the applicable structurally               paragraph 2.C.2. of Boeing 707 Alert Service          www.myboeingfleet.com. You may view this
                                               significant items specified in and in                    Bulletin A3515, dated December 19, 2007, or           referenced service information at the FAA,
                                               accordance with the Accomplishment                       Boeing 707 Alert Service Bulletin A3515,              Transport Airplane Directorate, 1601 Lind
                                               Instructions of Boeing 707 Alert Service                 Revision 1, dated October 10, 2014, on any            Avenue SW., Renton, WA. For information
                                               Bulletin A3516, dated April 4, 2008. If any              airplane.                                             on the availability of this material at the
                                               cracking is found, before further flight, repair                                                               FAA, call 425–227–1221.
                                               in accordance with the procedures specified              (q) New Replacement of 7079 Aluminum
                                               in paragraph (r) of this AD. The inspections             Components                                               Issued in Renton, Washington, on July 16,
                                               required by AD 85–12–01 R1, Amendment                      Within 48 months after the effective date           2015.
                                               39–5439 (51 FR 36002, October 8, 1986), are              of this AD: Replace all 7079 aluminum chord           Suzanne Masterson,
                                               still required, except, as of October 16, 2012           segments of the upper and lower chords                Acting Manager, Transport Airplane
                                               (the effective date of AD 2012–17–13), the               installed on the horizontal stabilizer with           Directorate, Aircraft Certification Service.
                                               flight-cycle interval for the repetitive                 7075 aluminum chord segments, in
                                               inspections specified in paragraph 1.E.,                 accordance with Part 6 of the                         [FR Doc. 2015–18559 Filed 7–29–15; 8:45 am]
                                               ‘‘Compliance,’’ of Boeing 707 Alert Service              Accomplishment Instructions of Boeing 707             BILLING CODE 4910–13–P
                                               Bulletin A3516, dated April 4, 2008, must be             Alert Service Bulletin A3515, Revision 1,
                                               counted in accordance with the requirements              dated October 10, 2014. Within 4,000 flight
                                               of paragraph (g) of this AD.                             cycles after accomplishing the replacements           DEPARTMENT OF TRANSPORTATION
                                                                                                        required by this paragraph, repeat the
                                               (n) Retained Exception to Certain Service                inspection required by paragraph (j) of this          Federal Aviation Administration
                                               Information: Contacting FAA for Crack                    AD; and repeat the inspection thereafter at
                                               Repair                                                   intervals not to exceed 500 flight cycles, and        14 CFR Part 39
                                                  This paragraph restates the actions                   before further flight after any replacement of
                                               required by paragraph (n) of AD 2012–17–13,              the horizontal stabilizer.                            [Docket No. FAA–2015–2964; Directorate
                                               Amendment 39–17176 (77 FR 55681,                                                                               Identifier 2014–NM–206–AD]
                                                                                                        (r) Alternative Methods of Compliance
                                               September 11, 2012), with revised service
                                               information. If any cracking is found during             (AMOCs)                                               RIN 2120–AA64
                                               any inspection required by this AD, and                     (1) The Manager, Los Angeles Aircraft
                                               Boeing 707 Alert Service Bulletin A3515,                 Certification Office (ACO), FAA, has the              Airworthiness Directives; Airbus
                                               dated December 19, 2007, or Boeing 707                   authority to approve AMOCs for this AD, if            Airplanes
                                               Alert Service Bulletin A3515, Revision 1,                requested using the procedures found in 14
                                               dated October 10, 2014, specifies to contact             CFR 39.19. In accordance with 14 CFR 39.19,           AGENCY: Federal Aviation
                                               Boeing for appropriate action: Before further            send your request to your principal inspector         Administration (FAA), DOT.
                                               flight, repair the cracking using a method               or local Flight Standards District Office, as         ACTION: Notice of proposed rulemaking
                                               approved in accordance with the procedures               appropriate. If sending information directly          (NPRM).
                                               specified in paragraph (r) of this AD.                   to the manager of the ACO, send it to the
                                                                                                        attention of the person identified in                 SUMMARY:   We propose to adopt a new
                                               (o) Retained Exception to Certain Service                paragraph (s)(1) of this AD. Information may
                                               Information: Nondestructive Test
                                                                                                                                                              airworthiness directive (AD) for all
                                                                                                        be emailed to: 9-ANM-LAACO-AMOC-                      Airbus Model A319, A320, and A321
                                               Compliance Procedures                                    Requests@faa.gov.                                     series airplanes. This proposed AD is
                                                 This paragraph restates the requirements of               (2) Before using any approved AMOC,
                                               paragraph (o) of AD 2012–17–13,                          notify your appropriate principal inspector,          intended to complete certain mandated
                                               Amendment 39–17176 (77 FR 55681,                         or lacking a principal inspector, the manager         programs intended to support the
                                               September 11, 2012), with revised service                of the local flight standards district office/        airplane reaching its limit of validity
                                               information. Where Boeing 707 Alert Service              certificate holding district office.                  (LOV) of the engineering data that
                                               Bulletin A3515, dated December 19, 2007, or                 (3) An AMOC that provides an acceptable            support the established structural
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                                               Boeing 707 Alert Service Bulletin A3515,                 level of safety may be used for any repair            maintenance program. This proposed
                                               Revision 1, dated October 10, 2014, specifies            required by this AD if it is approved by the          AD would require reinforcing the
                                               that operators ‘‘refer to’’ nondestructive test          Boeing Commercial Airplanes Organization              forward pressure bulkhead at a certain
                                               (NDT) procedures, the procedures must be                 Designation Authorization (ODA) that has
                                               done in accordance with the service                      been authorized by the Manager, Los Angeles           stringer on both the left-hand and right-
                                               information identified in paragraphs (o)(1),             ACO, to make those findings. For a repair             hand sides, and related investigative
                                               (o)(2), and (o)(3) of this AD, as applicable.            method to be approved, the repair must meet           and corrective actions if necessary. We
                                                 (1) Figure 20, ‘‘Electrical Conductivity               the certification basis of the airplane, and the      are proposing this AD to prevent fatigue
                                               Measurement for Aluminum,’’ of Subject 51–               approval must specifically refer to this AD.          cracking of the forward pressure


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Document Created: 2018-02-23 09:30:18
Document Modified: 2018-02-23 09:30:18
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotice of proposed rulemaking (NPRM).
DatesWe must receive comments on this proposed AD by September 14, 2015.
ContactChandra Ramdoss, Aerospace Engineer, Airframe Branch, ANM-120L, FAA, Los Angeles Aircraft Certification Office (ACO), 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627-5239; fax: 562-627-5210; email: [email protected]
FR Citation80 FR 45453 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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