81_FR_1352 81 FR 1345 - Airworthiness Directives; The Boeing Company Airplanes

81 FR 1345 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 7 (January 12, 2016)

Page Range1345-1349
FR Document2015-32851

We propose to supersede Airworthiness Directive (AD) 2008-05- 06, which applies to certain The Boeing Company Model 737-100, -200, - 300, -400, and -500 series airplanes. AD 2008-05-06 currently requires repetitive inspections for fatigue cracking in the longitudinal floor beam web, upper chord, and lower chord located at certain body stations, and repair if necessary. Since we issued AD 2008-05-06, we have determined that certain repairs and preventive modifications of certain longitudinal floor beam webs inadvertently omitted installation of tapered fillers. Omission of the tapered fillers creates a preload condition that may promote undetected fatigue cracking and subsequent failure of certain longitudinal floor beams. For certain airplanes, this proposed AD would require an inspection to determine if tapered fillers are installed, and related investigative and corrective actions if necessary. We are proposing this AD to detect and correct fatigue cracking of the upper and lower chords and web of the longitudinal floor beams, which could result in rapid loss of cabin pressure.

Federal Register, Volume 81 Issue 7 (Tuesday, January 12, 2016)
[Federal Register Volume 81, Number 7 (Tuesday, January 12, 2016)]
[Proposed Rules]
[Pages 1345-1349]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2015-32851]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-8131; Directorate Identifier 2015-NM-073-AD]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

-----------------------------------------------------------------------

SUMMARY: We propose to supersede Airworthiness Directive (AD) 2008-05-
06, which applies to certain The Boeing Company Model 737-100, -200, -
300, -400, and -500 series airplanes. AD 2008-05-06 currently requires 
repetitive inspections for fatigue cracking in the longitudinal floor 
beam web, upper chord, and lower chord

[[Page 1346]]

located at certain body stations, and repair if necessary. Since we 
issued AD 2008-05-06, we have determined that certain repairs and 
preventive modifications of certain longitudinal floor beam webs 
inadvertently omitted installation of tapered fillers. Omission of the 
tapered fillers creates a preload condition that may promote undetected 
fatigue cracking and subsequent failure of certain longitudinal floor 
beams. For certain airplanes, this proposed AD would require an 
inspection to determine if tapered fillers are installed, and related 
investigative and corrective actions if necessary. We are proposing 
this AD to detect and correct fatigue cracking of the upper and lower 
chords and web of the longitudinal floor beams, which could result in 
rapid loss of cabin pressure.

DATES: We must receive comments on this proposed AD by February 26, 
2016.

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.
     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 rule, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-
5000, extension 1; fax 206-766-5680; 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. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2015-
8131.

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-
8131; 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: Alan Pohl, Aerospace Engineer, 
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office, 
1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6450; fax: 
425-917-6590; 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-2015-8131; 
Directorate Identifier 2015-NM-073-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 February 20, 2008, we issued AD 2008-05-06, Amendment 39-15400 
(73 FR 11538, March 4, 2008), for certain The Boeing Company Model 737-
100, -200, -300, -400, and -500 series airplanes. AD 2008-05-06 
requires repetitive inspections for fatigue cracking in the 
longitudinal floor beam web, upper chord, and lower chord located at 
certain body stations, and repair if necessary. AD 2008-05-06 refers to 
Boeing Service Bulletin 737-57-1296, dated June 13, 2007, as an 
appropriate source of service information for accomplishing the 
required actions. AD 2008-05-06 resulted from reports of cracks in the 
center wing box longitudinal floor beams, upper chord, and lower chord. 
We issued AD 2008-05-06 to detect and correct fatigue cracking of the 
upper and lower chords and web of the longitudinal floor beams, which 
could result in rapid loss of cabin pressure.

Actions Since AD 2008-05-06, Amendment 39-15400 (73 FR 11538, March 4, 
2008), Was Issued

    Since we issued AD 2008-05-06, Amendment 39-15400 (73 FR 11538, 
March 4, 2008), Boeing issued Boeing Service Bulletin 737-57-1296, 
Revision 1, dated September 26, 2012, which is an alternative method of 
compliance (AMOC) for the actions required by AD 2008-05-06. We have 
determined that Boeing Service Bulletin 737-57-1296, Revision 1, dated 
September 26, 2012, inadvertently omitted installation of tapered 
fillers during the repair and preventive modification of certain 
longitudinal floor beam webs. Omission of the tapered fillers creates a 
preload condition that may promote undetected fatigue cracking and 
subsequent failure of the longitudinal floor beams at buttock line (BL) 
24.82 and BL 45.57.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin 737-57A1296, Revision 2, 
dated April 1, 2015. The service information describes procedures for 
various inspections for fatigue cracks in the longitudinal floor beam 
web, upper chord, and lower chord, located at the applicable body 
stations, repairs (including related investigative and corrective 
actions), and preventive modifications (including related investigative 
and corrective actions) that terminate the repetitive inspections. The 
service information also describes procedures for an inspection to 
determine if tapered fillers are installed, and related investigative 
and corrective actions. 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 2008-05-06, 
Amendment 39-15400 (73 FR 11538, March 4, 2008). This proposed AD would 
also require accomplishing the actions specified in the service 
information described previously, except as discussed under 
``Differences Between this Proposed AD and the Service Information.'' 
For information on the procedures and compliance

[[Page 1347]]

times, see this service information at http://www.regulations.gov by 
searching for and locating Docket No. FAA-2015-8131.
    The phrase ``related investigative actions'' is used in this 
proposed AD. ``Related investigative actions'' are follow-on actions 
that (1) are related to the primary action, and (2) further investigate 
the nature of any condition found. Related investigative actions in an 
AD could include, for example, inspections.
    The phrase ``corrective actions'' is used in this proposed AD. 
``Corrective actions'' are actions that correct or address any 
condition found. Corrective actions in an AD could include, for 
example, repairs.

Formatting and Other Changes Between AD 2008-05-06, Amendment 39-15400 
(73 FR 11538, March 4, 2008) and This Proposed AD

    Since AD 2008-05-06, Amendment 39-15400 (73 FR 11538, March 4, 
2008), was issued, the AD format has been revised, and certain 
paragraphs have been rearranged. As a result, the corresponding 
paragraph identifiers have been redesignated in this proposed AD, as 
listed in the following table:

                      Revised Paragraph Identifiers
------------------------------------------------------------------------
   Requirement in AD 2008-05-06,
 Amendment 39- 15400 (73 FR 11538,    Corresponding  requirement in this
           March 4, 2008)                        proposed AD
------------------------------------------------------------------------
             paragraph (f)                        paragraph (g)
             paragraph (g)                        paragraph (h)
------------------------------------------------------------------------

    In addition, airplane groups identified in Boeing Service Bulletin 
737-57-1296, dated June 13, 2007, which is referred to as the 
appropriate source of service information for accomplishing the actions 
required by AD 2008-05-06, Amendment 39-15400 (73 FR 11538, March 4, 
2008), do not, in all cases, match the airplane groups for Boeing Alert 
Service Bulletin 737-57A1296, Revision 2, dated April 1, 2015, which is 
the appropriate source of service information for accomplishing the new 
actions specified in this proposed AD.
    Also, operators of Group 5 airplanes identified in Boeing Alert 
Service Bulletin 737-57A1296, Revision 2, dated April 1, 2015, must 
contact the FAA for actions instead of accomplishing the actions 
specified in Boeing Alert Service Bulletin 737-57A1296, Revision 2, 
dated April 1, 2015. The procedures for inspections and corrective 
actions specified in Boeing Alert Service Bulletin 737-57A1296, 
Revision 2, dated April 1, 2015, do not apply to these airplanes (line 
numbers 1 through 291).

Differences Between This Proposed AD and the Service Information

    Boeing Alert Service Bulletin 737-57A1296, Revision 2, dated April 
1, 2015, specifies to contact the manufacturer for instructions on how 
to repair certain conditions, but this proposed AD would require 
repairing those conditions in one of the following ways:
     In accordance with a method that we approve; or
     Using data that meet the certification basis of the 
airplane, and that have been approved by the Boeing Commercial 
Airplanes Organization Designation Authorization (ODA) whom we have 
authorized to make those findings.

Costs of Compliance

    We estimate that this proposed AD affects 652 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                 Cost on U.S.
             Action                     Labor cost          Parts cost     Cost per product        operators
----------------------------------------------------------------------------------------------------------------
Inspections [retained actions    Up to 25 work-hours x                $0  $2,125 per          $1,385,500 per
 from AD 2008-05-06, Amendment    $85 per hour = $2,125                    inspection cycle.   inspection cycle.
 39-15400 (73 FR 11538, March     per inspection cycle.
 4, 2008)].
Tapered filler inspection [new   4 work-hours x $85 per                0  $340..............  $221,680.
 proposed action].                hour = $340.
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary repairs that 
would be required based on the results of the proposed inspection. We 
have no way of determining the number of aircraft that might need these 
repairs:

                                               On-Condition Costs
----------------------------------------------------------------------------------------------------------------
                Action                            Labor cost              Parts cost        Cost per product
----------------------------------------------------------------------------------------------------------------
Floor beam repair and optional          Up to 198 work[dash]hours x              \[1]\  Up to $16,830.
 preventative modification.              $85 per hour = $16,830.
Tapered filler repair.................  174 work[dash]hours x $85 per            \[1]\  $14,790.
                                         hour = $14,790.
----------------------------------------------------------------------------------------------------------------
\[1]\ We have received no definitive data that would enable us to provide parts cost estimates for the actions
  specified in this proposed AD.

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

[[Page 1348]]

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) 
2008-05-06, Amendment 39-15400 (73 FR 11538, March 4, 2008), and adding 
the following new AD:

The Boeing Company: Docket No. FAA-2015-8131; Directorate Identifier 
2015-NM-073-AD.

(a) Comments Due Date

    The FAA must receive comments on this AD action by February 26, 
2016.

(b) Affected ADs

    This AD replaces AD 2008-05-06, Amendment 39-15400 (73 FR 11538, 
March 4, 2008).

(c) Applicability

    This AD applies to The Boeing Company Model 737-100, -200, -300, 
-400, and -500 series airplanes; certificated in any category; as 
identified in Boeing Alert Service Bulletin 737-57A1296, Revision 2, 
dated April 1, 2015.

(d) Subject

    Air Transport Association (ATA) of America Code 57, Wings.

(e) Unsafe Condition

    This AD was prompted by results from reports of cracks in the 
center wing box longitudinal floor beams, upper chord, and lower 
chord. We are issuing this AD to detect and correct fatigue cracking 
of the upper and lower chords and web of the longitudinal floor 
beams, which could result in rapid loss of cabin pressure.

(f) Compliance

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

(g) Retained Inspections With Revised Service Information and Revised 
Affected Airplanes

    This paragraph restates the requirements of paragraph (f) of AD 
2008-05-06, Amendment 39-15400 (73 FR 11538, March 4, 2008), with 
revised service information and revised affected airplanes. For 
Groups 1 through 4 airplanes identified in Boeing Alert Service 
Bulletin 737-57A1296, Revision 2, dated April 1, 2015, do the 
various inspections for fatigue cracks in the longitudinal floor 
beam web, upper chord, and lower chord, located at the applicable 
body stations specified in the Accomplishment Instructions of Boeing 
Service Bulletin 737-57-1296, dated June 13, 2007; or Boeing Alert 
Service Bulletin 737-57A1296, Revision 2, dated April 1, 2015; by 
doing all the actions in accordance with the Accomplishment 
Instructions of Boeing Service Bulletin 737-57A1296, dated June 13, 
2007; or Boeing Alert Service Bulletin 737-57A1296, Revision 2, 
dated April 1, 2015; except as provided by paragraph (h) of this AD. 
Do the inspections at the time specified in paragraph (g)(1) or 
(g)(2) of this AD, as applicable. As of the effective date of this 
AD, only use Boeing Alert Service Bulletin 737-57A1296, Revision 2, 
dated April 1, 2015, for accomplishing the actions required by this 
paragraph.
    Note 1 to paragraphs (g) and (h) of this AD: The airplane groups 
identified in Boeing Service Bulletin 737-57-1296, dated June 13, 
2007, do not, in all cases, match the airplane groups identified in 
Boeing Alert Service Bulletin 737-57A1296, Revision 2, dated April 
1, 2015 (Group 4 airplanes in Boeing Alert Service Bulletin 737-
57A1296, Revision 2, dated April 1, 2015 coincide with certain Group 
2 airplanes in Boeing Service Bulletin 737-57-1296, dated June 13, 
2007).
    (1) For Groups 1 and 2 airplanes, except for line numbers 1 
through 291, identified in Boeing Service Bulletin 737-57-1296, 
dated June 13, 2007: Do the inspections at the applicable initial 
compliance time listed in paragraph 1.E., ``Compliance,'' of Boeing 
Service Bulletin 737-57-1296, dated June 13, 2007, except where 
Boeing Service Bulletin 737-57-1296, dated June 13, 2007, specifies 
a compliance time after the date on the service bulletin, this AD 
requires compliance within the specified compliance time after April 
8, 2008 (the effective date of AD 2008-05-06, Amendment 39-15400 (73 
FR 11538, March 4, 2008)). Repeat the inspections thereafter at the 
intervals specified in paragraph 1.E., ``Compliance,'' of Boeing 
Service Bulletin 737-57-1296, dated June 13, 2007.
    (2) For Group 3 airplanes identified in Boeing Service Bulletin 
737-57-1296, dated June 13, 2007: Do the inspections at the 
applicable initial compliance time listed in paragraph 1.E., 
``Compliance,'' of Boeing Service Bulletin 737-57-1296, dated June 
13, 2007, except where Boeing Service Bulletin 737-57-1296, dated 
June 13, 2007, specifies a compliance time after the date on the 
service bulletin, this AD requires compliance within the specified 
compliance time after April 8, 2008 (the effective date of AD 2008-
05-06, Amendment 39-15400 (73 FR 11538, March 4, 2008)). Repeat the 
inspections thereafter at the intervals specified in paragraph 1.E., 
``Compliance,'' of Boeing Service Bulletin 737-57-1296, dated June 
13, 2007.

(h) Retained Repair Instructions With Revised Service Information That 
Contains New Repair Actions

    This paragraph restates the requirements of paragraph (g) of AD 
2008-05-06, Amendment 39-15400 (73 FR 11538, March 4, 2008), with 
revised service information that contains new repair actions. If any 
crack is found during any inspection required by paragraph (g) of 
this AD, do the applicable actions specified in paragraph (h)(1) or 
(h)(2) of the AD.
    (1) For inspections done using Boeing Service Bulletin 737-57-
1296, dated June 13, 2007: If any crack is found during any 
inspection required by paragraph (g) of this AD, and Boeing Service 
Bulletin 737-57-1296, dated June 13, 2007, specifies contacting 
Boeing for repair instructions: Before further flight, repair using 
a method approved in accordance with the procedures specified in 
paragraph (n) of this AD.
    (2) For inspections done using Boeing Alert Service Bulletin 
737-57A1296, Revision 2, dated April 1, 2015: If any crack is found 
during any inspection required by paragraph (g) of this AD, before 
further flight, repair, including doing all applicable related 
investigative actions and corrective actions, in accordance with the 
Accomplishment Instructions of Boeing Alert Service Bulletin 737-
57A1296, Revision 2, dated April 1, 2015; except where Boeing Alert 
Service Bulletin 737-57A1296, Revision 2, dated April 1, 2015, 
specifies contacting Boeing for repair instructions, before further 
flight, repair using a method approved in accordance with the 
procedures specified in paragraph (n) of this AD. Accomplishing a 
repair specified in Boeing Alert Service Bulletin 737-57A1296, 
Revision 2, dated April 1, 2015, terminates the repetitive 
inspections required by paragraph (g) of this AD for the repaired 
area only.

(i) New Requirement of This AD: Inspection for Tapered Fillers for 
Certain Airplanes, Related Investigative Actions, and Corrective 
Actions

    For Groups 1 through 4, Configuration 1 airplanes identified in 
Boeing Alert Service Bulletin 737-57A1296, Revision 2, dated April 
1, 2015: Except as provided by paragraph (k) of this AD, at the 
applicable time specified in table 5 of paragraph 1.E., 
``Compliance,'' of Boeing Alert Service Bulletin 737-57A1296, 
Revision 2, dated April 1, 2015, do an inspection to determine if 
tapered fillers are installed; and do all applicable related 
investigative and corrective actions; in accordance with the 
Accomplishment Instructions of Boeing Alert

[[Page 1349]]

Service Bulletin 737-57A1296, Revision 2, dated April 1, 2015; 
except where Boeing Alert Service Bulletin 737-57A1296, Revision 2, 
dated April 1, 2015, specifies contacting Boeing for repair 
instructions, before further flight, repair using a method approved 
in accordance with the procedures specified in paragraph (n) of this 
AD. Do all applicable related investigative and corrective actions 
before further flight. A review of the maintenance records is 
acceptable in lieu of this inspection if the installation of tapered 
fillers can be conclusively determined from that review.

(j) New Requirement of This AD: Inspections and Corrective Actions for 
Group 5 Airplanes

    For Group 5 airplanes identified in Boeing Alert Service 
Bulletin 737-57A1296, Revision 2, dated April 1, 2015: Except as 
provided by paragraph (k) of this AD, at the applicable time 
specified in paragraph 1.E., ``Compliance,'' of Boeing Alert Service 
Bulletin 737-57A1296, Revision 2, dated April 1, 2015: Accomplish 
inspections and applicable corrective actions using a method 
approved in accordance with the procedures specified in paragraph 
(n) of this AD.

(k) Exception to Service Information

    Where paragraph 1.E., ``Compliance,'' of Boeing Alert Service 
Bulletin 737-57A1296, Revision 2, dated April 1, 2015, specifies a 
compliance time ``after the Revision 2 date of this service 
bulletin,'' this AD requires compliance within the specified 
compliance time ``after the effective date of this AD.''

(l) Optional Terminating Action

    Accomplishing the applicable preventative modification specified 
in paragraph 3.B.4., '' Preventive Modification'' of the 
Accomplishment Instructions of Boeing Alert Service Bulletin 737-
57A1296, Revision 2, dated April 1, 2015, terminates the applicable 
repetitive inspection required by paragraph (g) of this AD. The 
preventative modification, including related investigative and 
corrective actions, must be done in accordance with the 
Accomplishment Instructions of Boeing Alert Service Bulletin 737-
57A1296, Revision 2, dated April 1, 2015; except where Boeing Alert 
Service Bulletin 737-57A1296, Revision 2, dated April 1, 2015, 
specifies contacting Boeing for repair instructions, before further 
flight, repair using a method approved in accordance with the 
procedures specified in paragraph (n) of this AD.

(m) Credit for Previous Actions

    This paragraph provides credit for actions required by 
paragraphs (g) and (h)(2) of this AD, if those actions were 
performed before the effective date of this AD using Boeing Service 
Bulletin 737-57-1296, Revision 1, dated September 26, 2012.

(n) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Seattle 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 (o)(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, modification, or alteration required by this AD 
if it is approved by the Boeing Commercial Airplanes Organization 
Designation Authorization (ODA) that has been authorized by the 
Manager, Seattle ACO, to make those findings. To be approved, the 
repair method, modification deviation, or alteration deviation must 
meet the certification basis of the airplane and the approval must 
specifically refer to this AD.
    (4) AMOCs approved as specified in the fourth paragraph (related 
to AD 2008-05-06) of Section 1.F., Approval, of Boeing Service 
Bulletin 737-57-1296, Revision 1, dated September 26, 2012, for 
repairs and modifications are not approved for any provision of this 
AD. All other AMOCs approved for AD 2008-05-06, Amendment 39-15400 
(73 FR 11538, March 4, 2008), are approved as AMOCs for the 
corresponding provisions of this AD.

(o) Related Information

    (1) For more information about this AD, contact Alan Pohl, 
Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft 
Certification Office, 1601 Lind Avenue SW., Renton, WA 98057-3356; 
phone: 425-917-6450; fax: 425-917-6590; email: [email protected].
    (2) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 
P.O. Box 3707, MC 2H-65, Seattle, WA 98124-2207; telephone 206-544-
5000, extension 1; fax 206-766-5680; 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 December 21, 2015.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2015-32851 Filed 1-11-16; 8:45 am]
 BILLING CODE 4910-13-P



                                                                        Federal Register / Vol. 81, No. 7 / Tuesday, January 12, 2016 / Proposed Rules                                                  1345

                                                choose one hundred percent (100%) of                    two crop years ago (e.g., on the 2018                     (b) * * *
                                                the price election for commodity type                   crop year production report, you will                     (2) If you intend to claim an
                                                ruby red grapefruit with an intended use                provide your 2016 crop year                            indemnity on any unit, you must notify
                                                of fresh, you must also choose one                      production).                                           us at least 15 days prior to the beginning
                                                hundred percent (100%) of the price                     *    *     *    *     *                                of harvest, or within 24 hours if damage
                                                election for commodity type ruby red                                                                           is discovered during harvest, so we may
                                                grapefruit with an intended use of juice.               7. Insured Crop                                        have an opportunity to inspect the unit.
                                                   (b) The production guarantee per acre                   (a) In accordance with section 8 of the             You must not sell or dispose of the
                                                is progressive by stage and increases                   Basic Provisions, the insured crop will                damaged crop until after we have given
                                                from the first stage production guarantee               be each citrus fruit group you elect to                you written consent to do so. If you fail
                                                to the second stage production                          insure and for which a premium rate is                 to meet the requirements of this section,
                                                guarantee. The stages are as follows:                   provided by the actuarial documents:                   all such production will be considered
                                                   (1) The first stage extends from the                 *      *     *    *     *                              undamaged and included as production
                                                date insurance attaches through April                      (b) For each insured crop,                          to count.
                                                30 of the calendar year of normal bloom.                administrative fees will be assessed in
                                                   (2) The second stage extends from                                                                           12. Settlement of Claim
                                                                                                        accordance with section 6 of the
                                                May 1 of the calendar year of normal                    Catastrophic Risk Protection                           *      *     *    *      *
                                                bloom until the end of the insurance                    Endorsement and section 7 of the Basic                    (b) * * *
                                                period.                                                 Provisions.                                               (1) Multiplying the insured acreage
                                                *      *     *      *    *                                                                                     for each combination of commodity type
                                                                                                        8. Insurable Acreage
                                                   (e) We will reduce the yield used to                                                                        and intended use by its respective
                                                establish your production guarantee, as                    In lieu of the provisions in section 9              production guarantee;
                                                necessary, based on our estimate of the                 of the Basic Provisions that prohibit                  *      *     *    *      *
                                                effect of any circumstance that may                     insurance attaching to an insured crop                    (e) Any citrus fruit insured with an
                                                reduce your yields from previous levels.                interplanted with another agricultural                 intended use of fresh that is not
                                                Examples of these circumstances that                    commodity, interplanted acreage is                     marketable as fresh fruit due to
                                                may reduce yield may include, but are                   uninsurable, except that a citrus fruit                insurable causes will be adjusted by
                                                not necessarily limited to, interplanted                group interplanted with another                        multiplying the number of tons of such
                                                agricultural commodities; tree removal,                 perennial agricultural commodity is                    citrus fruit by the applicable Fresh Fruit
                                                topping, hedging, or pruning of trees;                  insurable unless we inspect the acreage                Factor contained in the Special
                                                damage; and change in practices. If the                 and determine it does not meet the                     Provisions.
                                                circumstance occurred:                                  requirements contained in your policy.
                                                                                                                                                               *      *     *    *      *
                                                   (1) Before the beginning of the                      *      *     *     *    *
                                                                                                                                                                 Signed in Washington, DC, on December
                                                insurance period and you notify us by                   10. Causes of Loss                                     24, 2015.
                                                the production reporting date, the yield
                                                                                                        *     *     *     *     *                              Brandon Willis,
                                                used to establish your production
                                                guarantee will be reduced for the                         (a) * * *                                            Manager, Federal Crop Insurance
                                                                                                          (9) Insects and plant disease, unless                Corporation.
                                                current crop year regardless of whether
                                                                                                        excluded or otherwise restricted                       [FR Doc. 2015–32951 Filed 1–11–16; 8:45 am]
                                                the circumstance was due to an insured
                                                                                                        through the Special Provisions,                        BILLING CODE 3410–08–P
                                                or uninsured cause of loss;                             provided the loss of production is not
                                                   (2) After the beginning of the
                                                                                                        due to damage resulting from
                                                insurance period and you notify us by                   insufficient or improper application of
                                                the production reporting date, the yield                control measures as recommended by
                                                                                                                                                               DEPARTMENT OF TRANSPORTATION
                                                used to establish your production                       agricultural experts.
                                                guarantee will be reduced for the                                                                              Federal Aviation Administration
                                                                                                          (b) In addition to the causes of loss
                                                current crop year only if the potential                 excluded in section 12 of the Basic
                                                reduction in the yield used to establish                                                                       14 CFR Part 39
                                                                                                        Provisions, we will not insure against
                                                your production guarantee is due to an                  damage or loss of production due to the                [Docket No. FAA–2015–8131; Directorate
                                                uninsured cause of loss; or                             inability to market the citrus for any                 Identifier 2015–NM–073–AD]
                                                   (3) Before or after the beginning of the             reason other than actual physical
                                                insurance period and you fail to notify                                                                        RIN 2120–AA64
                                                                                                        damage from an insurable cause of loss
                                                us by the production reporting date, an                 specified in this section. For example,
                                                amount equal to the reduction in the                                                                           Airworthiness Directives; The Boeing
                                                                                                        we will not pay you an indemnity if you                Company Airplanes
                                                yield will be added to the production to                are unable to market due to quarantine,
                                                count calculated in section 12(c) of                    boycott, or refusal of any person to                   AGENCY: Federal Aviation
                                                these Crop Provisions due to uninsured                  accept production.                                     Administration (FAA), DOT.
                                                causes. We will reduce the yield used to
                                                                                                                                                               ACTION: Notice of proposed rulemaking
                                                establish your production guarantee for                 11. Duties in the Event of Damage or
                                                                                                        Loss                                                   (NPRM).
                                                the subsequent crop year to reflect any
                                                reduction in the productive capacity of                   (a) In accordance with the                           SUMMARY:   We propose to supersede
                                                the trees or in the yield potential of the
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                                                                                                        requirements of section 14 of the Basic                Airworthiness Directive (AD) 2008–05–
                                                insured acreage.                                        Provisions, you must leave                             06, which applies to certain The Boeing
                                                *      *     *      *    *                              representative samples. In lieu of the                 Company Model 737–100, –200, –300,
                                                   (g) In lieu of the provisions in section             requirements of section 14(c)(3) of the                –400, and –500 series airplanes. AD
                                                3 of the Basic Provisions that require                  Basic Provisions, we will determine                    2008–05–06 currently requires
                                                reporting your production for the                       which trees must remain unharvested so                 repetitive inspections for fatigue
                                                previous crop year, for each crop year                  that we may inspect them in accordance                 cracking in the longitudinal floor beam
                                                you must report your production from                    with FCIC procedures.                                  web, upper chord, and lower chord


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                                                1346                    Federal Register / Vol. 81, No. 7 / Tuesday, January 12, 2016 / Proposed Rules

                                                located at certain body stations, and                   contains this proposed AD, the                         Actions Since AD 2008–05–06,
                                                repair if necessary. Since we issued AD                 regulatory evaluation, any comments                    Amendment 39–15400 (73 FR 11538,
                                                2008–05–06, we have determined that                     received, and other information. The                   March 4, 2008), Was Issued
                                                certain repairs and preventive                          street address for the Docket Office                      Since we issued AD 2008–05–06,
                                                modifications of certain longitudinal                   (phone: 800–647–5527) is in the                        Amendment 39–15400 (73 FR 11538,
                                                floor beam webs inadvertently omitted                   ADDRESSES section. Comments will be                    March 4, 2008), Boeing issued Boeing
                                                installation of tapered fillers. Omission               available in the AD docket shortly after               Service Bulletin 737–57–1296, Revision
                                                of the tapered fillers creates a preload                receipt.                                               1, dated September 26, 2012, which is
                                                condition that may promote undetected                   FOR FURTHER INFORMATION CONTACT:                       an alternative method of compliance
                                                fatigue cracking and subsequent failure                 Alan Pohl, Aerospace Engineer,                         (AMOC) for the actions required by AD
                                                of certain longitudinal floor beams. For                Airframe Branch, ANM–120S, FAA,                        2008–05–06. We have determined that
                                                certain airplanes, this proposed AD                     Seattle Aircraft Certification Office,                 Boeing Service Bulletin 737–57–1296,
                                                would require an inspection to                          1601 Lind Avenue SW., Renton, WA                       Revision 1, dated September 26, 2012,
                                                determine if tapered fillers are installed,             98057–3356; phone: 425–917–6450; fax:                  inadvertently omitted installation of
                                                and related investigative and corrective                425–917–6590; email: alan.pohl@                        tapered fillers during the repair and
                                                actions if necessary. We are proposing                  faa.gov.                                               preventive modification of certain
                                                this AD to detect and correct fatigue                                                                          longitudinal floor beam webs. Omission
                                                cracking of the upper and lower chords                  SUPPLEMENTARY INFORMATION:                             of the tapered fillers creates a preload
                                                and web of the longitudinal floor beams,                Comments Invited                                       condition that may promote undetected
                                                which could result in rapid loss of cabin                                                                      fatigue cracking and subsequent failure
                                                pressure.                                                 We invite you to send any written                    of the longitudinal floor beams at
                                                DATES: We must receive comments on                      relevant data, views, or arguments about               buttock line (BL) 24.82 and BL 45.57.
                                                this proposed AD by February 26, 2016.                  this proposed AD. Send your comments
                                                                                                        to an address listed under the                         Related Service Information Under
                                                ADDRESSES: You may send comments,                                                                              1 CFR Part 51
                                                                                                        ADDRESSES section. Include ‘‘Docket No.
                                                using the procedures found in 14 CFR
                                                                                                        FAA–2015–8131; Directorate Identifier                     We reviewed Boeing Alert Service
                                                11.43 and 11.45, by any of the following
                                                                                                        2015–NM–073–AD’’ at the beginning of                   Bulletin 737–57A1296, Revision 2,
                                                methods:
                                                                                                        your comments. We specifically invite                  dated April 1, 2015. The service
                                                   • Federal eRulemaking Portal: Go to
                                                                                                        comments on the overall regulatory,                    information describes procedures for
                                                http://www.regulations.gov. Follow the
                                                                                                        economic, environmental, and energy                    various inspections for fatigue cracks in
                                                instructions for submitting comments.
                                                                                                        aspects of this proposed AD. We will                   the longitudinal floor beam web, upper
                                                   • Fax: 202–493–2251.
                                                                                                        consider all comments received by the                  chord, and lower chord, located at the
                                                   • Mail: U.S. Department of
                                                                                                        closing date and may amend this                        applicable body stations, repairs
                                                Transportation, Docket Operations,
                                                                                                        proposed AD because of those                           (including related investigative and
                                                M–30, West Building Ground Floor,
                                                                                                        comments.                                              corrective actions), and preventive
                                                Room W12–140, 1200 New Jersey
                                                                                                          We will post all comments we                         modifications (including related
                                                Avenue SE., Washington, DC 20590.
                                                                                                                                                               investigative and corrective actions) that
                                                   • Hand Delivery: Deliver to Mail                     receive, without change, to http://
                                                                                                        www.regulations.gov, including any                     terminate the repetitive inspections. The
                                                address above between 9 a.m. and 5
                                                                                                        personal information you provide. We                   service information also describes
                                                p.m., Monday through Friday, except                                                                            procedures for an inspection to
                                                Federal holidays.                                       will also post a report summarizing each
                                                                                                        substantive verbal contact we receive                  determine if tapered fillers are installed,
                                                   For service information identified in                                                                       and related investigative and corrective
                                                this proposed rule, contact Boeing                      about this proposed AD.
                                                                                                                                                               actions. This service information is
                                                Commercial Airplanes, Attention: Data                   Discussion                                             reasonably available because the
                                                & Services Management, P.O. Box 3707,                                                                          interested parties have access to it
                                                MC 2H–65, Seattle, WA 98124–2207;                         On February 20, 2008, we issued AD
                                                                                                                                                               through their normal course of business
                                                telephone 206–544–5000, extension 1;                    2008–05–06, Amendment 39–15400 (73
                                                                                                                                                               or by the means identified in the
                                                fax 206–766–5680; Internet https://                     FR 11538, March 4, 2008), for certain
                                                                                                                                                               ADDRESSES section of this NPRM.
                                                www.myboeingfleet.com. You may view                     The Boeing Company Model 737–100,
                                                this referenced service information at                  –200, –300, –400, and –500 series                      FAA’s Determination
                                                the FAA, Transport Airplane                             airplanes. AD 2008–05–06 requires                        We are proposing this AD because we
                                                Directorate, 1601 Lind Avenue SW.,                      repetitive inspections for fatigue                     evaluated all the relevant information
                                                Renton, WA. For information on the                      cracking in the longitudinal floor beam                and determined the unsafe condition
                                                availability of this material at the FAA,               web, upper chord, and lower chord                      described previously is likely to exist or
                                                call 425–227–1221. It is also available                 located at certain body stations, and                  develop in other products of these same
                                                on the Internet at http://                              repair if necessary. AD 2008–05–06                     type designs.
                                                www.regulations.gov by searching for                    refers to Boeing Service Bulletin 737–
                                                and locating Docket No. FAA–2015–                       57–1296, dated June 13, 2007, as an                    Proposed AD Requirements
                                                8131.                                                   appropriate source of service                            This proposed AD would retain all
                                                                                                        information for accomplishing the                      requirements of AD 2008–05–06,
                                                Examining the AD Docket                                 required actions. AD 2008–05–06                        Amendment 39–15400 (73 FR 11538,
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                                                  You may examine the AD docket on                      resulted from reports of cracks in the                 March 4, 2008). This proposed AD
                                                the Internet at http://                                 center wing box longitudinal floor                     would also require accomplishing the
                                                www.regulations.gov by searching for                    beams, upper chord, and lower chord.                   actions specified in the service
                                                and locating Docket No. FAA–2015–                       We issued AD 2008–05–06 to detect and                  information described previously,
                                                8131; or in person at the Docket                        correct fatigue cracking of the upper and              except as discussed under ‘‘Differences
                                                Management Facility between 9 a.m.                      lower chords and web of the                            Between this Proposed AD and the
                                                and 5 p.m., Monday through Friday,                      longitudinal floor beams, which could                  Service Information.’’ For information
                                                except Federal holidays. The AD docket                  result in rapid loss of cabin pressure.                on the procedures and compliance


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                                                                              Federal Register / Vol. 81, No. 7 / Tuesday, January 12, 2016 / Proposed Rules                                                                    1347

                                                times, see this service information at                                  REVISED PARAGRAPH IDENTIFIERS                        2015. The procedures for inspections
                                                http://www.regulations.gov by searching                                                                                      and corrective actions specified in
                                                for and locating Docket No. FAA–2015–                                  Requirement in AD                                     Boeing Alert Service Bulletin 737–
                                                8131.                                                                     2008–05–06,               Corresponding            57A1296, Revision 2, dated April 1,
                                                                                                                        Amendment 39–             requirement in this
                                                   The phrase ‘‘related investigative                                 15400 (73 FR 11538,            proposed AD             2015, do not apply to these airplanes
                                                actions’’ is used in this proposed AD.                                   March 4, 2008)                                      (line numbers 1 through 291).
                                                ‘‘Related investigative actions’’ are
                                                                                                                                                                             Differences Between This Proposed AD
                                                follow-on actions that (1) are related to                                   paragraph (f)               paragraph (g)
                                                                                                                            paragraph (g)               paragraph (h)        and the Service Information
                                                the primary action, and (2) further
                                                investigate the nature of any condition                                                                                         Boeing Alert Service Bulletin 737–
                                                found. Related investigative actions in                                  In addition, airplane groups identified             57A1296, Revision 2, dated April 1,
                                                an AD could include, for example,                                     in Boeing Service Bulletin 737–57–                     2015, specifies to contact the
                                                inspections.                                                          1296, dated June 13, 2007, which is                    manufacturer for instructions on how to
                                                   The phrase ‘‘corrective actions’’ is                               referred to as the appropriate source of               repair certain conditions, but this
                                                used in this proposed AD. ‘‘Corrective                                service information for accomplishing                  proposed AD would require repairing
                                                actions’’ are actions that correct or                                 the actions required by AD 2008–05–06,                 those conditions in one of the following
                                                address any condition found. Corrective                               Amendment 39–15400 (73 FR 11538,                       ways:
                                                actions in an AD could include, for                                   March 4, 2008), do not, in all cases,                     • In accordance with a method that
                                                example, repairs.                                                     match the airplane groups for Boeing                   we approve; or
                                                                                                                      Alert Service Bulletin 737–57A1296,                       • Using data that meet the
                                                Formatting and Other Changes Between                                  Revision 2, dated April 1, 2015, which                 certification basis of the airplane, and
                                                AD 2008–05–06, Amendment 39–15400                                     is the appropriate source of service                   that have been approved by the Boeing
                                                (73 FR 11538, March 4, 2008) and This                                 information for accomplishing the new                  Commercial Airplanes Organization
                                                Proposed AD                                                           actions specified in this proposed AD.                 Designation Authorization (ODA) whom
                                                  Since AD 2008–05–06, Amendment                                         Also, operators of Group 5 airplanes                we have authorized to make those
                                                39–15400 (73 FR 11538, March 4, 2008),                                identified in Boeing Alert Service                     findings.
                                                was issued, the AD format has been                                    Bulletin 737–57A1296, Revision 2,
                                                revised, and certain paragraphs have                                  dated April 1, 2015, must contact the                  Costs of Compliance
                                                been rearranged. As a result, the                                     FAA for actions instead of                                We estimate that this proposed AD
                                                corresponding paragraph identifiers                                   accomplishing the actions specified in                 affects 652 airplanes of U.S. registry.
                                                have been redesignated in this proposed                               Boeing Alert Service Bulletin 737–                        We estimate the following costs to
                                                AD, as listed in the following table:                                 57A1296, Revision 2, dated April 1,                    comply with this proposed AD:

                                                                                                                                  ESTIMATED COSTS
                                                                                                                                                                                                                   Cost on U.S. opera-
                                                                       Action                                                 Labor cost                        Parts cost          Cost per product                      tors

                                                Inspections [retained actions from AD                      Up to 25 work-hours × $85 per hour =                              $0   $2,125 per inspec-               $1,385,500 per in-
                                                  2008–05–06, Amendment 39–15400                             $2,125 per inspection cycle.                                           tion cycle.                      spection cycle.
                                                  (73 FR 11538, March 4, 2008)].
                                                Tapered filler inspection [new proposed                    4 work-hours × $85 per hour = $340 .....                          0    $340 .......................     $221,680.
                                                  action].



                                                  We estimate the following costs to do                               required based on the results of the                   determining the number of aircraft that
                                                any necessary repairs that would be                                   proposed inspection. We have no way of                 might need these repairs:

                                                                                                                               ON-CONDITION COSTS
                                                                             Action                                                        Labor cost                             Parts cost                     Cost per product

                                                Floor beam repair and optional preventative                            Up to 198 work-hours × $85 per hour =                                    [1]   Up to $16,830.
                                                  modification.                                                          $16,830.
                                                Tapered filler repair .............................................    174 work-hours × $85 per hour = $14,790 ......                           [1]   $14,790.
                                                   [1]   We have received no definitive data that would enable us to provide parts cost estimates for the actions specified in this proposed AD.


                                                Authority for This Rulemaking                                         Part A, Subpart III, Section 44701,                    products identified in this rulemaking
                                                                                                                      ‘‘General requirements.’’ Under that                   action.
                                                  Title 49 of the United States Code
                                                                                                                      section, Congress charges the FAA with                 Regulatory Findings
                                                specifies the FAA’s authority to issue
                                                rules on aviation safety. Subtitle I,                                 promoting safe flight of civil aircraft in
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                                                                                                                      air commerce by prescribing regulations                  We have determined that this
                                                Section 106, describes the authority of                                                                                      proposed AD would not have federalism
                                                the FAA Administrator. Subtitle VII,                                  for practices, methods, and procedures
                                                                                                                                                                             implications under Executive Order
                                                Aviation Programs, describes in more                                  the Administrator finds necessary for
                                                                                                                                                                             13132. This proposed AD would not
                                                detail the scope of the Agency’s                                      safety in air commerce. This regulation
                                                                                                                                                                             have a substantial direct effect on the
                                                authority.                                                            is within the scope of that authority                  States, on the relationship between the
                                                  We are issuing this rulemaking under                                because it addresses an unsafe condition               national Government and the States, or
                                                the authority described in Subtitle VII,                              that is likely to exist or develop on                  on the distribution of power and


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                                                1348                    Federal Register / Vol. 81, No. 7 / Tuesday, January 12, 2016 / Proposed Rules

                                                responsibilities among the various                      and correct fatigue cracking of the upper and          Service Bulletin 737–57–1296, dated June 13,
                                                levels of government.                                   lower chords and web of the longitudinal               2007, except where Boeing Service Bulletin
                                                  For the reasons discussed above, I                    floor beams, which could result in rapid loss          737–57–1296, dated June 13, 2007, specifies
                                                certify that the proposed regulation:                   of cabin pressure.                                     a compliance time after the date on the
                                                                                                                                                               service bulletin, this AD requires compliance
                                                  (1) Is not a ‘‘significant regulatory                 (f) Compliance
                                                                                                                                                               within the specified compliance time after
                                                action’’ under Executive Order 12866,                      Comply with this AD within the                      April 8, 2008 (the effective date of AD 2008–
                                                  (2) Is not a ‘‘significant rule’’ under               compliance times specified, unless already             05–06, Amendment 39–15400 (73 FR 11538,
                                                the DOT Regulatory Policies and                         done.                                                  March 4, 2008)). Repeat the inspections
                                                Procedures (44 FR 11034, February 26,                                                                          thereafter at the intervals specified in
                                                                                                        (g) Retained Inspections With Revised
                                                1979),                                                  Service Information and Revised Affected               paragraph 1.E., ‘‘Compliance,’’ of Boeing
                                                  (3) Will not affect intrastate aviation               Airplanes                                              Service Bulletin 737–57–1296, dated June 13,
                                                in Alaska, and                                                                                                 2007.
                                                                                                           This paragraph restates the requirements of
                                                  (4) Will not have a significant                       paragraph (f) of AD 2008–05–06, Amendment              (h) Retained Repair Instructions With
                                                economic impact, positive or negative,                  39–15400 (73 FR 11538, March 4, 2008), with            Revised Service Information That Contains
                                                on a substantial number of small entities               revised service information and revised                New Repair Actions
                                                under the criteria of the Regulatory                    affected airplanes. For Groups 1 through 4                This paragraph restates the requirements of
                                                Flexibility Act.                                        airplanes identified in Boeing Alert Service           paragraph (g) of AD 2008–05–06,
                                                                                                        Bulletin 737–57A1296, Revision 2, dated                Amendment 39–15400 (73 FR 11538, March
                                                List of Subjects in 14 CFR Part 39                      April 1, 2015, do the various inspections for          4, 2008), with revised service information
                                                  Air transportation, Aircraft, Aviation                fatigue cracks in the longitudinal floor beam          that contains new repair actions. If any crack
                                                safety, Incorporation by reference,                     web, upper chord, and lower chord, located             is found during any inspection required by
                                                Safety.                                                 at the applicable body stations specified in           paragraph (g) of this AD, do the applicable
                                                                                                        the Accomplishment Instructions of Boeing              actions specified in paragraph (h)(1) or (h)(2)
                                                The Proposed Amendment                                  Service Bulletin 737–57–1296, dated June 13,           of the AD.
                                                                                                        2007; or Boeing Alert Service Bulletin 737–               (1) For inspections done using Boeing
                                                  Accordingly, under the authority                      57A1296, Revision 2, dated April 1, 2015; by           Service Bulletin 737–57–1296, dated June 13,
                                                delegated to me by the Administrator,                   doing all the actions in accordance with the           2007: If any crack is found during any
                                                the FAA proposes to amend 14 CFR part                   Accomplishment Instructions of Boeing                  inspection required by paragraph (g) of this
                                                39 as follows:                                          Service Bulletin 737–57A1296, dated June               AD, and Boeing Service Bulletin 737–57–
                                                                                                        13, 2007; or Boeing Alert Service Bulletin             1296, dated June 13, 2007, specifies
                                                PART 39—AIRWORTHINESS                                   737–57A1296, Revision 2, dated April 1,                contacting Boeing for repair instructions:
                                                DIRECTIVES                                              2015; except as provided by paragraph (h) of           Before further flight, repair using a method
                                                                                                        this AD. Do the inspections at the time                approved in accordance with the procedures
                                                ■ 1. The authority citation for part 39                 specified in paragraph (g)(1) or (g)(2) of this        specified in paragraph (n) of this AD.
                                                continues to read as follows:                           AD, as applicable. As of the effective date of            (2) For inspections done using Boeing Alert
                                                                                                        this AD, only use Boeing Alert Service                 Service Bulletin 737–57A1296, Revision 2,
                                                    Authority: 49 U.S.C. 106(g), 40113, 44701.          Bulletin 737–57A1296, Revision 2, dated                dated April 1, 2015: If any crack is found
                                                § 39.13   [Amended]                                     April 1, 2015, for accomplishing the actions           during any inspection required by paragraph
                                                                                                        required by this paragraph.                            (g) of this AD, before further flight, repair,
                                                ■ 2. The FAA amends § 39.13 by                             Note 1 to paragraphs (g) and (h) of this AD:        including doing all applicable related
                                                removing Airworthiness Directive (AD)                   The airplane groups identified in Boeing               investigative actions and corrective actions,
                                                2008–05–06, Amendment 39–15400 (73                      Service Bulletin 737–57–1296, dated June 13,           in accordance with the Accomplishment
                                                FR 11538, March 4, 2008), and adding                    2007, do not, in all cases, match the airplane         Instructions of Boeing Alert Service Bulletin
                                                the following new AD:                                   groups identified in Boeing Alert Service              737–57A1296, Revision 2, dated April 1,
                                                                                                        Bulletin 737–57A1296, Revision 2, dated                2015; except where Boeing Alert Service
                                                The Boeing Company: Docket No. FAA–
                                                                                                        April 1, 2015 (Group 4 airplanes in Boeing             Bulletin 737–57A1296, Revision 2, dated
                                                    2015–8131; Directorate Identifier 2015–
                                                                                                        Alert Service Bulletin 737–57A1296,                    April 1, 2015, specifies contacting Boeing for
                                                    NM–073–AD.
                                                                                                        Revision 2, dated April 1, 2015 coincide with          repair instructions, before further flight,
                                                (a) Comments Due Date                                   certain Group 2 airplanes in Boeing Service            repair using a method approved in
                                                                                                        Bulletin 737–57–1296, dated June 13, 2007).            accordance with the procedures specified in
                                                  The FAA must receive comments on this
                                                                                                           (1) For Groups 1 and 2 airplanes, except for        paragraph (n) of this AD. Accomplishing a
                                                AD action by February 26, 2016.
                                                                                                        line numbers 1 through 291, identified in              repair specified in Boeing Alert Service
                                                (b) Affected ADs                                        Boeing Service Bulletin 737–57–1296, dated             Bulletin 737–57A1296, Revision 2, dated
                                                   This AD replaces AD 2008–05–06,                      June 13, 2007: Do the inspections at the               April 1, 2015, terminates the repetitive
                                                Amendment 39–15400 (73 FR 11538, March                  applicable initial compliance time listed in           inspections required by paragraph (g) of this
                                                4, 2008).                                               paragraph 1.E., ‘‘Compliance,’’ of Boeing              AD for the repaired area only.
                                                                                                        Service Bulletin 737–57–1296, dated June 13,
                                                (c) Applicability                                       2007, except where Boeing Service Bulletin             (i) New Requirement of This AD: Inspection
                                                                                                        737–57–1296, dated June 13, 2007, specifies            for Tapered Fillers for Certain Airplanes,
                                                   This AD applies to The Boeing Company
                                                                                                        a compliance time after the date on the                Related Investigative Actions, and
                                                Model 737–100, –200, –300, –400, and –500
                                                                                                        service bulletin, this AD requires compliance          Corrective Actions
                                                series airplanes; certificated in any category;
                                                as identified in Boeing Alert Service Bulletin          within the specified compliance time after                For Groups 1 through 4, Configuration 1
                                                737–57A1296, Revision 2, dated April 1,                 April 8, 2008 (the effective date of AD 2008–          airplanes identified in Boeing Alert Service
                                                2015.                                                   05–06, Amendment 39–15400 (73 FR 11538,                Bulletin 737–57A1296, Revision 2, dated
                                                                                                        March 4, 2008)). Repeat the inspections                April 1, 2015: Except as provided by
                                                (d) Subject                                             thereafter at the intervals specified in               paragraph (k) of this AD, at the applicable
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                                                  Air Transport Association (ATA) of                    paragraph 1.E., ‘‘Compliance,’’ of Boeing              time specified in table 5 of paragraph 1.E.,
                                                America Code 57, Wings.                                 Service Bulletin 737–57–1296, dated June 13,           ‘‘Compliance,’’ of Boeing Alert Service
                                                                                                        2007.                                                  Bulletin 737–57A1296, Revision 2, dated
                                                (e) Unsafe Condition                                       (2) For Group 3 airplanes identified in             April 1, 2015, do an inspection to determine
                                                   This AD was prompted by results from                 Boeing Service Bulletin 737–57–1296, dated             if tapered fillers are installed; and do all
                                                reports of cracks in the center wing box                June 13, 2007: Do the inspections at the               applicable related investigative and
                                                longitudinal floor beams, upper chord, and              applicable initial compliance time listed in           corrective actions; in accordance with the
                                                lower chord. We are issuing this AD to detect           paragraph 1.E., ‘‘Compliance,’’ of Boeing              Accomplishment Instructions of Boeing Alert



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                                                                        Federal Register / Vol. 81, No. 7 / Tuesday, January 12, 2016 / Proposed Rules                                                      1349

                                                Service Bulletin 737–57A1296, Revision 2,               or local Flight Standards District Office, as          ACTION:Request for public comments on
                                                dated April 1, 2015; except where Boeing                appropriate. If sending information directly           proposed amendments.
                                                Alert Service Bulletin 737–57A1296,                     to the manager of the ACO, send it to the
                                                Revision 2, dated April 1, 2015, specifies              attention of the person identified in                  SUMMARY:    The Federal Trade
                                                contacting Boeing for repair instructions,              paragraph (o)(1) of this AD. Information may           Commission (‘‘FTC’’ or ‘‘Commission’’)
                                                before further flight, repair using a method            be emailed to: 9-ANM-Seattle-ACO-AMOC-                 proposes revisions to its Guides for the
                                                approved in accordance with the procedures              Requests@faa.gov.
                                                specified in paragraph (n) of this AD. Do all
                                                                                                                                                               Jewelry, Precious Metals, and Pewter
                                                                                                           (2) Before using any approved AMOC,
                                                applicable related investigative and                    notify your appropriate principal inspector,           Industries (‘‘Jewelry Guides’’ or
                                                corrective actions before further flight. A             or lacking a principal inspector, the manager          ‘‘Guides’’). The proposed revisions aim
                                                review of the maintenance records is                    of the local flight standards district office/         to respond to changes in the
                                                acceptable in lieu of this inspection if the            certificate holding district office.                   marketplace and help marketers avoid
                                                installation of tapered fillers can be                     (3) An AMOC that provides an acceptable             deceptive and unfair practices. This
                                                conclusively determined from that review.               level of safety may be used for any repair,            document summarizes the
                                                (j) New Requirement of This AD: Inspections             modification, or alteration required by this           Commission’s proposed revisions to the
                                                and Corrective Actions for Group 5                      AD if it is approved by the Boeing                     Guides and includes the proposed
                                                                                                        Commercial Airplanes Organization
                                                Airplanes                                                                                                      revised Guides.
                                                                                                        Designation Authorization (ODA) that has
                                                   For Group 5 airplanes identified in Boeing           been authorized by the Manager, Seattle                DATES: Comments must be received on
                                                Alert Service Bulletin 737–57A1296,                     ACO, to make those findings. To be                     or before April 4, 2016.
                                                Revision 2, dated April 1, 2015: Except as              approved, the repair method, modification              ADDRESSES: Readers can find the
                                                provided by paragraph (k) of this AD, at the            deviation, or alteration deviation must meet
                                                applicable time specified in paragraph 1.E.,                                                                   Commission’s complete analysis in the
                                                                                                        the certification basis of the airplane and the
                                                ‘‘Compliance,’’ of Boeing Alert Service                                                                        Statement of Basis and Purpose
                                                                                                        approval must specifically refer to this AD.
                                                Bulletin 737–57A1296, Revision 2, dated                    (4) AMOCs approved as specified in the              (‘‘Statement’’) on the FTC’s Web site at
                                                April 1, 2015: Accomplish inspections and               fourth paragraph (related to AD 2008–05–06)            https://www.ftc.gov/public-statements/
                                                applicable corrective actions using a method            of Section 1.F., Approval, of Boeing Service           2015/12/statement-basis-purpose-
                                                approved in accordance with the procedures              Bulletin 737–57–1296, Revision 1, dated                proposed-revisions-jewelry-guides. The
                                                specified in paragraph (n) of this AD.                  September 26, 2012, for repairs and                    Commission seeks comments on these
                                                (k) Exception to Service Information                    modifications are not approved for any                 proposed revisions and other issues
                                                                                                        provision of this AD. All other AMOCs                  raised in this document. Interested
                                                  Where paragraph 1.E., ‘‘Compliance,’’ of
                                                                                                        approved for AD 2008–05–06, Amendment                  parties may file a comment online or on
                                                Boeing Alert Service Bulletin 737–57A1296,
                                                                                                        39–15400 (73 FR 11538, March 4, 2008), are
                                                Revision 2, dated April 1, 2015, specifies a                                                                   paper, by following the instructions in
                                                                                                        approved as AMOCs for the corresponding
                                                compliance time ‘‘after the Revision 2 date of                                                                 the Request for Comment part of the
                                                                                                        provisions of this AD.
                                                this service bulletin,’’ this AD requires                                                                      SUPPLEMENTARY INFORMATION section
                                                compliance within the specified compliance              (o) Related Information                                below. Write ‘‘Jewelry Guides, 16 CFR
                                                time ‘‘after the effective date of this AD.’’
                                                                                                           (1) For more information about this AD,             part 23, Project No. G711001’’ on your
                                                (l) Optional Terminating Action                         contact Alan Pohl, Aerospace Engineer,                 comment, and file your comment online
                                                   Accomplishing the applicable preventative            Airframe Branch, ANM–120S, FAA, Seattle                at https://ftcpublic.commentworks.com/
                                                modification specified in paragraph 3.B.4., ’’          Aircraft Certification Office, 1601 Lind               ftc/jewelryguidesreview, by following
                                                Preventive Modification’’ of the                        Avenue SW., Renton, WA 98057–3356;
                                                                                                                                                               the instructions on the web-based form.
                                                Accomplishment Instructions of Boeing Alert             phone: 425–917–6450; fax: 425–917–6590;
                                                                                                        email: alan.pohl@faa.gov.                              If you prefer to file your comment on
                                                Service Bulletin 737–57A1296, Revision 2,                                                                      paper, mail your comment to the
                                                dated April 1, 2015, terminates the                        (2) For service information identified in
                                                                                                        this AD, contact Boeing Commercial                     following address: Federal Trade
                                                applicable repetitive inspection required by
                                                paragraph (g) of this AD. The preventative              Airplanes, Attention: Data & Services                  Commission, Office of the Secretary,
                                                modification, including related investigative           Management, P.O. Box 3707, MC 2H–65,                   600 Pennsylvania Avenue NW., Suite
                                                and corrective actions, must be done in                 Seattle, WA 98124–2207; telephone 206–                 CC–5610 (Annex O), Washington, DC
                                                accordance with the Accomplishment                      544–5000, extension 1; fax 206–766–5680;               20580, or deliver your comment to the
                                                Instructions of Boeing Alert Service Bulletin           Internet https://www.myboeingfleet.com. You            following address: Federal Trade
                                                737–57A1296, Revision 2, dated April 1,                 may view this referenced service information
                                                                                                                                                               Commission, Office of the Secretary,
                                                2015; except where Boeing Alert Service                 at the FAA, Transport Airplane Directorate,
                                                                                                        1601 Lind Avenue SW., Renton, WA. For                  Constitution Center, 400 7th Street SW.,
                                                Bulletin 737–57A1296, Revision 2, dated
                                                                                                        information on the availability of this                5th Floor, Suite 5610 (Annex O),
                                                April 1, 2015, specifies contacting Boeing for
                                                repair instructions, before further flight,             material at the FAA, call 425–227–1221.                Washington, DC 20024.
                                                repair using a method approved in                         Issued in Renton, Washington, on                     FOR FURTHER INFORMATION CONTACT:
                                                accordance with the procedures specified in             December 21, 2015.                                     Reenah L. Kim, Attorney, (202) 326–
                                                paragraph (n) of this AD.                                                                                      2272, Division of Enforcement, Bureau
                                                                                                        Michael Kaszycki,
                                                (m) Credit for Previous Actions                         Acting Manager, Transport Airplane                     of Consumer Protection, Federal Trade
                                                  This paragraph provides credit for actions            Directorate, Aircraft Certification Service.           Commission, 600 Pennsylvania Avenue
                                                required by paragraphs (g) and (h)(2) of this           [FR Doc. 2015–32851 Filed 1–11–16; 8:45 am]
                                                                                                                                                               NW., Washington, DC 20580.
                                                AD, if those actions were performed before              BILLING CODE 4910–13–P
                                                                                                                                                               SUPPLEMENTARY INFORMATION: In July
                                                the effective date of this AD using Boeing                                                                     2012, the Commission published a
                                                Service Bulletin 737–57–1296, Revision 1,                                                                      Federal Register notice initiating a
                                                dated September 26, 2012.                                                                                      comprehensive regulatory review of the
tkelley on DSK3SPTVN1PROD with PROPOSALS




                                                (n) Alternative Methods of Compliance                   FEDERAL TRADE COMMISSION                               Jewelry Guides.1 As part of this review,
                                                (AMOCs)
                                                  (1) The Manager, Seattle Aircraft                     16 CFR Part 23                                            1 77 FR 39201 (July 2, 2012). The Commission

                                                                                                                                                               issues industry guides to help the industry conform
                                                Certification Office (ACO), FAA, has the
                                                                                                        Guides for the Jewelry, Precious                       with legal requirements. 16 CFR part 17. Industry
                                                authority to approve AMOCs for this AD, if                                                                     guides are administrative interpretations of the law;
                                                requested using the procedures found in 14              Metals, and Pewter Industries                          they do not have the force of law and are not
                                                CFR 39.19. In accordance with 14 CFR 39.19,                                                                    independently enforceable. Failure to follow
                                                send your request to your principal inspector           AGENCY:    Federal Trade Commission.                                                               Continued




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Document Created: 2016-01-12 01:23:16
Document Modified: 2016-01-12 01:23:16
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 February 26, 2016.
ContactAlan Pohl, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6450; fax: 425-917-6590; email: [email protected]
FR Citation81 FR 1345 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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