80 FR 8568 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 80, Issue 32 (February 18, 2015)

Page Range		8568-8571
FR Document		2015-02925
We propose to supersede Airworthiness Directive (AD) 2012-24- 10, which applies to certain The Boeing Company Model 747-400 and -400F series airplanes. AD 2012-24-10 currently requires installing new software, replacing the duct assembly with a new duct assembly, making wiring changes, and routing certain wire bundles. Since we issued AD 2012-24-10, we have received new reports of intermittent or blank displays of a certain integrated display unit (IDU) that were due to an intermittent false ground not addressed by the software installation or wiring changes required by AD 2012-24-10. This proposed AD would retain the requirements of AD 2012-24-10 and would require installing a new or serviceable pressure switch bracket and altitude pressure switch, and add an airplane to the applicability of the existing AD. We are proposing this AD to prevent IDU malfunctions, which could affect the ability of the flightcrew to read primary displays for airplane attitude, altitude, or airspeed, and consequently reduce the ability of the flightcrew to maintain control of the airplane.
Federal Register, Volume 80 Issue 32 (Wednesday, February 18, 2015)
[Federal Register Volume 80, Number 32 (Wednesday, February 18, 2015)]
[Proposed Rules]
[Pages 8568-8571]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2015-02925]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-0245; Directorate Identifier 2014-NM-135-AD]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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[[Page 8569]]

SUMMARY: We propose to supersede Airworthiness Directive (AD) 2012-24-
10, which applies to certain The Boeing Company Model 747-400 and -400F 
series airplanes. AD 2012-24-10 currently requires installing new 
software, replacing the duct assembly with a new duct assembly, making 
wiring changes, and routing certain wire bundles. Since we issued AD 
2012-24-10, we have received new reports of intermittent or blank 
displays of a certain integrated display unit (IDU) that were due to an 
intermittent false ground not addressed by the software installation or 
wiring changes required by AD 2012-24-10. This proposed AD would retain 
the requirements of AD 2012-24-10 and would require installing a new or 
serviceable pressure switch bracket and altitude pressure switch, and 
add an airplane to the applicability of the existing AD. We are 
proposing this AD to prevent IDU malfunctions, which could affect the 
ability of the flightcrew to read primary displays for airplane 
attitude, altitude, or airspeed, and consequently reduce the ability of 
the flightcrew to maintain control of the airplane.

DATES: We must receive comments on this proposed AD by April 6, 2015.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
Boeing Commercial Airplanes, Attention: Data & Services Management, 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-
0245.

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-
0245; 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: Ana Martinez Hueto, Aerospace 
Engineer, Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, 
Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., 
Renton, WA 98057-3356; phone: 425-917-6592; fax: 425-917-6591; 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-2015-0245; 
Directorate Identifier 2014-NM-135-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 November 30, 2012, we issued AD 2012-24-10, Amendment 39-17280 
(77 FR 73908, December 12, 2012), for certain The Boeing Company Model 
747-400 and -400F series airplanes. AD 2012-24-10 requires installing 
new software, replacing the duct assembly with a new duct assembly, 
making wiring changes, and routing certain wire bundles. AD 2012-24-10 
resulted from multiple reports of integrated display unit (IDU) 
malfunctions and mode control panel (MCP) malfunctions. We issued AD 
2012-24-10 to prevent IDU malfunctions, which could affect the ability 
of the flightcrew to read primary displays for airplane attitude, 
altitude, or airspeed, and consequently reduce the ability of the 
flightcrew to maintain control of the airplane.

Actions Since AD 2012-24-10, Amendment 39-17280 (77 FR 73908, December 
12, 2012), Was Issued

    Since we issued AD 2012-24-10, Amendment 39-17280 (77 FR 73908, 
December 12, 2012), we have received reports of intermittent or blank 
displays of a certain IDU in the flight deck that were due to an 
intermittent false ground not addressed by the software installation or 
wiring changes required by AD 2012-24-10. The false ground exists on 
the 25,000 foot altitude analog/discrete signal of the environmental 
control systems miscellaneous card, which is a signal that is 
transmitted to the pack temperature controller. This false ground 
creates a potential to circumvent the control logic by allowing the 3-
way valve to switch air sources before an aircraft reaches an altitude 
of 25,000 feet, defeating the intent of the corrective actions of AD 
2012-24-10.
    We have determined that the installation of a pressure switch 
bracket and an altitude pressure switch is needed on the forward side 
of the station 400 bulkhead to achieve an adequate level of safety. The 
installation of the altitude pressure switch would change the operating 
logic for the three-way valve, so that the source for equipment cooling 
air is changed as the airplane transitions through an altitude of 
25,000 feet. Since we issued AD 2012-24-10, Boeing issued Special 
Attention Service Bulletin 747-21-2532; and Special Attention Service 
Bulletin 747-21-2533; both dated February 13, 2014; which contain 
procedures for installing the pressure switch bracket and altitude 
pressure switch discussed previously.
    Since we issued AD 2012-24-10, Amendment 39-17280 (77 FR 73908, 
December 12, 2012), Boeing also issued a revision to Boeing Alert 
Service Bulletin 747-21A2523, Revision 1, dated October 3, 2011 (which 
was referenced as a source of service information in AD 2012-24-10). 
Boeing Alert Service Bulletin 747-21A2523, Revision 2, dated June 7, 
2013, was issued to correct wiring instructions for 747-400BCF 
airplanes that provide crew rest heat below a 25,000 foot altitude, and 
to add an airplane configuration having variable number RT061 as Group 
21 to the effectivity. The airplane that was added was recently 
converted from a passenger to a freighter configuration, which this 
proposed AD addresses. Since this

[[Page 8570]]

proposed AD adds this new airplane group to the applicability, we have 
added paragraph (j) to this proposed AD, which provides new compliance 
times for Group 21 airplanes.

Related Service Information Under 1 CFR Part 51

    Boeing issued Boeing Alert Service Bulletin 747-21A2523, Revision 
2, dated June 7, 2013. This service information describes procedures 
for changing the wiring and operating logic of the equipment cooling 
three-way valve and replacing the existing duct assembly with a new 
duct assembly on the main distribution manifold of the air conditioning 
system.
    Boeing also issued Boeing Special Attention Service Bulletin 747-
21-2532, dated February 13, 2014. This service information describes 
procedures for installing an altitude pressure switch on the forward 
side of the station 400 bulkhead for the three-way valve of the 
equipment cooling system. Boeing also issued Boeing Special Attention 
Service Bulletin 747-21-2533, dated February 13, 2014. This service 
information describes procedures for adding a second altitude signal to 
the switching logic for the three-way valve to provide a second, 
independent, altitude signal for the equipment cooling system.
    For information on the procedures and compliance times, see this 
service information. This service information is reasonably available; 
see ADDRESSES for ways to access this service information.

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 of the requirements of AD 2012-
24-10, Amendment 39-17280 (77 FR 73908, December 12, 2012.) This 
proposed AD would also require installing a pressure switch bracket and 
altitude pressure switch, and would add an airplane to the 
applicability.

Costs of Compliance

    We estimate that this proposed AD affects 33 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Duct assembly and replacement wiring    44 work-hours x $85 per          $20,121         $23,861        $787,413
 changes (retained actions from AD       hour = $3,740.
 2012-24-10, Amendment 39-17280 (77 FR
 73908, December 12, 2012).
Software changes (retained actions      3 work-hours x $85 per                 0             255           8,415
 from AD 2012-24-10, Amendment 39-       hour = $255.
 17280 (77 FR 73908, December 12,
 2012).
Altitude pressure switch installation   13 work-hours x $85 per            5,230           6,335         209,055
 (new proposed action).                  hour = $1,105.
----------------------------------------------------------------------------------------------------------------

    According to the manufacturer, some of the costs of this proposed 
AD may be covered under warranty, thereby reducing the cost impact on 
affected individuals. We do not control warranty coverage for affected 
individuals. As a result, we have included all costs in our cost 
estimate.

Authority for This Rulemaking

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

Regulatory Findings

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

List of Subjects in 14 CFR Part 39

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

The Proposed Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by removing Airworthiness Directive (AD) 
2012-24-10, Amendment 39-17280 (77 FR 73908, December 12, 2012), and 
adding the following new AD:

The Boeing Company: Docket No. FAA-2015-0245; Directorate Identifier 
2014-NM-135-AD.

(a) Comments Due Date

    The FAA must receive comments on this AD action by April 6, 
2015.

[[Page 8571]]

(b) Affected ADs

    This AD replaces AD 2012-24-10, Amendment 39-17280 (77 FR 73908, 
December 12, 2012).

(c) Applicability

    This AD applies to The Boeing Company Model 747-400 and -400F 
series airplanes, certificated in any category, as identified in 
Boeing Alert Service Bulletin 747-21A2523, Revision 2, dated June 7, 
2013.

(d) Subject

    Air Transport Association (ATA) of America Code 21, Air 
Conditioning; 31, Instruments.

(e) Unsafe Condition

    This AD was prompted by reports of intermittent or blank 
displays of a certain integrated display unit (IDU) in the flight 
deck. We are issuing this AD to prevent IDU malfunctions, which 
could affect the ability of the flightcrew to read primary displays 
for airplane attitude, altitude, or airspeed, and consequently 
reduce the ability of the flightcrew to maintain control of the 
airplane.

(f) Compliance

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

(g) Retained Software Update

    This paragraph restates the requirements of paragraph (g) of AD 
2012-24-10, Amendment 39-17280 (77 FR 73908, December 12, 2012), 
with revised service information. Within 12 months after January 16, 
2013 (the effective date of AD 2012-24-10), except as provided by 
paragraph (j) of this AD: Install integrated display system 
software, in accordance with the Accomplishment Instructions of 
Boeing Alert Service Bulletin 747-21A2523, Revision 1, dated October 
3, 2011; or Boeing Alert Service Bulletin 747-21A2523, Revision 2, 
dated June 7, 2013. As of the effective date of this AD, only Boeing 
Alert Service Bulletin 747-21A2523, Revision 2, dated June 7, 2013, 
may be used to accomplish the actions required by this paragraph.
    Note 1 to paragraph (g) and (j) of this AD: Boeing Alert Service 
Bulletin 747-21A2523, Revision 1, dated October 3, 2011; and Boeing 
Alert Service Bulletin 747-21A2523, Revision 2, dated June 7, 2013; 
refer to Boeing Service Bulletin 747-31-2426, dated July 29, 2010 
(for airplanes with Rolls-Royce engines); Boeing Service Bulletin 
747-31-2427, dated July 29, 2010 (for airplanes with General 
Electric engines); and Boeing Service Bulletin 747-31-2428, dated 
July 29, 2010 (for airplanes with Pratt & Whitney engines); as 
additional sources of guidance for the software installation 
specified by paragraph (g) of this AD. Boeing Service Bulletin 747-
31-2426, dated July 29, 2010; Boeing Service Bulletin 747-31-2427, 
dated July 29, 2010; and Boeing Service Bulletin 747-31-2428, dated 
July 29, 2010; are not incorporated by reference in this AD.

(h) Retained Duct Assembly Replacement and Wiring Changes

    This paragraph restates the requirements of paragraph (h) of AD 
2012-24-10, Amendment 39-17280 (77 FR 73908, December 12, 2012), 
with revised service information. Within 60 months after January 16, 
2013 (the effective date of AD 2012-24-10), except as provided by 
paragraph (j) of this AD: Replace the duct assembly with a new duct 
assembly, do wiring changes, and route certain wire bundles, in 
accordance with the Accomplishment Instructions of Boeing Alert 
Service Bulletin 747-21A2523, Revision 1, dated October 3, 2011; or 
Boeing Alert Service Bulletin 747-21A2523, Revision 2, dated June 7, 
2013. As of the effective date of this AD, only Boeing Alert Service 
Bulletin 747-21A2523, Revision 2, dated June 7, 2013, may be used to 
accomplish the actions required by this paragraph.

(i) New Installation of Pressure Switch Bracket and Altitude Pressure 
Switch

    Within 60 months after the effective date of this AD: Install a 
new or serviceable pressure switch bracket and a new or serviceable 
altitude pressure switch on the forward side of the station 400 
bulkhead, do wiring changes, route certain wire bundles, install a 
new hose assembly, and perform a leak check and a functional logic 
test, in accordance with the Accomplishment Instructions of the 
service information specified in paragraph (i)(1) or (i)(2) of this 
AD, as applicable.
    (1) For Model 747-400F series airplanes: Boeing Alert Service 
Bulletin 747-21-2532, dated February 13, 2014.
    (2) For Model 747-400BCF series airplanes: Boeing Alert Service 
Bulletin 747-21-2533, dated February 13, 2014.

(j) Actions for Group 21 Airplanes

    For Group 21 airplanes, as identified in Boeing Alert Service 
Bulletin 747-21A2523, Revision 2, dated June 7, 2013, do the actions 
specified in paragraphs (j)(1) and (j)(2) of this AD, in accordance 
with the Accomplishment Instructions of Boeing Alert Service 
Bulletin 747-21A2523, Revision 2, dated June 7, 2013.
    (1) Within 12 months after the effective date of this AD, 
install integrated display system software.
    (2) Within 60 months after the effective date of this AD, 
replace the duct assembly with a new duct assembly, do wiring 
changes, and route certain wire bundles.

(k) Credit for Previous Actions

    This paragraph provides credit for actions required by 
paragraphs (g) and (h) of this AD, if those actions were performed 
before the effective date of this AD using Boeing Alert Service 
Bulletin 747-21A2523, Revision 1, dated October 3, 2011.

(l) 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 (m)(1) of this AD. 
Information may be emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair required by this AD if it is approved by Boeing 
Commercial Airplanes Organization Designation Authorization (ODA) 
that has been authorized by the Manager, Seattle ACO, to make those 
findings. For a repair method to be approved, the repair must meet 
the certification basis of the airplane, and the approval must 
specifically refer to this AD.
    (4) AMOCs approved for AD 2012-24-10, Amendment 39-17280 (77 FR 
73908, December 12, 2012), are approved as AMOCs for the 
corresponding provisions of paragraphs (g) and (h) of this AD.

(m) Related Information

    (1) For more information about this AD, contact Ana Martinez 
Hueto, Aerospace Engineer, Cabin Safety and Environmental Systems 
Branch, ANM-150S, FAA, Seattle Aircraft Certification Office (ACO), 
1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6592; 
fax: 425-917-6591; 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, Washington. For information on the availability 
of this material at the FAA, call 425-227-1221.

    Issued in Renton, Washington, on February 2, 2015.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2015-02925 Filed 2-17-15; 8:45 am]
BILLING CODE 4910-13-P
8568 Federal Register / Vol. 80, No. 32 / Wednesday, February 18, 2015 / Proposed Rules

the FAA proposes to amend 14 CFR part (h) Identification of Repairs service information contains procedures or
39 as follows: If any affected repair is found during the tests that are identified as RC, those
inspection required by paragraph (g) of this procedures and tests must be done to comply
PART 39—AIRWORTHINESS AD: Before further flight, identify the with this AD; any procedures and tests that
DIRECTIVES reworked area(s), the percentage of the are not identified as RC are recommended.
rework, and the limits of the rework, in Those procedures and tests that are not
■ 1. The authority citation for part 39 accordance with the Accomplishment identified as RC may be deviated from using
continues to read as follows: Instructions of Airbus Service Bulletin A300– accepted methods in accordance with the
53–6173, Revision 01, dated February 28, operator’s maintenance or inspection
Authority: 49 U.S.C. 106(g), 40113, 44701. 2014. program without obtaining approval of an
AMOC, provided the procedures and tests
§ 39.13 [Amended] (i) Corrective Actions identified as RC can be done and the airplane
■ 2. The FAA amends § 39.13 by adding During the repair identification required by can be put back in a serviceable condition.
the following new airworthiness paragraph (h) of this AD, if any rework is Any substitutions or changes to procedures
directive (AD): found that is outside the allowable damage or tests identified as RC require approval of
limits specified in Airbus Service Bulletin an AMOC.
Airbus: Docket No. FAA–2015–0242;
A300–53–6173, Revision 01, dated February (3) Contacting the Manufacturer: For any
Directorate Identifier 2014–NM–100–AD.
28, 2014: Before further flight, rework or requirement in this AD to obtain corrective
(a) Comments Due Date repair, as applicable, using a method actions from a manufacturer, the action must
approved by the Manager, International be accomplished using a method approved
We must receive comments by April 6, Branch, ANM–116, Transport Airplane by the Manager, International Branch, ANM–
2015. Directorate, FAA; the European Aviation 116, Transport Airplane Directorate, FAA;
(b) Affected ADs Safety Agency (EASA); or Airbus’s EASA the EASA; or Airbus’s EASA DOA. If
Design Organization Approval (DOA). approved by the DOA, the approval must
None. include the DOA-authorized signature.
(j) Exception to Service Information
(c) Applicability (m) Related Information
Specifications
This AD applies to the Airbus airplanes (1) Refer to Mandatory Continuing
Although Airbus Service Bulletin A300–
identified in paragraphs (c)(1), (c)(2), and Airworthiness Information (MCAI) EASA
53–6173, Revision 01, dated February 28,
(c)(3) of this AD, certificated in any category. Airworthiness Directive 2014–0101, dated
2014, specifies to contact Airbus for repair
(1) Model A300 B4–603, B4–605R, B4–620, May 2, 2014, for related information. This
B4–622, and B4–622R airplanes, all instructions, and specifies that action as
‘‘RC’’ (Required for Compliance), this AD MCAI may be found in the AD docket on the
manufacturer serial numbers.
requires repair before further flight using a Internet at http://www.regulations.gov by
(2) Model A300 C4–605R Variant F
method approved by the Manager, searching for and locating Docket No. FAA–
airplanes, all manufacturer serial numbers.
International Branch, ANM–116, Transport 2015–0242.
(3) Model A300F4–605R airplanes, all
Airplane Directorate, FAA; EASA; or (2) For service information identified in
manufacturer serial numbers, except those on
Airbus’s EASA DOA. this AD, contact Airbus SAS, Airworthiness
which Airbus Modification 12699 was
Office—EAW, 1 Rond Point Maurice
embodied in production. (k) Credit for Previous Actions Bellonte, 31707 Blagnac Cedex, France;
(d) Subject This paragraph provides credit for the telephone +33 5 61 93 36 96; fax +33 5 61
Air Transport Association (ATA) of actions required by paragraphs (g) and (h) of 93 44 51; email account.airworth-eas@
America Code 53, Fuselage. this AD, if those actions were performed airbus.com; Internet http://www.airbus.com.
before the effective date of this AD using You may view this service information at the
(e) Reason Airbus Service Bulletin A300–53–6173, FAA, Transport Airplane Directorate, 1601
This AD was prompted by the dated August 1, 2013, which is not Lind Avenue SW., Renton, WA. For
manufacturer’s review of all repairs incorporated by reference in this AD. information on the availability of this
accomplished using the structural repair material at the FAA, call 425–227–1221.
(l) Other FAA AD Provisions
manual. This review was done using revised Issued in Renton, Washington, on February
fatigue and damage tolerance calculations. The following provisions also apply to this
AD: 2, 2015.
We are issuing this AD to detect and correct
(1) Alternative Methods of Compliance Dionne Palermo,
previous incomplete or inadequate repairs to
the surrounding panels of the left and right (AMOCs): The Manager, International Acting Manager, Transport Airplane
forward passenger doors and the fail-safe Branch, ANM–116, Transport Airplane Directorate, Aircraft Certification Service.
ring, which could negatively affect the Directorate, FAA, has the authority to [FR Doc. 2015–02920 Filed 2–17–15; 8:45 am]
structural integrity of the airplane. approve AMOCs for this AD, if requested
BILLING CODE 4910–13–P
using the procedures found in 14 CFR 39.19.
(f) Compliance In accordance with 14 CFR 39.19, send your
Comply with this AD within the request to your principal inspector or local
Flight Standards District Office, as DEPARTMENT OF TRANSPORTATION
compliance times specified, unless already
done. appropriate. If sending information directly
to the International Branch, send it to ATTN: Federal Aviation Administration
(g) Inspection Dan Rodina, Aerospace Engineer,
At the time specified in paragraph (g)(1) or International Branch, ANM–116, Transport 14 CFR Part 39
(g)(2) of this AD, whichever is later: Do a Airplane Directorate, FAA, 1601 Lind [Docket No. FAA–2015–0245; Directorate
detailed inspection of the surrounding panels Avenue SW., Renton, WA 98057–3356; Identifier 2014–NM–135–AD]
of the left and right forward passenger doors telephone 425–227–2125; fax 425–227–1149.
to determine if any repairs have been done, Information may be emailed to: 9–ANM–116– RIN 2120–AA64
mstockstill on DSK4VPTVN1PROD with PROPOSALS

in accordance with the Accomplishment AMOC–REQUESTS@faa.gov. Before using
Instructions of Airbus Service Bulletin A300– any approved AMOC, notify your appropriate Airworthiness Directives; The Boeing
53–6173, Revision 01, dated February 28, principal inspector, or lacking a principal Company Airplanes
2014. inspector, the manager of the local flight
(1) Prior to the accumulation of 30,000 standards district office/certificate holding AGENCY: Federal Aviation
total flight cycles or 67,500 total flight hours, district office. The AMOC approval letter Administration (FAA), DOT.
whichever occurs first. must specifically reference this AD. ACTION: Notice of proposed rulemaking
(2) Within 28 months after the effective (2) Required for Compliance (RC): Except (NPRM).
date of this AD. as required by paragraph (j) of this AD, if the

VerDate Sep<11>2014 17:51 Feb 17, 2015 Jkt 235001 PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 E:\FR\FM\18FEP1.SGM 18FEP1
8570 Federal Register / Vol. 80, No. 32 / Wednesday, February 18, 2015 / Proposed Rules

proposed AD adds this new airplane procedures for installing an altitude and determined the unsafe condition
group to the applicability, we have pressure switch on the forward side of described previously is likely to exist or
added paragraph (j) to this proposed the station 400 bulkhead for the three- develop in other products of these same
AD, which provides new compliance way valve of the equipment cooling type designs.
times for Group 21 airplanes. system. Boeing also issued Boeing
Special Attention Service Bulletin 747– Proposed AD Requirements
Related Service Information Under 1
21–2533, dated February 13, 2014. This
CFR Part 51 This proposed AD would retain all of
service information describes
Boeing issued Boeing Alert Service the requirements of AD 2012–24–10,
procedures for adding a second altitude
Bulletin 747–21A2523, Revision 2, signal to the switching logic for the Amendment 39–17280 (77 FR 73908,
dated June 7, 2013. This service three-way valve to provide a second, December 12, 2012.) This proposed AD
information describes procedures for independent, altitude signal for the would also require installing a pressure
changing the wiring and operating logic equipment cooling system. switch bracket and altitude pressure
of the equipment cooling three-way For information on the procedures switch, and would add an airplane to
valve and replacing the existing duct and compliance times, see this service the applicability.
assembly with a new duct assembly on information. This service information is
the main distribution manifold of the air Costs of Compliance
reasonably available; see ADDRESSES for
conditioning system. ways to access this service information. We estimate that this proposed AD
Boeing also issued Boeing Special
FAA’s Determination affects 33 airplanes of U.S. registry.
Attention Service Bulletin 747–21–
2532, dated February 13, 2014. This We are proposing this AD because we We estimate the following costs to
service information describes evaluated all the relevant information comply with this proposed AD:

ESTIMATED COSTS
Cost per Cost on U.S.
Action Labor cost Parts cost product operators

Duct assembly and replacement wiring 44 work-hours × $85 per hour = $3,740 ........ $20,121 $23,861 $787,413
changes (retained actions from AD 2012–
24–10, Amendment 39–17280 (77 FR
73908, December 12, 2012).
Software changes (retained actions from AD 3 work-hours × $85 per hour = $255 ............. 0 255 8,415
2012–24–10, Amendment 39–17280 (77
FR 73908, December 12, 2012).
Altitude pressure switch installation (new pro- 13 work-hours × $85 per hour = $1,105 ........ 5,230 6,335 209,055
posed action).

According to the manufacturer, some products identified in this rulemaking List of Subjects in 14 CFR Part 39
of the costs of this proposed AD may be action.
Air transportation, Aircraft, Aviation
covered under warranty, thereby
Regulatory Findings safety, Incorporation by reference,
reducing the cost impact on affected
Safety.
individuals. We do not control warranty We have determined that this
coverage for affected individuals. As a proposed AD would not have federalism The Proposed Amendment
result, we have included all costs in our implications under Executive Order Accordingly, under the authority
cost estimate. 13132. This proposed AD would not delegated to me by the Administrator,
Authority for This Rulemaking have a substantial direct effect on the the FAA proposes to amend 14 CFR part
States, on the relationship between the 39 as follows:
Title 49 of the United States Code national Government and the States, or
specifies the FAA’s authority to issue on the distribution of power and PART 39—AIRWORTHINESS
rules on aviation safety. Subtitle I, responsibilities among the various DIRECTIVES
Section 106, describes the authority of levels of government.
the FAA Administrator. Subtitle VII, ■ 1. The authority citation for part 39
Aviation Programs, describes in more For the reasons discussed above, I
continues to read as follows:
detail the scope of the Agency’s certify that the proposed regulation:
Authority: 49 U.S.C. 106(g), 40113, 44701.
authority. (1) Is not a ‘‘significant regulatory
We are issuing this rulemaking under action’’ under Executive Order 12866, § 39.13 [Amended]
the authority described in Subtitle VII, (2) Is not a ‘‘significant rule’’ under ■ 2. The FAA amends § 39.13 by
Part A, Subpart III, Section 44701, the DOT Regulatory Policies and removing Airworthiness Directive (AD)
‘‘General requirements.’’ Under that Procedures (44 FR 11034, February 26, 2012–24–10, Amendment 39–17280 (77
section, Congress charges the FAA with
mstockstill on DSK4VPTVN1PROD with PROPOSALS

1979), FR 73908, December 12, 2012), and
promoting safe flight of civil aircraft in adding the following new AD:
air commerce by prescribing regulations (3) Will not affect intrastate aviation
for practices, methods, and procedures in Alaska, and The Boeing Company: Docket No. FAA–
the Administrator finds necessary for (4) Will not have a significant 2015–0245; Directorate Identifier 2014–
NM–135–AD.
safety in air commerce. This regulation economic impact, positive or negative,
is within the scope of that authority on a substantial number of small entities (a) Comments Due Date
because it addresses an unsafe condition under the criteria of the Regulatory The FAA must receive comments on this
that is likely to exist or develop on Flexibility Act. AD action by April 6, 2015.

VerDate Sep<11>2014 17:51 Feb 17, 2015 Jkt 235001 PO 00000 Frm 00010 Fmt 4702 Sfmt 4702 E:\FR\FM\18FEP1.SGM 18FEP1
Document Created: 2018-02-16 11:10:47
Document Modified: 2018-02-16 11:10:47
Category		Regulatory Information
Collection		Federal Register
sudoc Class		AE 2.7: GS 4.107: AE 2.106:
Publisher		Office of the Federal Register, National Archives and Records Administration
Section		Proposed Rules
Action		Notice of proposed rulemaking (NPRM).
Dates		We must receive comments on this proposed AD by April 6, 2015.
Contact		Ana Martinez Hueto, Aerospace Engineer, Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-6592; fax: 425-917-6591; email: [email protected]
FR Citation		80 FR 8568
RIN Number		2120-AA64
CFR Associated		Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
80 FR 8568 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATIONFederal Aviation Administration

Federal Register Volume 80, Issue 32 (February 18, 2015)

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
