[Federal Register Volume 78, Number 72 (Monday, April 15, 2013)]
[Rules and Regulations]
[Pages 22178-22180]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2013-08192]
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DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration
14 CFR Part 39
[Docket No. FAA-2010-1042; Directorate Identifier 2010-NM-094-AD;
Amendment 39-17413; AD 2013-07-09]
RIN 2120-AA64
Airworthiness Directives; The Boeing Company Airplanes
AGENCY: Federal Aviation Administration (FAA), DOT.
ACTION: Final rule.
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SUMMARY: We are adopting a new airworthiness directive (AD) for certain
The Boeing Company Model 737-700, -700C, -800, and -900ER series
airplanes, Model 747-400F series airplanes, and Model 767-200 and -300
series airplanes. This AD was prompted by reports indicating that
certain crew oxygen mask stowage box units were possibly delivered with
a burr in the inlet fitting. The burr might break loose during test or
operation, and might pose an ignition source or cause an inlet valve to
jam. This final rule adds a step to identify and label certain crew
oxygen mask stowage box units that have already been inspected and
reworked by the supplier, and allows operators to install new or
serviceable crew oxygen mask stowage box units, and requires a general
visual inspection for affected serial numbers of the crew oxygen mask
stowage box units, and replacement or re-identification as necessary.
We are issuing this AD to prevent an ignition source, which could
result in an oxygen-fed fire; or an inlet valve jam in a crew oxygen
mask stowage box unit, which could result in restricted flow of oxygen.
DATES: This AD is effective May 20, 2013.
The Director of the Federal Register approved the incorporation by
reference of certain publications listed in the AD as of May 20, 2013.
ADDRESSES: For Boeing 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. For Intertechnique service information
identified in this AD, contact Zodiac, 2, rue Maurice Mallet--92137
Issy-les-Moulineaux Cedex France; telephone +33 1 41 23 23 23; fax +33
1 46 48 83 87; Internet http://www.zodiac.com. You may review copies of
the 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.
Examining the AD Docket
You may examine the AD docket on the Internet at http://www.regulations.gov; 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 AD, the regulatory evaluation,
any comments received, and other information. The address for the
Docket Office (phone: 800-647-5527) is Document Management Facility,
U.S. Department of Transportation, Docket Operations, M-30, West
Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE.,
Washington, DC 20590.
FOR FURTHER INFORMATION CONTACT: Susan L. Monroe, Aerospace Engineer,
Cabin Safety and Environmental Systems Branch, ANM-150S, FAA, Seattle
Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton,
Washington 98057-3356; phone: 425-917-6457; fax: 425-917-6590; email:
[email protected].
SUPPLEMENTARY INFORMATION:
Discussion
We issued a supplemental notice of proposed rulemaking (SNPRM) to
amend 14 CFR part 39 to include an airworthiness directive (AD) that
would apply to the specified products. That SNPRM published in the
Federal Register on September 7, 2012 (77 FR 55159). The original NPRM
(75 FR 67637, November 3, 2010) proposed to require an inspection for
affected serial numbers of the crew oxygen mask stowage box units; and
replacement of the crew oxygen mask stowage box unit with a new crew
oxygen mask stowage box unit, if necessary. The SNPRM proposed to
revise the NPRM by adding a step to identify and label certain crew
oxygen mask stowage box units that have already been inspected and
reworked by the supplier, and allowing operators to install new or
serviceable crew oxygen mask stowage box units.
Comments
We gave the public the opportunity to participate in developing
this AD. The following presents the comments received on the proposal
(77 FR 55159, September 7, 2012) and the FAA's response to each
comment.
Support for the SNPRM (77 FR 55159, September 7, 2012)
Boeing stated that it supports the SNPRM (77 FR 55159, September 7,
2012).
Request for Clarification of Determination of the Affected Units
American Airlines (AA) requested that we revise the SNPRM (77 FR
55159, September 7, 2012) to clarify the method used by the
manufacturer to determine the affected units, and the potential that
those units could have been inadvertently installed on other airplanes.
AA explained that Boeing Alert Service Bulletin 737-35A1121, dated
December 14, 2009, provides limited background information as to how
Boeing determined which aircraft
[[Page 22179]]
had defective crew oxygen mask stowage box units installed, and how
operators could ensure that those affected crew oxygen mask stowage box
units had not been inadvertently reinstalled on other airplanes. AA
reasoned that the affected crew oxygen mask stowage box unit (MXP147-X)
is installed on multiple fleets that are operated by AA, and at times,
these crew oxygen mask stowage box units are loaned between other
operators.
We agree that clarification is necessary. Therefore, the Seattle
ACO is evaluating the associated risk to airplanes outside the
applicability of this AD, and the need for additional action. We might
consider further rulemaking to address our findings. Since it is not in
the interest of public safety to further delay this action, no changes
have been made to this AD regarding this issue at this time.
Clarification of Paragraph (g)(3) of This AD
We have clarified paragraph (g)(3) of this AD by specifying that
the reinstallation is not required if a records review was done to
determine the serial number of the crew oxygen stowage box unit.
Conclusion
We reviewed the relevant data, considered the comments received,
and determined that air safety and the public interest require adopting
the AD with the change described previously--and minor editorial
changes. We have determined that these minor changes:
Are consistent with the intent that was proposed in the
SNPRM (77 FR 55159, September 7, 2012) for correcting the unsafe
condition; and
Do not add any additional burden upon the public than was
already proposed in the SNPRM (77 FR 55159, September 7, 2012).
We also determined that these changes will not increase the
economic burden on any operator or increase the scope of the AD.
Costs of Compliance
We estimate that this AD affects 40 airplanes of U.S. registry.
We estimate the following costs to comply with this AD:
Estimated Costs
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Cost on U.S.
Action Labor cost Parts cost Cost per product operators
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Inspection............. 1 work-hour x $85 per None.................. $85 $3,400
hour = $85.
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We have received no definitive data that would enable us to provide
cost estimates for the on-condition actions specified in this 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
This AD will not have federalism implications under Executive Order
13132. This AD will 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 this AD:
(1) Is not a ``significant regulatory action'' under Executive
Order 12866,
(2) Is not a ``significant rule'' under 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.
Adoption of the Amendment
Accordingly, under the authority delegated to me by the
Administrator, the FAA amends 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 adding the following new airworthiness
directive (AD):
2013-07-09 The Boeing Company: Amendment 39-17413 ; Docket No. FAA-
2010-1042; Directorate Identifier 2010-NM-094-AD.
(a) Effective Date
This AD is effective May 20, 2013.
(b) Affected ADs
None.
(c) Applicability
This AD applies to The Boeing Company airplanes, certificated in
any category, as identified in paragraphs (c)(1), (c)(2), and (c)(3)
of this AD.
(1) Model 737-700, -700C, -800, and -900ER series airplanes, as
identified in Boeing Alert Service Bulletin 737-35A1121, Revision 1,
dated November 7, 2011.
(2) Model 747-400F series airplanes, as identified in Boeing
Alert Service Bulletin 747-35A2126, Revision 1, dated September 29,
2011.
(3) Model 767-200 and -300 series airplanes, as identified in
Boeing Alert Service Bulletin 767-35A0057, Revision 1, dated
November 17, 2011.
(d) Subject
Joint Aircraft System Component (JASC)/Air Transport Association
(ATA) of America Code 35, Oxygen.
(e) Unsafe Condition
This AD was prompted by reports indicating that certain crew
oxygen mask stowage box units were possibly delivered with a burr in
the inlet fitting. The burr might break loose during test or
operation, and might pose an ignition source or cause an inlet valve
to jam. We are issuing this AD to prevent an ignition source, which
could result in an oxygen-fed fire; or an inlet valve jam in a crew
oxygen mask stowage box unit, which could result in restricted flow
of oxygen.
[[Page 22180]]
(f) Compliance
Comply with this AD within the compliance times specified,
unless already done.
(g) Inspection and Corrective Action
Within 24 months after the effective date of this AD: Do a
general visual inspection to determine if the serial number of the
crew oxygen mask stowage box unit is identified in the Appendix of
Intertechnique Service Bulletin MXP1/4-35-175,
Revision 2, dated May 10, 2011, in accordance with the
Accomplishment Instructions of the applicable Boeing alert service
bulletin specified in paragraph (c)(1), (c)(2), or (c)(3) of this
AD. A review of airplane maintenance records is acceptable in lieu
of this inspection if the serial number of the crew oxygen mask
stowage box unit can be conclusively determined from that review.
(1) If any crew oxygen mask stowage box unit has a serial number
identified in table 1 of the Appendix of Intertechnique Service
Bulletin MXP1/4-35-175, Revision 2, dated May 10, 2011: Before
further flight, replace the crew oxygen mask stowage box unit with a
new or serviceable unit, in accordance with the Accomplishment
Instructions of the applicable Boeing alert service bulletin
specified in paragraph (c)(1), (c)(2), or (c)(3) of this AD.
(2) If any crew oxygen mask stowage box unit has a serial number
identified in table 2 of the Appendix of Intertechnique Service
Bulletin MXP1/4-35-175, Revision 2, dated May 10, 2011: Before
further flight, add the letter ``I'' to the end of the serial number
(identified as ``SER'') on the identification label, in accordance
with the Accomplishment Instructions of Intertechnique Service
Bulletin MXP1/4-35-175, Revision 2, dated May 10, 2011; and
reinstall in accordance with the Accomplishment Instructions of the
applicable Boeing alert service bulletin specified in paragraph
(c)(1), (c)(2), or (c)(3) of this AD.
(3) If no crew oxygen mask stowage box unit has a serial number
identified in the Appendix of Intertechnique Service Bulletin MXP1/
4-35-175, Revision 2, dated May 10, 2011: Unless a records review
was done to determine the serial number, before further flight,
reinstall the crew oxygen mask stowage box unit, in accordance with
the Accomplishment Instructions of the applicable Boeing alert
service bulletin specified in paragraph (c)(1), (c)(2), or (c)(3) of
this AD.
(h) Parts Installation Prohibition
As of the effective date of this AD, no person may install a
crew oxygen mask stowage box unit with a serial number listed in the
Appendix of Intertechnique Service Bulletin MXP1/4-35-175, Revision
2, dated May 10, 2011, on any airplane.
(i) 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 the Related Information
section 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.
(j) Related Information
For more information about this AD, contact Susan L. Monroe,
Aerospace Engineer, Cabin Safety and Environmental Systems Branch,
ANM-150S, FAA, Seattle Aircraft Certification Office (ACO), 1601
Lind Avenue SW., Renton, Washington 98057-3356; phone: 425-917-6457;
fax: 425-917-6590; email: [email protected].
(k) Material Incorporated by Reference
(1) The Director of the Federal Register approved the
incorporation by reference (IBR) of the service information listed
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
(2) You must use this service information as applicable to do
the actions required by this AD, unless the AD specifies otherwise.
(i) Boeing Alert Service Bulletin 737-35A1121, Revision 1, dated
November 7, 2011.
(ii) Boeing Alert Service Bulletin 747-35A2126, Revision 1,
dated September 29, 2011.
(iii) Boeing Alert Service Bulletin 767-35A0057, Revision 1,
dated November 17, 2011.
(iv) Intertechnique Service Bulletin MXP1/4-35-175, Revision 2,
dated May 10, 2011.
(3) For Boeing 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. For Intertechnique service
information identified in this AD, contact Zodiac, 2, rue Maurice
Mallet--92137 Issy-les-Moulineaux Cedex, France; telephone +33 1 41
23 23 23; fax +33 1 46 48 83 87; Internet http://www.zodiac.com.
(4) You may view this service information at 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.
(5) You may view this service information that is incorporated
by reference at the National Archives and Records Administration
(NARA). For information on the availability of this material at
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.
Issued in Renton, Washington, on March 29, 2013.
Ali Bahrami,
Manager, Transport Airplane Directorate, Aircraft Certification
Service.
[FR Doc. 2013-08192 Filed 4-12-13; 8:45 am]
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