Document ID: FAA-2011-0139-0010
Agency: faa
Document Type: Rule
Title: Airworthiness Directives: B/E Aerospace, Continuous Flow Passenger Oxygen Mask Assembly, Part Numbers 174006-(), 174080-(), 174085-(), 174095-(), 174097-(), and 174098-()
Posted Date: 2011-07-15T04:00Z

[Federal Register Volume 76, Number 136 (Friday, July 15, 2011)]
[Rules and Regulations]
[Pages 41669-41673]
From the Federal Register Online via the Government Printing Office [www.gpo.gov]
[FR Doc No: 2011-17205]

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2011-0139; Directorate Identifier 2010-CE-057-AD; 
Amendment 39-16743; AD 2011-14-08]
RIN 2120-AA64

Airworthiness Directives; B/E Aerospace, Continuous Flow 
Passenger Oxygen Mask Assembly, Part Numbers 174006-( ), 174080-( ), 
174085-( ), 174095-( ), 174097-( ), and 174098-( )

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are adopting a new airworthiness directive (AD) for the 
products listed above, except for those that are currently affected by 
similar action through any of five ADs applicable to Boeing products. 
This AD requires an inspection/records check to determine the 
manufacturer and part number of the oxygen mask assemblies installed, 
an inspection to determine the manufacturing date and modification 
status if certain oxygen mask assemblies are installed, and corrective 
action for certain oxygen mask assemblies. This AD was prompted by a 
report that several oxygen mask assemblies with broken in-line flow 
indicators were found following a mask deployment. We are issuing this 
AD to prevent the in-line flow indicators of the oxygen mask assembly 
from fracturing and separating, which could inhibit oxygen flow to the 
masks. This condition could consequently result in occupants developing 
hypoxia following a depressurization event.

DATES: This AD is effective August 19, 2011.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in the AD as of August 19, 
2011.

ADDRESSES: For service information identified in this AD, contact B/E 
Aerospace, 10800 Pflumm Road, Lenexa, Kansas 66215; telephone: (913) 
338-9800; fax: (913) 469-8419; Internet: http://www.beaerospace.com. 
You may review copies of the referenced service information at the FAA, 
Small Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. 
For information on the availability of this material at the FAA, call 
(816) 329-4148.

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: David Fairback, Aerospace Engineer, 
Wichita Aircraft Certification Office, FAA, 1801 Airport Road, Room 
100, Wichita, Kansas 67209; telephone: (316) 946-4154; fax: (316) 946-
4107; e-mail: david.fairback@faa.gov.

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to include an airworthiness directive (AD) that would apply to 
the specified products. That NPRM published in the Federal Register on 
February 23, 2011 (76 FR 9984). That NPRM proposed to require an 
inspection/records check to determine the manufacturer and part number 
of the oxygen mask assemblies installed, an inspection to determine the 
manufacturing date and modification status if certain oxygen mask 
assemblies are installed, and corrective action for certain oxygen mask 
assemblies.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments received on the proposal 
and the FAA's response to each comment. B/E Aerospace supports the 
NPRM.

Request To Address Past Production Cut Over Point Airplanes

    The Boeing Company (Boeing) stated that a statement should be 
included in the final rule AD action to address installation of the 
affected oxygen mask assemblies on Boeing airplanes that are not 
included in existing Boeing service bulletins because these airplanes 
are past production cut over point.
    Boeing stated that, due to long-time lag between production cut 
over change and the release of the AD, there is a high likelihood that 
on Boeing airplanes past production cut over point, but prior to 
release of this AD due to lack of awareness of the pending AD release, 
operators could have installed one of the affected oxygen mask 
assemblies during routine maintenance. The Applicability section of the 
proposed AD could mislead operators to not take corrective actions on 
Boeing airplanes even if they had unknowingly installed affected oxygen 
mask assemblies on airplanes past production cut over prior to release 
of the AD. This could also apply to installation of affected oxygen 
mask assemblies on Boeing airplanes through supplemental type 
certificate (STC) or through field approval.
    We agree with the commenter. However, the unsafe condition on 
Boeing airplanes will be addressed separately from this AD. If 
additional action is necessary to address Boeing's concerns, additional 
rulemaking may be taken specific to Boeing airplanes.
    We have not changed the final rule AD action based on this comment.

Request for Applicability Clarification

    Boeing stated that there is confusion between the statements in the 
Differences Between the Proposed AD and the Service Information section 
and the Applicability section in the proposed AD. The statements are 
contradictory and could mislead operators. In the proposed AD, it is 
stated in the Differences Between the Proposed AD and the Service 
Information section that oxygen mask

[[Page 41670]]

assemblies affected by AD 2007-26-06, AD 2008-08-08, AD 2008-12-05, AD 
2008-13-21, or AD 2010-14-06 are not affected by this proposed AD. In 
the Applicability section of the proposed AD, it is stated that the AD 
applies to B/E Aerospace, Continuous Flow Passenger Oxygen Mask 
Assembly; Part Numbers 174006-( ), 174080-( ), 174085-( ), 174095-( ), 
174097-( ), and 174098-( ) as listed in B/E Aerospace Service Bulletin 
174080-35-04, Rev 000, dated September 6, 2010, that are installed on 
any aircraft except for those Boeing airplanes specified in the ADs 
referenced in paragraphs (b)(1), (b)(2), (b)(3), (b)(4), and (b)(5) of 
this AD.
    The Differences Between the Proposed AD and the Service Information 
section excludes mask assemblies by part number from the proposed AD if 
they are included in the previously referenced ADs. The Applicability 
section provides relief for Boeing airplanes covered by the previously 
referenced ADs. This information is contradictory and needs to be 
clarified in the final rule AD action.
    We agree with the commenter. The statement in the Differences 
Between the Proposed AD and the Service Information section is 
incorrect. The template used for preparing final rule AD actions does 
not include the Differences Between the Proposed AD and the Service 
Information section, which is part of the Discussion section and not 
part of the actual AD. The Applicability section in the proposed AD is 
correct. We regret any confusion this may have caused.
    We have not changed the final rule AD action based on this comment.

Request To Exclude Certain Airplanes From the Applicability Section

    Airbus, jetBlue Airways, and All Nippon Airways stated Airbus 
airplanes in compliance with B/E Aerospace Service Bulletin 174080-35-
02, Rev. 1, as specified in European Aviation Safety Agency (EASA) AD 
2010-0165, dated August 5, 2010, should be excluded from the 
applicability of the proposed AD.
    The commenters state that this change would harmonize the EASA AD 
with the FAA AD and avoid duplicate work.
    We partially agree with the commenters. We do not agree to exclude 
Airbus airplanes affected by the EASA AD because the EASA AD does not 
include all of the oxygen mask assembly part numbers that contain the 
potentially defective in-line flow indicators. We do agree that 
duplicate work should be avoided and that credit for compliance with 
the EASA AD could be given, but only if it can be positively determined 
that no oxygen mask assembly part number listed in B/E Aerospace 
Service Bulletin 174080-35-04, Rev 000, dated September 6, 2010, or 
listed in EASA AD 2010-0165, dated August 5, 2010, is installed by STC 
or alternation.
    We have revised the final rule AD action to include a statement in 
paragraph (g)(1) giving conditional credit for compliance with the EASA 
AD 2010-0165, dated August 5, 2010, or EASA AD 2010-0165R1, correction 
dated January 31, 2011.

Request To Allow an Additional Method of Compliance

    Airbus stated that compliance with the final rule AD action should 
include inspection of the oxygen mask assembly container for a 
manufacture date of oxygen mask assemblies that were fitted at time of 
production delivery providing that no replacement of masks occurred up 
to the effective date of the final rule AD action.
    Airbus stated that they received a statement from B/E Aerospace 
stating that ``container assemblies that were manufactured after March 
1, 2006, do not contain masks that were manufactured before March 1, 
2006.'' Airbus confirms that no modification is performed on the 
container assemblies and/or subassemblies before aircraft delivery.
    We partially agree with the commenter. We agree that inspection of 
the oxygen mask assembly container for manufacture date is adequate 
only if it can be verified that the original oxygen masks in the 
container assembly are installed. We disagree that relying on the 
container assembly manufacture date alone addresses the safety concern 
because the masks in the container assembly may have been changed after 
it was manufactured.
    We have revised the final rule AD action based on this comment to 
include inspection of the container assembly date only if it can be 
positively determined that the passenger oxygen masks within the 
container assembly have not been modified since it was manufactured.

Request To Change Replacement Compliance Time

    Airbus stated that replacement of the in-line flow indicator before 
further flight after the inspection would only be necessary if, during 
the physical check of the oxygen mask assembly, it is found broken. 
Based on difficulties in getting spare parts from the supplier in 
sufficient time, the compliance time for modifying the affected oxygen 
masks should be changed to 36 months after the effective date of the AD 
or within 6,500 hours time-in-service (TIS) after the effective date of 
the AD, whichever occurs first.
    We agree with the commenter. Changing the compliance time for 
modifying the affected oxygen masks will still address the safety 
concern of the unsafe condition identified in the proposed AD.
    We have revised the final rule AD action to change the replacement/
modification compliance time in paragraph (h).

Request To Include Other Oxygen Mask Assemblies in the Applicability 
Section

    BOS Aviation Ltd. stated that the Applicability section should also 
include additional in-line flow indicator part numbers because faulty 
in-line flow indictors are fitted to more masks than identified in B/E 
Aerospace Service Bulletin 174080-35-04, Rev 000, dated September 6, 
2010. BOS Aviation Ltd. stated that some technical documentation 
suggests that a very popular series of AVOX oxygen masks contain the 
same in-line flow indicator, although it masquerades under AVOX part 
number 804273-01. They also stated that examination of the failure mode 
of the suspect in-line flow indicator showed that the failure was where 
the two halves are glued together, not as was suggested at the ``weak'' 
sharp molded joint stated in the B/E Aerospace service bulletin and 
other communication.
    We do not agree with the commenter. AVOX stopped using the B/E 
Aerospace in-line flow indicator in their passenger oxygen masks 
several years before 2002 when the AVOX part number 804273-01 was 
introduced. The B/E Aerospace part number 118023-02 in-line flow 
indicator is not glued; it is welded together. The photos provided by 
BOS Aviation Ltd. show that the failure did not occur at the weld since 
the opaque material is still bonded to the transparent material.
    The FAA issued Special Alert Information Bulletin (SAIB) NM-11-25 
to address an issue with AVOX in-line flow indicators that is different 
from the B/E Aerospace in-line flow indicators.
    We have not changed the final rule AD action based on this comment.

Request To Include Other In-Line Flow Indicators in the Applicability 
Section

    BOS Aviation Ltd. stated that the manufacturer date window be 
removed from the final rule AD action because several suspect part 
number in-line flow indicators are in service that were manufactured 
before the January 1, 2002

[[Page 41671]]

date specified in B/E Aerospace Service Bulletin 174080-35-04, Rev 000, 
dated September 6, 2010. BOS Aviation Ltd. stated that the date is not 
carried on the in-flow indicator, thereby making it difficult to 
confirm the age of the in-line flow indicator regardless of the age of 
the oxygen mask. The same ambiguity applies if there has been any 
repair to the unit.
    We do not agree with the commenter. Based on the failure data we 
have, we determined that no AD action is necessary for other in-line 
flow indicators or for in-line flow indicators manufactured before 
2002.
    We have not changed the final rule AD action based on this comment.

Request To Show Compliance Through Permanent Marking

    BOS Aviation Ltd. requested that the personal safety unit (PSU) (as 
well as the actual oxygen mask assembly) be marked to show compliance 
with the AD; thereby negating the need to open the PSU and drop the 
oxygen mask assembly to confirm compliance in the future.
    We partially agree with the commenter. We agree that the oxygen 
mask assembly needs to be marked to show it has been modified as 
specified in the service bulletin. However, we do not agree to require 
marking of the oxygen mask stowage container to show compliance with 
the AD when compliance can be confirmed by checking the maintenance 
records.
    We have not changed the final rule AD action based on this comment.

Request To Add Additional Guidance

    BOS Aviation Ltd. stated that the FAA should instruct owner/
operators to use standard maintenance practices when doing the actions 
required in the final rule AD action. This should be done for a myriad 
of good reasons that relate primarily to safety, none of which goes 
away simply because the maintenance is carried out as a result of an AD 
or a service bulletin.
    We partially agree with the commenter. We agree that standard 
maintenance practices should always be used. Appropriate personnel and 
procedures must be used for the inspection and modification required by 
this AD to ensure safety and not create additional hazards. We disagree 
that language should be added to the AD to emphasize safety when doing 
actions required in an AD.
    We have not changed the final rule AD action based on this comment.

Request To Update Cost of Compliance Section

    BOS Aviation Ltd. stated that B/E Aerospace has offered to supply 
replacement in-line flow indicators to operators free of charge. The 
FAA assessed the cost of compliance based on the manpower requirement 
stated in B/E Aerospace Service Bulletin 174080-35-04, Rev 000, dated 
September 6, 2011, and is grossly underestimated. In many applications, 
the suspect oxygen masks are contained in a PSU that is live and 
installed in operational aircraft. The proposed AD requires opening and 
disassembling the oxygen mask assembly in order to carry out the 
inspection, in addition to modifying any defective oxygen mask. To do 
this task safely and following various manufacturers' maintenance 
instructions, the oxygen mask assembly should be removed from the 
aircraft, taken to an oxygen clean environment, and made safe in 
preparation for maintenance.
    Once open, depending on type, the oxygen mask assemblies are 
tightly wrapped with their tube specifically coiled and packaged with 
the in-line flow indicator not immediately visible, which then requires 
``unpacking'' the box that may contain up to four masks. The box then 
requires proper ``re-packing'' before reinstallation and test in the 
aircraft.
    BOS Aviation Ltd. stated that they have conducted tests that would 
suggest the accomplishment time (as presented in AD 2007-26-06 for 
example) is probably adequate for an aircraft of a half or a third the 
capacity of the 747. Moreover, where aircraft PSUs use chemical oxygen 
generators, the issue to ensure safety with respect to the oxygen 
generating canister becomes paramount and increases the workhours 
required. Our estimate, at the very best, for accomplishing the AD on 
an airplane's set of PSUs on a 150 seat narrow body airplane, will 
require a minimum of 3 days down time, not including transport of the 
PSUs to a suitable workshop for accomplishment of the AD.
    We do not agree with the commenter. The cost estimate of $19,400,00 
for the estimated number of affected oxygen mask assemblies is based on 
the following:
     The cost estimate for the AD assumes that all of the 
400,000 part number in-line flow indicators manufactured on or after 
January 1, 2002, and before March 1, 2006, are replaced for compliance 
with this AD. In reality, most of these in-line flow indicators are 
installed in Boeing and Airbus airplanes and will be replaced in 
compliance with the previously referenced ADs. The exact number that 
will be replaced in accordance with this AD is unknown, but it will be 
less than the estimated 400,000.
     The cost estimate assumes 30 minutes are required to do 
the actions required in this AD for each affected oxygen mask assembly. 
This estimate is much higher than the 3-minute time proposed in B/E 
Aerospace Service Bulletin 174080-35-04, Rev 000, dated September 6, 
2010.
     For the oxygen mask assemblies to be maintained in an 
airworthy condition, a recurrent inspection for each oxygen mask is 
necessary. The 6,500-hour TIS/36-month compliance time of this AD will 
allow many operators to do the actions required in this AD at the same 
time as the recurrent inspection.
    We have not changed the final rule AD action based on this comment.

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 changes described previously and minor editorial 
changes. We have determined that these minor changes:
     [Agr]re consistent with the intent that was proposed in 
the NPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.
    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 400,000 oxygen mask assemblies.
    We estimate the following costs to comply with this AD:

[[Page 41672]]

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                  Cost on U.S.
              Action                    Labor cost           Parts cost      Cost per product      operators
----------------------------------------------------------------------------------------------------------------
Replace the in-line flow           0.5 work-hour x $85              $6.00             $48.50        $19,400,000
 indicator per mask.                per hour = $42.50.
----------------------------------------------------------------------------------------------------------------

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):

2011-14-08 B/E Aerospace: Amendment 39-16743; Docket No. FAA-2011-
0139; Directorate Identifier 2010-CE-057-AD.

Effective Date

    (a) This AD is effective August 19, 2011.

Affected ADs

    (b) None. This AD does not revise or supersede any existing ADs. 
The following ADs address the unsafe condition described in 
paragraph (e) of this AD for certain installations on certain Boeing 
airplanes:
    (1) AD 2007-26-06, Amendment 39-15308 (72 FR 71210, December 17, 
2007), for certain Boeing Model 747-200B, 747-300, and 747-400 
series airplanes identified in Boeing Service Bulletin 747-35-2119, 
dated November 30, 2006;
    (2) AD 2008-08-08, Amendment 39-15460 (73 FR 19982, April 14, 
2008), for certain Boeing Model 757-200, 757-200CB, 757-200PF, and 
757-300 series airplanes identified in Boeing Special Attention 
Service Bulletin 757-35-0028, dated April 9, 2007;
    (3) AD 2008-12-05, Amendment 39-15548 (73 FR 32996, June 11, 
2008), for certain Boeing Model 777-200, 777-200LR, 777-300, and 
777-300ER series airplanes identified in Boeing Special Attention 
Service Bulletin 777-35-0019, dated March 9, 2006;
    (4) AD 2008-13-21, Amendment 39-15584 (73 FR 37781, July 2, 
2008), for certain Boeing Model 767-200, 767-300, and 767-400ER 
series airplanes identified in Boeing Special Attention Service 
Bulletin 767-35-0054, dated July 6, 2006; and
    (5) AD 2010-14-06, Amendment 39-16351 (75 FR 38014, July 1, 
2010), for certain The Boeing Company Model 737-200, 737-300, 737-
400, and 737-500 series airplanes identified in Boeing Special 
Attention Service Bulletin 737-35-1099, Revision 1, dated April 23, 
2009.

Applicability

    (c) This AD applies to B/E Aerospace, Continuous Flow Passenger 
Oxygen Mask Assembly; Part Numbers 174006-( ), 174080-( ), 174085-( 
), 174095-( ), 174097-( ), and 174098-( ) as listed in B/E Aerospace 
Service Bulletin 174080-35-04, Rev 000, dated September 6, 2010, 
that are installed on any aircraft except for those Boeing airplanes 
specified in the ADs referenced in paragraphs (b)(1), (b)(2), 
(b)(3), (b)(4), and (b)(5) of this AD.

    Note 1:  The service bulletin lists the part numbers with a 
suffix of ``XX.'' The TSO Index lists the part numbers with the 
suffix of ``( ).'' For the purposes of this AD, we have used ``( 
).''

Subject

    (d) Joint Aircraft System Component (JASC)/Air Transport 
Association (ATA) of America Code 35: Oxygen.

Unsafe Condition

    (e) This AD was prompted by a report that several oxygen mask 
assemblies with broken in-line flow indicators were found following 
a mask deployment. We are issuing this AD to prevent the in-line 
flow indicators of the oxygen mask assembly from fracturing and 
separating, which could inhibit oxygen flow to the masks. This 
condition could consequently result in occupants developing hypoxia 
following a depressurization event.

Compliance

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

Records Check/Inspection

    (g) Within 36 months after August 19, 2011 (the effective date 
of this AD) or within 6,500 hours time-in-service (TIS) after August 
19, 2011 (the effective date of this AD), whichever occurs first, do 
the following:
    (1) Do a records check to determine if any oxygen mask assembly 
part number listed in B/E Aerospace Service Bulletin 174080-35-04, 
Rev 000, dated September 6, 2010, is installed in the aircraft.
    (i) If you cannot positively determine the manufacturer and part 
number of any oxygen mask assembly installed, do a general visual 
inspection to determine if any oxygen mask assembly part number 
listed in B/E Aerospace Service Bulletin 174080-35-04, Rev. 000, 
dated September 6, 2010, is installed in the aircraft.
    (ii) If you can positively determine that no oxygen mask 
assembly part number listed in B/E Aerospace Service Bulletin 
174080-35-04, Rev 000, dated September 6, 2010, is installed, no 
further action is required by this AD.
    (iii) If you can positively determine that any Airbus airplane 
affected by this AD is in compliance with European Aviation Safety 
Agency (EASA) AD 2010-0165, dated August 5, 2010, or EASA AD 2010-
0165R1, correction dated January 31, 2011, and that no oxygen mask 
assembly part number listed in B/E Aerospace Service Bulletin 
174080-35-04, Rev 000, dated September 6, 2010 is

[[Page 41673]]

installed by STC or alteration, no further action is required by 
this AD.
    (iv) If you can positively determine through inspection of the 
oxygen mask container assembly that the date of manufacture is after 
March 1, 2006, and you can verify that the original oxygen masks in 
the container assembly are installed, no further action is required 
by this AD.
    (2) If, as a result of any of the records checks/inspections 
required in paragraph (g)(1) of this AD, you determine that an 
oxygen mask assembly part number listed in B/E Aerospace Service 
Bulletin 174080-35-04, Rev 000, dated September 6, 2010, is 
installed, inspect the oxygen mask assembly to determine if the in-
line flow indicator must be replaced following paragraph II.A. of B/
E Aerospace Service Bulletin 174080-35-04, Rev 000, dated September 
6, 2010. If you can positively determine that the in-line flow 
indicator does not require replacement, no further action is 
required by this AD.

Modification/Replacement

    (h) After the inspection in paragraph (g)(2) of this AD and it 
was determined the in-line flow indicator must be replaced, within 
36 months after August 19, 2011 (the effective date of this AD) or 
within 6,500 hours TIS after August 19, 2011 (the effective date of 
this AD), whichever occurs first, modify the oxygen mask assembly by 
replacing the in-line flow indicator following B/E Aerospace Service 
Bulletin 174080-35-04, Rev 000, dated September 6, 2010. As an 
alternative to modifying the oxygen mask assembly, you may replace 
the oxygen mask assembly with an airworthy oxygen mask assembly FAA-
approved for installation on the aircraft.

Parts Installation

    (i) As of August 19, 2011 (the effective date of this AD), do 
not install a B/E Aerospace oxygen mask having a part number listed 
in B/E Aerospace Service Bulletin 174080-35-04, Rev 000, dated 
September 6, 2010, with a manufacturing date on or after January 1, 
2002, and before March 1, 2006, on any aircraft, unless it has been 
modified following the requirements of paragraph (h) of this AD.

Alternative Methods of Compliance (AMOCs)

    (j)(1) The Manager, Wichita 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.
    (2) Before using any approved AMOC, notify your Principal 
Maintenance Inspector or Principal Avionics Inspector, as 
appropriate, or lacking a principal inspector, your local Flight 
Standards District Office.

Related Information

    (k) For more information about this AD, contact David Fairback, 
Aerospace Engineer, Wichita ACO, FAA, 1801 Airport Road, Room 100, 
Wichita, Kansas 67209; telephone: (316) 946-4154; fax: (316) 946-
4107; e-mail: david.fairback@faa.gov.
    (l) For service information identified in this AD, contact B/E 
Aerospace, 10800 Pflumm Road, Lenexa, Kansas 66215; telephone: (913) 
338-9800; fax: (913) 469-8419; Internet: http://www.beaerospace.com. 
You may review copies of the referenced service information at the 
FAA, Small Airplane Directorate, 901 Locust, Kansas City, Missouri 
64106. For information on the availability of this material at the 
FAA, call (816) 329-4148.

Material Incorporated by Reference

    (m) You must use B/E Aerospace Service Bulletin 174080-35-04, 
Rev 000, dated September 6, 2010, to do the actions required by this 
AD, unless the AD specifies otherwise.
    (1) The Director of the Federal Register approved the 
incorporation by reference of the service information under 5 U.S.C. 
552(a) and 1 CFR part 51.
    (2) For service information identified in this AD, contact B/E 
Aerospace, 10800 Pflumm Road, Lenexa, Kansas 66215; telephone: (913) 
338-9800; fax: (913) 469-8419; Internet: http://www.beaerospace.com.
    (3) You may review copies of the referenced service information 
at the FAA, Small Airplane Directorate, 901 Locust, Kansas City, 
Missouri 64106. For information on the availability of this material 
at the FAA, call 816-329-4148.
    (4) You may also review copies of the service information that 
is incorporated by reference at the National Archives and Records 
Administration (NARA). For information on the availability of this 
material at an NARA facility, call 202-741-6030, or go to http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html.

    Issued in Kansas City, Missouri, on July 1, 2011.
Earl Lawrence,
Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. 2011-17205 Filed 7-14-11; 8:45 am]
BILLING CODE 4910-13-P