81_FR_94041 81 FR 93795 - Airworthiness Directives The Boeing Company Airplanes

81 FR 93795 - Airworthiness Directives The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 246 (December 22, 2016)

Page Range93795-93798
FR Document2016-30032

We are adopting a new airworthiness directive (AD) for certain The Boeing Company Model 787-8 airplanes. This AD was prompted by reports of electrical shorts of the motor stator wiring burning a hole through the housing of the motor of the cabin air compressor (CAC). This AD requires installing modified inboard and outboard CAC modules on the left-hand (LH) side and right-hand (RH) side cabin air conditioning and temperature control system (CACTCS) packs. We are issuing this AD to prevent the unsafe condition on these products.

Federal Register, Volume 81 Issue 246 (Thursday, December 22, 2016)
[Federal Register Volume 81, Number 246 (Thursday, December 22, 2016)]
[Rules and Regulations]
[Pages 93795-93798]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-30032]


=======================================================================
-----------------------------------------------------------------------

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2015-7531; Directorate Identifier 2015-NM-052-AD; 
Amendment 39-18747; AD 2016-25-21]
RIN 2120-AA64


Airworthiness Directives The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for certain 
The Boeing Company Model 787-8 airplanes. This AD was prompted by 
reports of electrical shorts of the motor stator wiring burning a hole 
through the housing of the motor of the cabin air compressor (CAC). 
This AD requires installing modified inboard and outboard CAC modules 
on the left-hand (LH) side and right-hand (RH) side cabin air 
conditioning and temperature control system (CACTCS) packs. We are 
issuing this AD to prevent the unsafe condition on these products.

DATES: This AD is effective January 26, 2017.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of January 26, 
2017.

ADDRESSES: For service information identified in this final rule, 
contact Boeing Commercial Airplanes, Attention: Contractual & Data 
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 
90740; telephone 562-797-1717; 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-2015-7531.

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-
7531; 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 Docket 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: Eric Brown, 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: 425-917-6476; fax: 425-917-6590; email: 
[email protected].

SUPPLEMENTARY INFORMATION:

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to certain The Boeing Company 
Model 787-8 airplanes. The NPRM published in the Federal Register on 
December 29, 2015 (80 FR 81220) (``the NPRM''). The NPRM was prompted 
by reports of electrical shorts of the motor stator wiring burning a 
hole through the housing of the motor of the CAC. The NPRM proposed to 
require installing modified inboard and outboard CAC modules on the LH 
side and RH side CACTCS packs. We are issuing this AD to prevent an 
electrical short from burning through the housing of the motor of the 
CAC. This condition, in combination with flammable fuel vapors, could 
result in a fire in the pack bay and consequent reduced controllability 
of the airplane.

Comments

    We gave the public the opportunity to participate in developing 
this AD. The following presents the comments

[[Page 93796]]

received on the NPRM and the FAA's response to each comment.

Support for the NPRM

    United Airlines (UA) stated that it agrees with the proposed 
compliance time.

Request To Clarify the Unsafe Condition

    Boeing asked that we clarify the unsafe condition in the NPRM to 
specify that for a fire to occur in the pack bay, an electrical short 
would have to burn through the housing of the CAC motor in combination 
with the presence of flammable fluid vapors. Boeing stressed that the 
top-level event requires both an ignition source and flammable fluid 
vapors.
    We agree with the commenter's request for the reason provided. We 
have revised the unsafe condition in the Discussion section and 
paragraph (e) of this AD accordingly.

Requests To Increase Work-Hour Estimate

    Boeing and Japan Airlines (JAL) asked that we increase the work-
hour estimate in the ``Costs of Compliance'' section of the NPRM. 
Boeing stated that Boeing Alert Service Bulletin B787-81205-SB210055-
00, Issue 001, dated March 12, 2015, specifies 25.25 work-hours for the 
LH side pack replacement and 28.25 work-hours for the RH side pack 
replacement. Boeing added that the NPRM should either specify 30 work-
hours per side or 60 work-hours per airplane. JAL stated that the 
replacement for each pack specified in the proposed AD requires more 
than 25 work-hours, as specified in the referenced service information.
    We agree. We have confirmed that the proposed work-hour estimate 
should be increased. Therefore, we have increased the work-hour 
estimate in the ``Costs of Compliance'' section of this final rule from 
``up to 30 work-hours'' to ``up to 54 work-hours'' for accomplishing 
the required actions.

Request To Extend Compliance Time

    JAL asked that the proposed compliance time for the CAC 
replacements specified in the NPRM be extended so the actions can be 
done during scheduled heavy maintenance. JAL stated that the 
replacement for each pack specified in the proposed AD requires more 
than 25 work-hours, which would necessitate a longer compliance time.
    We do not agree with the commenter's request to extend the 
compliance time for the CAC replacements. We have determined that the 
compliance time, as proposed, represents the maximum interval of time 
allowable for the affected airplanes to continue to safely operate 
before the CAC replacements are accomplished. Airplanes affected by 
this AD will undergo at least one maintenance check (C-check) within 
the required compliance time (5 years after the effective date of this 
AD); the replacement can be done at that time. Therefore, we have made 
no change to this AD in this regard.

Request To Use Alternative Part

    Aeromexico asked if installing an H10 CAC having part number (P/N) 
7010101H10 could be considered as an alternative to installing H09 CAC 
parts having P/N 7010101H09. Aeromexico stated that Boeing Alert 
Service Bulletin B787-81205-SB210055-00, Issue 001, dated March 12, 
2015, specifies installing the H09 CAC, but UTC Aerospace Systems (the 
parts vendor) stated that there are no H09 CACs presently available. 
Aeromexico added that UTC Aerospace Systems indicated that H10 CACs 
having P/N 7010101H10 will be available for retrofit during 2016. 
Aeromexico noted that Boeing and UTC Aerospace Systems have indicated 
that P/N 7010101H09 and P/N 7010101H10 will be interchangeable.
    We agree that clarification is necessary. Future part designs might 
be acceptable as replacement parts for the part mandated by this AD, 
because those future parts should include design changes meant to 
address the unsafe condition identified in this AD. However, we do not 
agree to allow use of P/N 7010101H10 CACs, because P/N 7010101H10 is 
not an approved part for installation on Model 787 airplanes at this 
time. Therefore, under the provisions of paragraph (h) of this AD, we 
will consider requests for approval of specific parts as an alternative 
method of compliance (AMOC) with this AD if data are submitted to 
substantiate that those parts would provide an acceptable level of 
safety. We have not revised this AD in this regard.

Request To Clarify Certain Actions in Service Information

    UA asked that, for Group 1 airplanes in Work Packages 1 and 2 of 
the Work Instructions of Boeing Alert Service Bulletin B787-81205-
SB210055-00, Issue 001, dated March 12, 2015, the steps identified as 
RC (Required for Compliance) be changed to refer to all applicable 
steps within that service information instead of referring to the 
actions specified in UTC Aerospace Systems Service Bulletins 7010188-
21-6 and 7010189-21-6, both Revision 1, both dated January 30, 2015. UA 
stated that referring to the UTC Aerospace Systems service information 
forces operators to request multiple AMOCs in order to comply with the 
actions in the proposed AD.
    We agree that clarification is necessary. Although certain steps, 
which describe the access, removal, and installation of the CACs, are 
labeled as ``RC,'' the specifics of how those actions are to be 
accomplished are not mandated. The Work Instructions in Boeing Alert 
Service Bulletin B787-81205-SB210055-00, Issue 001, dated March 12, 
2015, do refer to UTC Aerospace Systems, Service Bulletins 7010188-21-6 
and 7010189-21-6, both Revision 1, both dated January 30, 2015, for 
accomplishing certain actions, but that service information is only an 
additional source of service information that operators may use (as 
indicated by the use of the words ``refer to'' in the RC step).
    UA asked that the UTC Aerospace Systems kit part number be called 
out in paragraph 3.A. under ``Parts Necessary for Each Airplane,'' in 
data module B787-A-21-00-0055-00A-934A-D, ``Material Information,'' of 
Boeing Alert Service Bulletin B787-81205-SB210055, Issue 001, dated 
March 12, 2015. UA noted that, as written, the proposed AD suggests 
that no parts are required.
    We do not agree with the commenter's request. In Boeing Alert 
Service Bulletin B787-81205-SB210055, Issue 001, dated March 12, 2015; 
Step 3.A., ``Parts Necessary for Each Airplane'' for Groups 1 and 2 
airplanes, within data module B787-A-21-00-0055-00A-934A-D, ``Material 
Information,'' identifies the parts necessary for each airplane that 
would be supplied by Boeing. Step 3.B. identifies the parts and 
materials that are supplied by operators. Although having all kit 
information in one location might provide a single list of parts 
needed, it could be confusing to determine who is responsible for 
supplying which parts. Therefore, we have made no change to this AD in 
this regard.
    UA pointed out several instances where Boeing Alert Service 
Bulletin B787-81205-SB210055, Issue 001, dated March 12, 2015, is 
referenced for certain sealing and bonding check instructions. UA 
stated that UTC Aerospace Systems Service Bulletins 7010188-21-6 and 
7010189-21-6, both Revision 1, both dated January 30, 2015, refer back 
to Boeing Alert Service Bulletin B787-81205-SB210055, Issue 001, dated 
March 12, 2015, which does not provide guidance on how to accomplish 
these actions. From these

[[Page 93797]]

statements, we infer that UA is requesting that we revise the proposed 
requirements to clarify how these actions are to be accomplished.
    We find that clarification is necessary. The Work Instructions in 
Boeing Alert Service Bulletin B787-81205-SB210055, Issue 001, dated 
March 12, 2015, specify ``The electrical surface bond and fay seal data 
is provided in the applicable 787 airplane maintenance manual (AMM) 21-
51-19, Cabin Air Compressor--Preparation Before Installation AMMs.'' 
The instructions are contained within those AMM procedures; however, 
those steps are not required for compliance with this AD because 
alternative procedures may be used. Therefore, we have made no change 
to this AD in this regard.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this 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 this AD.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin B787-81205-SB210055-00, 
Issue 001, dated March 12, 2015. This service information describes 
procedures for installing modified inboard and outboard CAC modules on 
the LH side and RH side CACTCS packs. 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.

Costs of Compliance

    We estimate that this AD affects 22 airplanes of U.S. registry.
    We estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                 Cost on U.S.
              Action                    Labor cost        Parts cost      Cost per product        operators
----------------------------------------------------------------------------------------------------------------
Modification, installation, and    Up to 54                         $0  Up to $4,590.......  Up to $100,980.
 installation test.                 work[dash]hours x
                                    $85 per hour =
                                    $4,590.
----------------------------------------------------------------------------------------------------------------

    According to the manufacturer, some of the costs of this 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, and 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 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.

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):

2016-25-21 The Boeing Company: Amendment 39-18747; Docket No. FAA-
2015-7531; Directorate Identifier 2015-NM-052-AD.

(a) Effective Date

    This AD is effective January 26, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to The Boeing Company Model 787-8 airplanes, 
certificated in any category, as identified in Boeing Alert Service 
Bulletin B787-81205-SB210055-00, Issue 001, dated March 12, 2015.

(d) Subject

    Air Transport Association (ATA) of America Code 21, Air 
conditioning.

(e) Unsafe Condition

    This AD was prompted by reports of electrical shorts of the 
motor stator wiring burning a hole through the housing of the motor 
of the cabin air compressor (CAC). We are issuing this AD to prevent 
an electrical short from burning through the housing of the motor of 
the CAC. This condition, in combination with flammable fuel vapors, 
could result in a fire in the pack bay and consequent reduced 
controllability of the airplane.

(f) Compliance

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

[[Page 93798]]

(g) Replacement of CAC Modules

    Within 5 years after the effective date of this AD, install 
modified inboard and outboard CAC modules on the left side and right 
side cabin air conditioning and temperature control system (CACTCS) 
packs, in accordance with the Accomplishment Instructions of Boeing 
Alert Service Bulletin B787-81205-SB210055-00, Issue 001, dated 
March 12, 2015.

(h) 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 (i) 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. For a repair method 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) For service information that contains steps that are labeled 
as Required for Compliance (RC), the provisions of paragraphs 
(h)(4)(i) and (h)(4)(ii) of this AD apply.
    (i) The steps labeled as RC, including substeps under an RC step 
and any figures identified in an RC step, must be done to comply 
with the AD. An AMOC is required for any deviations to RC steps, 
including substeps and identified figures.
    (ii) Steps not labeled as RC may be deviated from using accepted 
methods in accordance with the operator's maintenance or inspection 
program without obtaining approval of an AMOC, provided the RC 
steps, including substeps and identified figures, can still be done 
as specified, and the airplane can be put back in an airworthy 
condition.

(i) Related Information

    For more information about this AD, contact Eric Brown, 
Aerospace Engineer, Cabin Safety and Environmental Systems Branch, 
ANM-150S, FAA, Seattle ACO, 1601 Lind Avenue SW., Renton, WA 98057-
3356; phone: 425-917-6476; fax: 425-917-6590; email: 
[email protected].

(j) 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 B787-81205-SB210055-00, Issue 
001, dated March 12, 2015.
    (ii) Reserved.
    (3) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Contractual & Data Services 
(C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740; 
telephone 562-797-1717; Internet https://www.myboeingfleet.com.
    (4) 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.
    (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 December 6, 2016.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-30032 Filed 12-21-16; 8:45 am]
BILLING CODE 4910-13-P



                                                            Federal Register / Vol. 81, No. 246 / Thursday, December 22, 2016 / Rules and Regulations                                       93795

                                           can either limit the scope of your                       Government Information Services, and                  https://www.myboeingfleet.com. You
                                           request so that it can be processed                      you can file an administrative appeal.                may view this referenced service
                                           within the statutory time limit or agree                 Your appeal must be in writing and                    information at the FAA, Transport
                                           to an alternative time frame for                         must be filed within 90 days from                     Airplane Directorate, 1601 Lind Avenue
                                           processing your request. In such cases,                  receipt of the initial determination (in              SW., Renton, WA. For information on
                                           NCUA will make available its FOIA                        cases of denials of the entire request or             the availability of this material at the
                                           Public Liaison and notify the requester                  denials of a fee waiver or reduction), or             FAA, call 425–227–1221. It is also
                                           of the right to seek dispute resolution                  from receipt of any records being made                available on the Internet at http://
                                           services from the Office of Government                   available pursuant to the initial                     www.regulations.gov by searching for
                                           Information Services.                                    determination (in cases of partial                    and locating Docket No. FAA–2015–
                                           ■ 8. Revise § 792.17 to read as follows:                 denials). In the response to your initial             7531.
                                                                                                    request, the Freedom of Information Act               Examining the AD Docket
                                           § 792.17 What can I do if the time limit                 Officer or the Inspector General (or
                                           passes and I still have not received a                                                                           You may examine the AD docket on
                                           response?
                                                                                                    designee), will notify you that you may
                                                                                                    appeal any adverse determination to the               the Internet at http://
                                              (a) If NCUA does not comply with the                  Office of General Counsel. The General                www.regulations.gov by searching for
                                           time limits under § 792.15, or as                        Counsel, or designee, as set forth in this            and locating Docket No. FAA–2015–
                                           extended under § 792.16, you do not                      paragraph, will:                                      7531; or in person at the Docket
                                           have to pay search fees; requesters                                                                            Management Facility between 9 a.m.
                                           qualifying for free search fees will not                 *     *     *     *     *                             and 5 p.m., Monday through Friday,
                                                                                                    [FR Doc. 2016–30748 Filed 12–21–16; 8:45 am]
                                           have to pay duplication fees. However,                                                                         except Federal holidays. The AD docket
                                                                                                    BILLING CODE 7535–01–P
                                           if NCUA has extended the time limits                                                                           contains this AD, the regulatory
                                           under § 792.16 and more than 5,000                                                                             evaluation, any comments received, and
                                           pages are necessary to respond to the                                                                          other information. The address for the
                                           request, NCUA may charge you search                      DEPARTMENT OF TRANSPORTATION                          Docket Office (phone: 800–647–5527) is
                                           fees (or for requesters qualifying for free                                                                    Docket Management Facility, U.S.
                                                                                                    Federal Aviation Administration
                                           search fees, duplication fees), if NCUA                                                                        Department of Transportation, Docket
                                           has discussed with you via written mail,                                                                       Operations, M–30, West Building
                                                                                                    14 CFR Part 39
                                           electronic mail, or telephone (or made                                                                         Ground Floor, Room W12–140, 1200
                                           not less than 3 good-faith attempts to do                [Docket No. FAA–2015–7531; Directorate                New Jersey Avenue SE., Washington,
                                           so) how you could effectively limit the                  Identifier 2015–NM–052–AD; Amendment                  DC 20590.
                                           scope of the request.                                    39–18747; AD 2016–25–21]                              FOR FURTHER INFORMATION CONTACT: Eric
                                              (b) You can seek assistance from the                  RIN 2120–AA64                                         Brown, Aerospace Engineer, Cabin
                                           FOIA Public Liaison or dispute                                                                                 Safety and Environmental Systems
                                           resolution services from the Office of                   Airworthiness Directives The Boeing                   Branch, ANM–150S, FAA, Seattle
                                           Government Information Services. You                     Company Airplanes                                     Aircraft Certification Office (ACO), 1601
                                           also can file suit against NCUA because                                                                        Lind Avenue SW., Renton, WA 98057–
                                           you will be deemed to have exhausted                     AGENCY:  Federal Aviation
                                                                                                                                                          3356; phone: 425–917–6476; fax: 425–
                                           your administrative remedies if NCUA                     Administration (FAA), DOT.
                                                                                                                                                          917–6590; email: eric.m.brown@faa.gov.
                                           fails to comply with the time limit                      ACTION: Final rule.
                                                                                                                                                          SUPPLEMENTARY INFORMATION:
                                           provisions of this subpart. If NCUA can
                                                                                                    SUMMARY:   We are adopting a new                      Discussion
                                           show that exceptional circumstances
                                                                                                    airworthiness directive (AD) for certain
                                           exist and that it is exercising due                                                                              We issued a notice of proposed
                                                                                                    The Boeing Company Model 787–8
                                           diligence in responding to your request,                                                                       rulemaking (NPRM) to amend 14 CFR
                                                                                                    airplanes. This AD was prompted by
                                           the court may retain jurisdiction and                                                                          part 39 by adding an AD that would
                                                                                                    reports of electrical shorts of the motor
                                           allow NCUA to complete its review of                                                                           apply to certain The Boeing Company
                                                                                                    stator wiring burning a hole through the
                                           the records. You may have to pay search                                                                        Model 787–8 airplanes. The NPRM
                                                                                                    housing of the motor of the cabin air
                                           or duplication fees if a court has                                                                             published in the Federal Register on
                                                                                                    compressor (CAC). This AD requires
                                           determined that exceptional                                                                                    December 29, 2015 (80 FR 81220) (‘‘the
                                                                                                    installing modified inboard and
                                           circumstances exist and has extended                                                                           NPRM’’). The NPRM was prompted by
                                                                                                    outboard CAC modules on the left-hand
                                           the time limits for NCUA’s response by                                                                         reports of electrical shorts of the motor
                                                                                                    (LH) side and right-hand (RH) side cabin
                                           a court order. In determining whether                                                                          stator wiring burning a hole through the
                                                                                                    air conditioning and temperature
                                           exceptional circumstances exist, the                                                                           housing of the motor of the CAC. The
                                                                                                    control system (CACTCS) packs. We are
                                           court may consider your refusal to                                                                             NPRM proposed to require installing
                                                                                                    issuing this AD to prevent the unsafe
                                           modify the scope of your request or                                                                            modified inboard and outboard CAC
                                                                                                    condition on these products.
                                           arrange an alternative time frame for                                                                          modules on the LH side and RH side
                                                                                                    DATES: This AD is effective January 26,               CACTCS packs. We are issuing this AD
                                           processing after being given the
                                           opportunity to do so by NCUA, when it                    2017.                                                 to prevent an electrical short from
                                           notifies you of the existence of unusual                    The Director of the Federal Register               burning through the housing of the
                                           circumstances as set forth in § 792.16.                  approved the incorporation by reference               motor of the CAC. This condition, in
                                                                                                    of a certain publication listed in this AD            combination with flammable fuel
                                           ■ 9. In § 792.28, revise the introductory
                                                                                                    as of January 26, 2017.                               vapors, could result in a fire in the pack
                                           text to read as follows:
                                                                                                    ADDRESSES: For service information                    bay and consequent reduced
Lhorne on DSK30JT082PROD with RULES




                                           § 792.28 What if I am not satisfied with the             identified in this final rule, contact                controllability of the airplane.
                                           response I receive?                                      Boeing Commercial Airplanes,
                                             If you are not satisfied with NCUA’s                   Attention: Contractual & Data Services                Comments
                                           response to your request, you can seek                   (C&DS), 2600 Westminster Blvd., MC                      We gave the public the opportunity to
                                           dispute resolution services from the                     110–SK57, Seal Beach, CA 90740;                       participate in developing this AD. The
                                           FOIA Public Liaison and the Office of                    telephone 562–797–1717; Internet                      following presents the comments


                                      VerDate Sep<11>2014    15:15 Dec 21, 2016   Jkt 241001   PO 00000   Frm 00005   Fmt 4700   Sfmt 4700   E:\FR\FM\22DER1.SGM   22DER1


                                           93796            Federal Register / Vol. 81, No. 246 / Thursday, December 22, 2016 / Rules and Regulations

                                           received on the NPRM and the FAA’s                       proposed, represents the maximum                      both dated January 30, 2015. UA stated
                                           response to each comment.                                interval of time allowable for the                    that referring to the UTC Aerospace
                                                                                                    affected airplanes to continue to safely              Systems service information forces
                                           Support for the NPRM
                                                                                                    operate before the CAC replacements are               operators to request multiple AMOCs in
                                             United Airlines (UA) stated that it                    accomplished. Airplanes affected by                   order to comply with the actions in the
                                           agrees with the proposed compliance                      this AD will undergo at least one                     proposed AD.
                                           time.                                                    maintenance check (C-check) within the                   We agree that clarification is
                                                                                                    required compliance time (5 years after               necessary. Although certain steps,
                                           Request To Clarify the Unsafe
                                                                                                    the effective date of this AD); the                   which describe the access, removal, and
                                           Condition
                                                                                                    replacement can be done at that time.                 installation of the CACs, are labeled as
                                              Boeing asked that we clarify the                      Therefore, we have made no change to                  ‘‘RC,’’ the specifics of how those actions
                                           unsafe condition in the NPRM to specify                  this AD in this regard.                               are to be accomplished are not
                                           that for a fire to occur in the pack bay,                                                                      mandated. The Work Instructions in
                                           an electrical short would have to burn                   Request To Use Alternative Part                       Boeing Alert Service Bulletin B787–
                                           through the housing of the CAC motor                        Aeromexico asked if installing an H10              81205–SB210055–00, Issue 001, dated
                                           in combination with the presence of                      CAC having part number (P/N)                          March 12, 2015, do refer to UTC
                                           flammable fluid vapors. Boeing stressed                  7010101H10 could be considered as an                  Aerospace Systems, Service Bulletins
                                           that the top-level event requires both an                alternative to installing H09 CAC parts               7010188–21–6 and 7010189–21–6, both
                                           ignition source and flammable fluid                      having P/N 7010101H09. Aeromexico                     Revision 1, both dated January 30, 2015,
                                           vapors.                                                  stated that Boeing Alert Service Bulletin             for accomplishing certain actions, but
                                              We agree with the commenter’s                         B787–81205–SB210055–00, Issue 001,                    that service information is only an
                                           request for the reason provided. We                      dated March 12, 2015, specifies                       additional source of service information
                                           have revised the unsafe condition in the                 installing the H09 CAC, but UTC                       that operators may use (as indicated by
                                           Discussion section and paragraph (e) of                  Aerospace Systems (the parts vendor)                  the use of the words ‘‘refer to’’ in the RC
                                           this AD accordingly.                                     stated that there are no H09 CACs                     step).
                                                                                                    presently available. Aeromexico added                    UA asked that the UTC Aerospace
                                           Requests To Increase Work-Hour                           that UTC Aerospace Systems indicated                  Systems kit part number be called out
                                           Estimate                                                 that H10 CACs having P/N 7010101H10                   in paragraph 3.A. under ‘‘Parts
                                              Boeing and Japan Airlines (JAL) asked                 will be available for retrofit during 2016.           Necessary for Each Airplane,’’ in data
                                           that we increase the work-hour estimate                  Aeromexico noted that Boeing and UTC                  module B787–A–21–00–0055–00A–
                                           in the ‘‘Costs of Compliance’’ section of                Aerospace Systems have indicated that                 934A–D, ‘‘Material Information,’’ of
                                           the NPRM. Boeing stated that Boeing                      P/N 7010101H09 and P/N 7010101H10                     Boeing Alert Service Bulletin B787–
                                           Alert Service Bulletin B787–81205–                       will be interchangeable.                              81205–SB210055, Issue 001, dated
                                           SB210055–00, Issue 001, dated March                         We agree that clarification is                     March 12, 2015. UA noted that, as
                                           12, 2015, specifies 25.25 work-hours for                 necessary. Future part designs might be               written, the proposed AD suggests that
                                           the LH side pack replacement and 28.25                   acceptable as replacement parts for the               no parts are required.
                                           work-hours for the RH side pack                          part mandated by this AD, because                        We do not agree with the commenter’s
                                           replacement. Boeing added that the                       those future parts should include design              request. In Boeing Alert Service Bulletin
                                           NPRM should either specify 30 work-                      changes meant to address the unsafe                   B787–81205–SB210055, Issue 001,
                                           hours per side or 60 work-hours per                      condition identified in this AD.                      dated March 12, 2015; Step 3.A., ‘‘Parts
                                           airplane. JAL stated that the                            However, we do not agree to allow use                 Necessary for Each Airplane’’ for
                                           replacement for each pack specified in                   of P/N 7010101H10 CACs, because P/N                   Groups 1 and 2 airplanes, within data
                                           the proposed AD requires more than 25                    7010101H10 is not an approved part for                module B787–A–21–00–0055–00A–
                                           work-hours, as specified in the                          installation on Model 787 airplanes at                934A–D, ‘‘Material Information,’’
                                           referenced service information.                          this time. Therefore, under the                       identifies the parts necessary for each
                                              We agree. We have confirmed that the                  provisions of paragraph (h) of this AD,               airplane that would be supplied by
                                           proposed work-hour estimate should be                    we will consider requests for approval                Boeing. Step 3.B. identifies the parts
                                           increased. Therefore, we have increased                  of specific parts as an alternative                   and materials that are supplied by
                                           the work-hour estimate in the ‘‘Costs of                 method of compliance (AMOC) with                      operators. Although having all kit
                                           Compliance’’ section of this final rule                  this AD if data are submitted to                      information in one location might
                                           from ‘‘up to 30 work-hours’’ to ‘‘up to                  substantiate that those parts would                   provide a single list of parts needed, it
                                           54 work-hours’’ for accomplishing the                    provide an acceptable level of safety.                could be confusing to determine who is
                                           required actions.                                        We have not revised this AD in this                   responsible for supplying which parts.
                                                                                                    regard.                                               Therefore, we have made no change to
                                           Request To Extend Compliance Time                                                                              this AD in this regard.
                                             JAL asked that the proposed                            Request To Clarify Certain Actions in                    UA pointed out several instances
                                           compliance time for the CAC                              Service Information                                   where Boeing Alert Service Bulletin
                                           replacements specified in the NPRM be                       UA asked that, for Group 1 airplanes               B787–81205–SB210055, Issue 001,
                                           extended so the actions can be done                      in Work Packages 1 and 2 of the Work                  dated March 12, 2015, is referenced for
                                           during scheduled heavy maintenance.                      Instructions of Boeing Alert Service                  certain sealing and bonding check
                                           JAL stated that the replacement for each                 Bulletin B787–81205–SB210055–00,                      instructions. UA stated that UTC
                                           pack specified in the proposed AD                        Issue 001, dated March 12, 2015, the                  Aerospace Systems Service Bulletins
                                           requires more than 25 work-hours,                        steps identified as RC (Required for                  7010188–21–6 and 7010189–21–6, both
Lhorne on DSK30JT082PROD with RULES




                                           which would necessitate a longer                         Compliance) be changed to refer to all                Revision 1, both dated January 30, 2015,
                                           compliance time.                                         applicable steps within that service                  refer back to Boeing Alert Service
                                             We do not agree with the commenter’s                   information instead of referring to the               Bulletin B787–81205–SB210055, Issue
                                           request to extend the compliance time                    actions specified in UTC Aerospace                    001, dated March 12, 2015, which does
                                           for the CAC replacements. We have                        Systems Service Bulletins 7010188–21–                 not provide guidance on how to
                                           determined that the compliance time, as                  6 and 7010189–21–6, both Revision 1,                  accomplish these actions. From these


                                      VerDate Sep<11>2014    15:15 Dec 21, 2016   Jkt 241001   PO 00000   Frm 00006   Fmt 4700   Sfmt 4700   E:\FR\FM\22DER1.SGM   22DER1


                                                            Federal Register / Vol. 81, No. 246 / Thursday, December 22, 2016 / Rules and Regulations                                                        93797

                                           statements, we infer that UA is                           Conclusion                                                    Related Service Information Under 1
                                           requesting that we revise the proposed                                                                                  CFR Part 51
                                           requirements to clarify how these                           We reviewed the relevant data,
                                                                                                     considered the comments received, and                            We reviewed Boeing Alert Service
                                           actions are to be accomplished.                                                                                         Bulletin B787–81205–SB210055–00,
                                                                                                     determined that air safety and the
                                             We find that clarification is necessary.                                                                              Issue 001, dated March 12, 2015. This
                                                                                                     public interest require adopting this AD
                                           The Work Instructions in Boeing Alert                                                                                   service information describes
                                           Service Bulletin B787–81205–                              with the changes described previously
                                                                                                                                                                   procedures for installing modified
                                           SB210055, Issue 001, dated March 12,                      and minor editorial changes. We have
                                                                                                                                                                   inboard and outboard CAC modules on
                                           2015, specify ‘‘The electrical surface                    determined that these minor changes:                          the LH side and RH side CACTCS packs.
                                           bond and fay seal data is provided in                       • Are consistent with the intent that                       This service information is reasonably
                                           the applicable 787 airplane maintenance                   was proposed in the NPRM for                                  available because the interested parties
                                           manual (AMM) 21–51–19, Cabin Air                          correcting the unsafe condition; and                          have access to it through their normal
                                           Compressor—Preparation Before                               • Do not add any additional burden                          course of business or by the means
                                           Installation AMMs.’’ The instructions                     upon the public than was already                              identified in the ADDRESSES section.
                                           are contained within those AMM
                                                                                                     proposed in the NPRM                                          Costs of Compliance
                                           procedures; however, those steps are not
                                           required for compliance with this AD                        We also determined that these                                 We estimate that this AD affects 22
                                           because alternative procedures may be                     changes will not increase the economic                        airplanes of U.S. registry.
                                           used. Therefore, we have made no                          burden on any operator or increase the                          We estimate the following costs to
                                           change to this AD in this regard.                         scope of this AD.                                             comply with this AD:
                                                                                                                   ESTIMATED COSTS
                                                        Action                                 Labor cost                  Parts cost                  Cost per product                     Cost on U.S. operators

                                           Modification, installation, and        Up to 54 work-hours × $85                             $0     Up to $4,590 ..........................   Up to $100,980.
                                            installation test.                      per hour = $4,590.



                                              According to the manufacturer, some                    government and the States, or on the                          § 39.13     [Amended]
                                           of the costs of this AD may be covered                    distribution of power and                                     ■ 2. The FAA amends § 39.13 by adding
                                           under warranty, thereby reducing the                      responsibilities among the various                            the following new airworthiness
                                           cost impact on affected individuals. We                   levels of government.                                         directive (AD):
                                           do not control warranty coverage for                        For the reasons discussed above, I
                                           affected individuals. As a result, we                                                                                   2016–25–21 The Boeing Company:
                                                                                                     certify that this AD:                                             Amendment 39–18747; Docket No.
                                           have included all costs in our cost
                                                                                                       (1) Is not a ‘‘significant regulatory                           FAA–2015–7531; Directorate Identifier
                                           estimate.
                                                                                                     action’’ under Executive Order 12866,                             2015–NM–052–AD.
                                           Authority for This Rulemaking                                                                                           (a) Effective Date
                                                                                                       (2) Is not a ‘‘significant rule’’ under
                                              Title 49 of the United States Code                     the DOT Regulatory Policies and                                 This AD is effective January 26, 2017.
                                           specifies the FAA’s authority to issue                    Procedures (44 FR 11034, February 26,
                                           rules on aviation safety. Subtitle I,                                                                                   (b) Affected ADs
                                                                                                     1979),
                                           section 106, describes the authority of                                                                                   None.
                                           the FAA Administrator. Subtitle VII:                        (3) Will not affect intrastate aviation
                                                                                                     in Alaska, and                                                (c) Applicability
                                           Aviation Programs, describes in more
                                                                                                                                                                      This AD applies to The Boeing Company
                                           detail the scope of the Agency’s                            (4) Will not have a significant
                                                                                                                                                                   Model 787–8 airplanes, certificated in any
                                           authority.                                                economic impact, positive or negative,                        category, as identified in Boeing Alert
                                              We are issuing this rulemaking under                   on a substantial number of small entities                     Service Bulletin B787–81205–SB210055–00,
                                           the authority described in Subtitle VII,                  under the criteria of the Regulatory                          Issue 001, dated March 12, 2015.
                                           Part A, Subpart III, and Section 44701:                   Flexibility Act.
                                           ‘‘General requirements.’’ Under that                                                                                    (d) Subject
                                           section, Congress charges the FAA with                    List of Subjects in 14 CFR Part 39                              Air Transport Association (ATA) of
                                           promoting safe flight of civil aircraft in                                                                              America Code 21, Air conditioning.
                                                                                                       Air transportation, Aircraft, Aviation
                                           air commerce by prescribing regulations                   safety, Incorporation by reference,                           (e) Unsafe Condition
                                           for practices, methods, and procedures                    Safety.                                                          This AD was prompted by reports of
                                           the Administrator finds necessary for                                                                                   electrical shorts of the motor stator wiring
                                           safety in air commerce. This regulation                   Adoption of the Amendment                                     burning a hole through the housing of the
                                           is within the scope of that authority                                                                                   motor of the cabin air compressor (CAC). We
                                           because it addresses an unsafe condition                    Accordingly, under the authority                            are issuing this AD to prevent an electrical
                                           that is likely to exist or develop on                     delegated to me by the Administrator,                         short from burning through the housing of
                                           products identified in this rulemaking                    the FAA amends 14 CFR part 39 as                              the motor of the CAC. This condition, in
                                           action.                                                   follows:                                                      combination with flammable fuel vapors,
                                                                                                                                                                   could result in a fire in the pack bay and
Lhorne on DSK30JT082PROD with RULES




                                           Regulatory Findings                                       PART 39—AIRWORTHINESS                                         consequent reduced controllability of the
                                             This AD will not have federalism                        DIRECTIVES                                                    airplane.
                                           implications under Executive Order                                                                                      (f) Compliance
                                           13132. This AD will not have a                            ■ 1. The authority citation for part 39
                                                                                                                                                                      Comply with this AD within the
                                           substantial direct effect on the States, on               continues to read as follows:                                 compliance times specified, unless already
                                           the relationship between the national                         Authority: 49 U.S.C. 106(g), 40113, 44701.                done.



                                      VerDate Sep<11>2014    15:15 Dec 21, 2016   Jkt 241001    PO 00000    Frm 00007   Fmt 4700   Sfmt 4700     E:\FR\FM\22DER1.SGM         22DER1


                                           93798            Federal Register / Vol. 81, No. 246 / Thursday, December 22, 2016 / Rules and Regulations

                                           (g) Replacement of CAC Modules                           (IBR) of the service information listed in this       which could cause these components to
                                              Within 5 years after the effective date of            paragraph under 5 U.S.C. 552(a) and 1 CFR             fail. We are issuing this AD to require
                                           this AD, install modified inboard and                    part 51.                                              actions to address the unsafe condition
                                           outboard CAC modules on the left side and                   (2) You must use this service information
                                                                                                                                                          on these products.
                                           right side cabin air conditioning and                    as applicable to do the actions required by
                                                                                                    this AD, unless the AD specifies otherwise.           DATES: This AD is effective December
                                           temperature control system (CACTCS) packs,
                                           in accordance with the Accomplishment                       (i) Boeing Alert Service Bulletin B787–            22, 2016.
                                           Instructions of Boeing Alert Service Bulletin            81205–SB210055–00, Issue 001, dated March               The Director of the Federal Register
                                           B787–81205–SB210055–00, Issue 001, dated                 12, 2015.                                             approved the incorporation by reference
                                           March 12, 2015.                                             (ii) Reserved.                                     of a certain publication listed in this AD
                                                                                                       (3) For service information identified in          as of October 24, 2016 (81 FR 64053,
                                           (h) Alternative Methods of Compliance                    this AD, contact Boeing Commercial
                                           (AMOCs)                                                                                                        September 19, 2016).
                                                                                                    Airplanes, Attention: Contractual & Data
                                                                                                                                                            We must receive comments on this
                                              (1) The Manager, Seattle Aircraft                     Services (C&DS), 2600 Westminster Blvd.,
                                                                                                    MC 110–SK57, Seal Beach, CA 90740;                    AD by February 6, 2017.
                                           Certification Office (ACO), FAA, has the
                                           authority to approve AMOCs for this AD, if               telephone 562–797–1717; Internet https://             ADDRESSES: You may send comments by
                                           requested using the procedures found in 14               www.myboeingfleet.com.                                any of the following methods:
                                           CFR 39.19. In accordance with 14 CFR 39.19,                 (4) You may view this referenced service             • Federal eRulemaking Portal: Go to
                                           send your request to your principal inspector            information at the FAA, Transport Airplane            http://www.regulations.gov. Follow the
                                           or local Flight Standards District Office, as            Directorate, 1601 Lind Avenue SW., Renton,            instructions for submitting comments.
                                           appropriate. If sending information directly             WA. For information on the availability of              • Fax: (202) 493–2251.
                                           to the manager of the ACO, send it to the                this material at the FAA, call 425–227–1221.             • Mail: U.S. Department of
                                           attention of the person identified in                       (5) You may view this service information
                                           paragraph (i) of this AD. Information may be             that is incorporated by reference at the
                                                                                                                                                          Transportation, Docket Operations, M–
                                           emailed to: 9-ANM-Seattle-ACO-AMOC-                      National Archives and Records                         30, West Building Ground Floor, Room
                                           Requests@faa.gov.                                        Administration (NARA). For information on             W12–140, 1200 New Jersey Avenue SE.,
                                              (2) Before using any approved AMOC,                   the availability of this material at NARA, call       Washington, DC 20590.
                                           notify your appropriate principal inspector,             202–741–6030, or go to: http://                          • Hand Delivery: U.S. Department of
                                           or lacking a principal inspector, the manager            www.archives.gov/federal-register/cfr/ibr-            Transportation, Docket Operations, M–
                                           of the local flight standards district office/           locations.html.                                       30, West Building Ground Floor, Room
                                           certificate holding district office.                                                                           W12–140, 1200 New Jersey Avenue SE.,
                                                                                                      Issued in Renton, Washington, on
                                              (3) An AMOC that provides an acceptable                                                                     Washington, DC 20590, between 9 a.m.
                                                                                                    December 6, 2016.
                                           level of safety may be used for any repair,
                                           modification, or alteration required by this             Dionne Palermo,                                       and 5 p.m., Monday through Friday,
                                           AD if it is approved by the Boeing                       Acting Manager, Transport Airplane                    except Federal holidays.
                                           Commercial Airplanes Organization                        Directorate, Aircraft Certification Service.             For service information identified in
                                           Designation Authorization (ODA) that has                 [FR Doc. 2016–30032 Filed 12–21–16; 8:45 am]          this AD, contact Viking Air Limited
                                           been authorized by the Manager, Seattle                  BILLING CODE 4910–13–P
                                                                                                                                                          Technical Support, 1959 De Havilland
                                           ACO, to make those findings. For a repair                                                                      Way, Sidney, British Columbia, Canada,
                                           method to be approved, the repair method,                                                                      V8L 5V5; telephone: (North America)
                                           modification deviation, or alteration                                                                          (800) 663–8444; fax: (250) 656–0673;
                                                                                                    DEPARTMENT OF TRANSPORTATION
                                           deviation must meet the certification basis of                                                                 email: technical.support@vikingair.com;
                                           the airplane, and the approval must
                                                                                                    Federal Aviation Administration                       Internet: http://www.vikingair.com/
                                           specifically refer to this AD.
                                              (4) For service information that contains                                                                   support/service-bulletins. You may
                                           steps that are labeled as Required for                   14 CFR Part 39                                        review copies of the referenced service
                                           Compliance (RC), the provisions of                                                                             information at the FAA, Small Airplane
                                                                                                    [Docket No. FAA–2016–9527; Directorate
                                           paragraphs (h)(4)(i) and (h)(4)(ii) of this AD           Identifier 2016–CE–036–AD; Amendment                  Directorate, 901 Locust, Kansas City,
                                           apply.                                                   39–18748; AD 2016–25–22]                              Missouri 64106. For information on the
                                              (i) The steps labeled as RC, including                                                                      availability of this material at the FAA,
                                           substeps under an RC step and any figures                RIN 2120–AA64                                         call (816) 329–4148. It is also available
                                           identified in an RC step, must be done to                                                                      on the Internet at http://
                                           comply with the AD. An AMOC is required                  Airworthiness Directives; Viking Air
                                                                                                                                                          www.regulations.gov by searching for
                                           for any deviations to RC steps, including                Limited Airplanes
                                           substeps and identified figures.                                                                               locating Docket No. FAA–2016–9527.
                                              (ii) Steps not labeled as RC may be                   AGENCY:  Federal Aviation                             Examining the AD Docket
                                           deviated from using accepted methods in                  Administration (FAA), DOT.
                                           accordance with the operator’s maintenance                                                                       You may examine the AD docket on
                                                                                                    ACTION: Final rule; request for
                                           or inspection program without obtaining                                                                        the Internet at http://
                                                                                                    comments.
                                           approval of an AMOC, provided the RC steps,                                                                    www.regulations.gov by searching for
                                           including substeps and identified figures, can           SUMMARY:   We are adopting a new                      and locating Docket No. FAA–2016–
                                           still be done as specified, and the airplane                                                                   9527; or in person at the Docket
                                                                                                    airworthiness directive (AD) for all
                                           can be put back in an airworthy condition.                                                                     Management Facility between 9 a.m.
                                                                                                    Viking Air Limited Models DHC–2 Mk.
                                           (i) Related Information                                  I, DHC–2 Mk. II, and DHC–2 Mk. III                    and 5 p.m., Monday through Friday,
                                              For more information about this AD,                   airplanes that supersedes AD 2016–19–                 except Federal holidays. The AD docket
                                           contact Eric Brown, Aerospace Engineer,                  08. This AD results from mandatory                    contains this AD, the regulatory
                                           Cabin Safety and Environmental Systems                   continuing airworthiness information                  evaluation, any comments received, and
                                           Branch, ANM–150S, FAA, Seattle ACO, 1601                 (MCAI) issued by the aviation authority               other information. The street address for
Lhorne on DSK30JT082PROD with RULES




                                           Lind Avenue SW., Renton, WA 98057–3356;                  of another country to identify and                    the Docket Office (telephone (800) 647–
                                           phone: 425–917–6476; fax: 425–917–6590;                                                                        5527) is in the ADDRESSES section.
                                                                                                    correct an unsafe condition on an
                                           email: eric.m.brown@faa.gov.                                                                                   Comments will be available in the AD
                                                                                                    aviation product. The MCAI describes
                                           (j) Material Incorporated by Reference                   the unsafe condition as corrosion of the              docket shortly after receipt.
                                              (1) The Director of the Federal Register              elevator control rod and of the elevator              FOR FURTHER INFORMATION CONTACT: Aziz
                                           approved the incorporation by reference                  actuating lever on the control column,                Ahmed, Aerospace Engineer, FAA, New


                                      VerDate Sep<11>2014    15:15 Dec 21, 2016   Jkt 241001   PO 00000   Frm 00008   Fmt 4700   Sfmt 4700   E:\FR\FM\22DER1.SGM   22DER1



Document Created: 2016-12-21 23:52:01
Document Modified: 2016-12-21 23:52:01
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective January 26, 2017.
ContactEric Brown, 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: 425-917-6476; fax: 425-917-6590; email: [email protected]
FR Citation81 FR 93795 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

2025 Federal Register | Disclaimer | Privacy Policy
USC | CFR | eCFR