81_FR_77062 81 FR 76848 - Airworthiness Directives; The Boeing Company Airplanes

81 FR 76848 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 81, Issue 214 (November 4, 2016)

Page Range76848-76851
FR Document2016-26629

We are adopting a new airworthiness directive (AD) for all The Boeing Company Model MD-90-30 airplanes. This AD requires a detailed inspection of the forward and aft surfaces on the left and right sides at the cant station 1520 bulkhead for any crack in the upper cap and (cap) doubler, webs and doublers, stiffeners, and the lower tee cap between longerons 3 through 11, and repairs if necessary. This AD was prompted by a report of cracking in various structures in the fuselage cant station 1520 bulkhead. We are issuing this AD to detect and correct cracking in the bulkhead, which could result in reduced structural integrity of the airplane.

Federal Register, Volume 81 Issue 214 (Friday, November 4, 2016)
[Federal Register Volume 81, Number 214 (Friday, November 4, 2016)]
[Rules and Regulations]
[Pages 76848-76851]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2016-26629]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-9306; Directorate Identifier 2016-NM-169-AD; 
Amendment 39-18707; AD 2016-22-18]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule; request for comments.

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

SUMMARY: We are adopting a new airworthiness directive (AD) for all The 
Boeing Company Model MD-90-30 airplanes. This AD requires a detailed 
inspection of the forward and aft surfaces on the left and right sides 
at the cant station 1520 bulkhead for any crack in the upper cap and 
(cap) doubler, webs and doublers, stiffeners, and the lower tee cap 
between longerons 3 through 11, and repairs if necessary. This AD was 
prompted by a report of cracking in various structures in the fuselage 
cant station 1520 bulkhead. We are issuing this AD to detect and 
correct cracking in the bulkhead, which could result in reduced 
structural integrity of the airplane.

DATES: This AD is effective November 21, 2016.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of November 21, 
2016.
    We must receive comments on this AD by December 19, 2016.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE., Washington, DC 20590.
     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this final rule, contact 
Boeing Commercial Airplanes, Attention: Contractual & Data Services 
(C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600; 
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-2016-9306.

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-2016-
9306; 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 street address for the Docket Office (phone: 
800-647-5527) is in the ADDRESSES section. Comments will be available 
in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: George Garrido, Aerospace Engineer, 
Airframe Branch, ANM-120L, FAA, Los Angeles Aircraft Certification 
Office

[[Page 76849]]

(ACO), 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-
627-5232; fax: 562-627-5210; email: [email protected].

SUPPLEMENTARY INFORMATION: 

Discussion

    We have received a report indicating an operator found cracking of 
various structures in the fuselage cant station 1520 bulkhead on a 
Model MD-90-30 airplane. The cracks were in the upper left area of the 
bulkhead, between longerons 5 and 10, in the web, lower tee cap, and 
the upper cap and (cap) doubler. The affected airplane had accumulated 
52,993 total flight hours and 28,718 total flight cycles. Boeing 
analysis determined that the operational and limit loads cannot 
duplicate this condition, and the root cause is suspected to be the 
result of a high load event based on service experience. Cracking of 
the bulkhead, if not detected and corrected, could result in the 
inability of the structure to sustain limit loads, and consequent 
reduced structural integrity of the airplane. We are issuing this AD to 
correct the unsafe condition on these products.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin MD90-53A037, dated 
September 19, 2016. The service information describes procedures for a 
detailed inspection of the forward and aft surfaces on the left and 
right sides at cant station 1520 bulkhead for any crack in the upper 
cap and (cap) doubler, webs and doublers, stiffeners, and the lower tee 
cap between longerons 3 through 11, and repairs. 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.

FAA's Determination

    We are issuing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type design.

AD Requirements

    This AD requires accomplishing the actions specified in the service 
information described previously, except as discussed under 
``Differences Between this Proposed AD and the Service Information.'' 
For information on the procedures and compliance times, see this 
service information at http://www.regulations.gov by searching for and 
locating Docket No. FAA-2016-9306.

Differences Between This Proposed AD and the Service Information

    Boeing Alert Service Bulletin MD90-53A037, dated September 19, 
2016, specifies to contact the manufacturer for certain instructions, 
but this AD would require accomplishment of repair methods, 
modification deviations, and alteration deviations in one of the 
following ways:
     In accordance with a method that we approve; or
     Using data that meet the certification basis of the 
airplane, and that have been approved by the Boeing Commercial 
Airplanes Organization Designation Authorization (ODA) whom we have 
authorized to make those findings.

FAA's Justification and Determination of the Effective Date

    An unsafe condition exists that requires the immediate adoption of 
this AD. The FAA has found that the risk to the flying public justifies 
waiving notice and comment prior to adoption of this rule because 
undetected cracking of the bulkhead may result in the inability of the 
structure to sustain limit loads, and consequent reduced structural 
integrity of the airplane. Therefore, we find that notice and 
opportunity for prior public comment are impracticable and that good 
cause exists for making this amendment effective in less than 30 days.

Comments Invited

    This AD is a final rule that involves requirements affecting flight 
safety and was not preceded by notice and an opportunity for public 
comment. However, we invite you to send any written data, views, or 
arguments about this AD. Send your comments to an address listed under 
the ADDRESSES section. Include the docket number FAA-2016-9306 and 
Directorate Identifier 2016-NM-169-AD at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this AD. We will 
consider all comments received by the closing date and may amend this 
AD because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this AD.

Costs of Compliance

    We estimate that this AD affects 71 airplanes of U.S. registry. We 
estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                    Cost per       Cost on U.S.
             Action                       Labor cost              Parts cost        product         operators
----------------------------------------------------------------------------------------------------------------
Detailed inspection............  2 work-hours x $85 per hour               $0             $170          $12,070
                                  = $170.
----------------------------------------------------------------------------------------------------------------

    We have received no definitive data that would enable us to provide 
cost estimates for the on-condition actions specified in this AD.

Authority for This Rulemaking

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

Regulatory Findings

    This AD will not have federalism implications under Executive Order 
13132. This AD will not have a substantial direct effect on the States, 
on the relationship between the national government and the States, or 
on the

[[Page 76850]]

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):

2016-22-18 The Boeing Company: Amendment 39-18707; Docket No. FAA-
2016-9306; Directorate Identifier 2016-NM-169-AD.

(a) Effective Date

    This AD is effective November 21, 2016.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all The Boeing Company Model MD-90-30 
airplanes, certificated in any category.

(d) Subject

    Air Transport Association (ATA) of America Code 53, Fuselage.

(e) Unsafe Condition

    This AD was prompted by a report of cracking in various 
structures in the fuselage cant station 1520 bulkhead. We are 
issuing this AD to detect and correct cracking in the bulkhead, 
which could result in reduced structural integrity of the airplane.

(f) Compliance

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

(g) Detailed Inspection of the Cant Station 1520 Bulkhead

    At the applicable time specified in paragraph 1.E., 
``Compliance,'' of Boeing Alert Service Bulletin MD90-53A037, dated 
September 19, 2016, except as required by paragraph (j) of this AD: 
On the left and right sides at the cant station 1520 bulkhead, do a 
detailed inspection of the forward and aft surfaces, for any crack 
in the upper cap and (cap) doubler, webs and doublers, stiffeners, 
and the lower tee cap between longerons 3 through 11, in accordance 
with the Accomplishment Instructions of Boeing Alert Service 
Bulletin MD90-53A037, dated September 19, 2016.

(h) Repair of Cracks in the Bulkhead Web or Doubler

    If any crack is found in the bulkhead web or doubler, do the 
repair in accordance with Boeing Alert Service Bulletin MD90-53A037, 
dated September 19, 2016. Do all repairs before further flight.

(i) Repair of Non-Web or Non-Doubler Cracks in the Bulkhead

    If any non-web or non-doubler crack is found in the bulkhead, 
repair before further flight using a method approved in accordance 
with the procedures specified in paragraph (l) of this AD.

(j) Service Information Exception

    Where paragraph 1.E., ``Compliance,'' of Boeing Alert Service 
Bulletin MD90-53A037, dated September 19, 2016, specifies a 
compliance time ``after the original issue date of this service 
bulletin,'' this AD requires compliance within the specified 
compliance time after the effective date of this AD.

(k) Special Flight Permit

    Special flight permits may be issued in accordance with sections 
21.197 and 21.199 of the Federal Aviation Regulations (14 CFR 21.197 
and 21.199) to operate the airplane to a location where the airplane 
can be repaired, but if any crack is found as identified in Boeing 
Alert Service Bulletin MD90-53A037, dated September 19, 2016, 
concurrence by the Manager, Los Angeles Aircraft Certification 
Office (ACO), FAA, is required before issuance of the special flight 
permit.

(l) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Los Angeles ACO, FAA, has the authority to 
approve AMOCs for this AD, if requested using the procedures found 
in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request 
to your principal inspector or local Flight Standards District 
Office, as appropriate. If sending information directly to the 
manager of the ACO, send it to the attention of the person 
identified in paragraph (m) 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, Los Angeles ACO, to make those findings. To be approved, 
the repair method, modification deviation, or alteration deviation 
must meet the certification basis of the airplane, and the approval 
must specifically refer to this AD.
    (4) Except as required by paragraph (j) of this AD: For service 
information that contains steps that are labeled as Required for 
Compliance (RC), the provisions of paragraphs (l)(4)(i) and 
(l)(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. If a step or substep is labeled ``RC Exempt,'' then the 
RC requirement is removed from that step or substep. 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.

(m) Related Information

    For more information about this AD, contact George Garrido, 
Aerospace Engineer, Airframe Branch, ANM-120L, FAA, Los Angeles 
Aircraft Certification Office (ACO), 3960 Paramount Boulevard, 
Lakewood, CA 90712-4137; phone: 562-627-5232; fax: 562-627-5210; 
email: [email protected].

(n) 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 MD90-53A037, dated September 
19, 2016.
    (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-
5600; telephone 562-797-1717; Internet https://www.myboeingfleet.com.
    (4) You may view this 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.


[[Page 76851]]


    Issued in Renton, Washington, on October 26, 2016.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2016-26629 Filed 11-3-16; 8:45 am]
 BILLING CODE 4910-13-P



                                             76848             Federal Register / Vol. 81, No. 214 / Friday, November 4, 2016 / Rules and Regulations

                                             AD if done before November 4, 2016 (the                    (2) You must use this service information          are issuing this AD to detect and correct
                                             effective date of this AD), following Pilatus           as applicable to do the actions required by           cracking in the bulkhead, which could
                                             PC–6 SB No. 53–003, dated October 4, 2016.              this AD, unless this AD specifies otherwise.          result in reduced structural integrity of
                                             The dye-penetrant or eddy current inspection               (i) Pilatus Aircraft Ltd. PC–6 Service
                                                                                                                                                           the airplane.
                                             must still be done following Pilatus PC–6 SB            Bulletin No. 53–003, Revision 1, dated
                                             No. 53–003, Revision 1, dated October 13,               October 13, 2016.                                     DATES: This AD is effective November
                                             2016.                                                      (ii) Reserved.                                     21, 2016.
                                                                                                        (3) For Pilatus Aircraft Ltd. service                The Director of the Federal Register
                                             (h) Other FAA AD Provisions                             information identified in this AD, contact            approved the incorporation by reference
                                                The following provisions also apply to this          Pilatus Aircraft Ltd., Customer Liaison               of a certain publication listed in this AD
                                             AD:                                                     Manager, CH–6371 STANS, Switzerland;                  as of November 21, 2016.
                                                (1) Alternative Methods of Compliance                telephone: +41 41 619 3333; fax: +41 41 619
                                                                                                                                                             We must receive comments on this
                                             (AMOCs): The Manager, Standards Office,                 7311; Internet: http://www.pilatus-
                                                                                                     aircraft.com.                                         AD by December 19, 2016.
                                             FAA, has the authority to approve AMOCs
                                             for this AD, if requested using the procedures             (4) You may view this service information          ADDRESSES: You may send comments,
                                             found in 14 CFR 39.19. Send information to              at the FAA, FAA, Small Airplane Directorate,          using the procedures found in 14 CFR
                                             ATTN: Doug Rudolph, Aerospace Engineer,                 901 Locust, Kansas City, Missouri 64106. For          11.43 and 11.45, by any of the following
                                             FAA, Small Airplane Directorate, 901 Locust,            information on the availability of this               methods:
                                             Room 301, Kansas City, Missouri 64106;                  material at the FAA, call (816) 329–4148. It            • Federal eRulemaking Portal: Go to
                                             telephone: (816) 329–4059; fax: (816) 329–              is also available on the Internet at http://          http://www.regulations.gov. Follow the
                                             4090; email: doug.rudolph@faa.gov. Before               www.regulations.gov by searching for
                                                                                                     locating Docket No. FAA–2016–9356.
                                                                                                                                                           instructions for submitting comments.
                                             using any approved AMOC on any airplane
                                                                                                        (5) You may view this service information            • Fax: 202–493–2251.
                                             to which the AMOC applies, notify your
                                             appropriate principal inspector (PI) in the             that is incorporated by reference at the                • Mail: U.S. Department of
                                             FAA Flight Standards District Office (FSDO),            National Archives and Records                         Transportation, Docket Operations, M–
                                             or lacking a PI, your local FSDO.                       Administration (NARA). For information on             30, West Building Ground Floor, Room
                                                (2) Airworthy Product: For any requirement           the availability of this material at NARA, call       W12–140, 1200 New Jersey Avenue SE.,
                                             in this AD to obtain corrective actions from            202–741–6030, or go to: http://                       Washington, DC 20590.
                                             a manufacturer or other source, use these               www.archives.gov/federal-register/cfr/ibr-              • Hand Delivery: Deliver to Mail
                                             actions if they are FAA-approved. Corrective            locations.html.                                       address above between 9 a.m. and 5
                                             actions are considered FAA-approved if they                                                                   p.m., Monday through Friday, except
                                             are approved by the State of Design Authority             Issued in Kansas City, Missouri on October
                                                                                                     27, 2016.                                             Federal holidays.
                                             (or their delegated agent). You are required
                                                                                                                                                             For service information identified in
                                             to assure the product is airworthy before it            Pat Mullen,
                                             is returned to service.                                                                                       this final rule, contact Boeing
                                                                                                     Acting Manager, Small Airplane Directorate,
                                                (3) Reporting Requirements: For any                                                                        Commercial Airplanes, Attention:
                                                                                                     Aircraft Certification Service.
                                             reporting requirement in this AD, a federal                                                                   Contractual & Data Services (C&DS),
                                                                                                     [FR Doc. 2016–26431 Filed 11–3–16; 8:45 am]
                                             agency may not conduct or sponsor, and a                                                                      2600 Westminster Blvd., MC 110–SK57,
                                                                                                     BILLING CODE 4910–13–P
                                             person is not required to respond to, nor                                                                     Seal Beach, CA 90740–5600; telephone
                                             shall a person be subject to a penalty for                                                                    562–797–1717; Internet https://
                                             failure to comply with a collection of                                                                        www.myboeingfleet.com. You may view
                                             information subject to the requirements of              DEPARTMENT OF TRANSPORTATION
                                                                                                                                                           this referenced service information at
                                             the Paperwork Reduction Act unless that
                                                                                                     Federal Aviation Administration                       the FAA, Transport Airplane
                                             collection of information displays a current
                                             valid OMB Control Number. The OMB                                                                             Directorate, 1601 Lind Avenue SW.,
                                             Control Number for this information                     14 CFR Part 39                                        Renton, WA. For information on the
                                             collection is 2120–0056. Public reporting for                                                                 availability of this material at the FAA,
                                             this collection of information is estimated to          [Docket No. FAA–2016–9306; Directorate                call 425–227–1221. It is also available
                                             be approximately 5 minutes per response,                Identifier 2016–NM–169–AD; Amendment                  on the Internet at http://
                                             including the time for reviewing instructions,          39–18707; AD 2016–22–18]
                                                                                                                                                           www.regulations.gov by searching for
                                             completing and reviewing the collection of              RIN 2120–AA64                                         and locating Docket No. FAA–2016–
                                             information. All responses to this collection                                                                 9306.
                                             of information are mandatory. Comments                  Airworthiness Directives; The Boeing
                                             concerning the accuracy of this burden and              Company Airplanes                                     Examining the AD Docket
                                             suggestions for reducing the burden should
                                             be directed to the FAA at: 800 Independence             AGENCY:  Federal Aviation                               You may examine the AD docket on
                                             Ave. SW., Washington, DC 20591, Attn:                   Administration (FAA), DOT.                            the Internet at http://
                                             Information Collection Clearance Officer,                                                                     www.regulations.gov by searching for
                                                                                                     ACTION: Final rule; request for
                                             AES–200.                                                                                                      and locating Docket No. FAA–2016–
                                                                                                     comments.
                                                                                                                                                           9306; or in person at the Docket
                                             (i) Related Information
                                                                                                     SUMMARY:   We are adopting a new                      Management Facility between 9 a.m.
                                                Refer to MCAI European Aviation Safety                                                                     and 5 p.m., Monday through Friday,
                                             Agency (EASA) AD No. 2016–0202–E, dated                 airworthiness directive (AD) for all The
                                                                                                     Boeing Company Model MD–90–30                         except Federal holidays. The AD docket
                                             October 7, 2016, and Pilatus Aircraft Ltd. PC–
                                             6 Service Bulletin No. 53–003, dated October            airplanes. This AD requires a detailed                contains this AD, the regulatory
                                             4, 2016. You may examine the MCAI on the                inspection of the forward and aft                     evaluation, any comments received, and
                                             Internet at http://www.regulations.gov by               surfaces on the left and right sides at the           other information. The street address for
                                             searching for and locating Docket No. FAA–              cant station 1520 bulkhead for any crack              the Docket Office (phone: 800–647–
                                             2016–9356.                                              in the upper cap and (cap) doubler,                   5527) is in the ADDRESSES section.
rmajette on DSK2TPTVN1PROD with RULES




                                             (j) Material Incorporated by Reference                  webs and doublers, stiffeners, and the                Comments will be available in the AD
                                                                                                     lower tee cap between longerons 3                     docket shortly after receipt.
                                                (1) The Director of the Federal Register
                                             approved the incorporation by reference                 through 11, and repairs if necessary.                 FOR FURTHER INFORMATION CONTACT:
                                             (IBR) of the service information listed in this         This AD was prompted by a report of                   George Garrido, Aerospace Engineer,
                                             paragraph under 5 U.S.C. 552(a) and 1 CFR               cracking in various structures in the                 Airframe Branch, ANM–120L, FAA, Los
                                             part 51.                                                fuselage cant station 1520 bulkhead. We               Angeles Aircraft Certification Office


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                                                                 Federal Register / Vol. 81, No. 214 / Friday, November 4, 2016 / Rules and Regulations                                            76849

                                             (ACO), 3960 Paramount Boulevard,                          of business or by the means identified                   AD. The FAA has found that the risk to
                                             Lakewood, CA 90712–4137; phone:                           in the ADDRESSES section.                                the flying public justifies waiving notice
                                             562–627–5232; fax: 562–627–5210;                                                                                   and comment prior to adoption of this
                                                                                                       FAA’s Determination
                                             email: george.garrido@faa.gov.                                                                                     rule because undetected cracking of the
                                             SUPPLEMENTARY INFORMATION:
                                                                                                         We are issuing this AD because we                      bulkhead may result in the inability of
                                                                                                       evaluated all the relevant information                   the structure to sustain limit loads, and
                                             Discussion                                                and determined the unsafe condition                      consequent reduced structural integrity
                                                We have received a report indicating                   described previously is likely to exist or               of the airplane. Therefore, we find that
                                             an operator found cracking of various                     develop in other products of the same                    notice and opportunity for prior public
                                             structures in the fuselage cant station                   type design.                                             comment are impracticable and that
                                             1520 bulkhead on a Model MD–90–30                         AD Requirements                                          good cause exists for making this
                                             airplane. The cracks were in the upper                                                                             amendment effective in less than 30
                                                                                                         This AD requires accomplishing the
                                             left area of the bulkhead, between                                                                                 days.
                                                                                                       actions specified in the service
                                             longerons 5 and 10, in the web, lower                                                                              Comments Invited
                                                                                                       information described previously,
                                             tee cap, and the upper cap and (cap)
                                                                                                       except as discussed under ‘‘Differences                    This AD is a final rule that involves
                                             doubler. The affected airplane had
                                                                                                       Between this Proposed AD and the                         requirements affecting flight safety and
                                             accumulated 52,993 total flight hours
                                                                                                       Service Information.’’ For information                   was not preceded by notice and an
                                             and 28,718 total flight cycles. Boeing
                                                                                                       on the procedures and compliance                         opportunity for public comment.
                                             analysis determined that the operational
                                                                                                       times, see this service information at                   However, we invite you to send any
                                             and limit loads cannot duplicate this
                                                                                                       http://www.regulations.gov by searching                  written data, views, or arguments about
                                             condition, and the root cause is
                                                                                                       for and locating Docket No. FAA–2016–                    this AD. Send your comments to an
                                             suspected to be the result of a high load
                                                                                                       9306.                                                    address listed under the ADDRESSES
                                             event based on service experience.
                                             Cracking of the bulkhead, if not detected                 Differences Between This Proposed AD                     section. Include the docket number
                                             and corrected, could result in the                        and the Service Information                              FAA–2016–9306 and Directorate
                                             inability of the structure to sustain limit                  Boeing Alert Service Bulletin MD90–                   Identifier 2016–NM–169–AD at the
                                             loads, and consequent reduced                             53A037, dated September 19, 2016,                        beginning of your comments. We
                                             structural integrity of the airplane. We                  specifies to contact the manufacturer for                specifically invite comments on the
                                             are issuing this AD to correct the unsafe                 certain instructions, but this AD would                  overall regulatory, economic,
                                             condition on these products.                              require accomplishment of repair                         environmental, and energy aspects of
                                                                                                       methods, modification deviations, and                    this AD. We will consider all comments
                                             Related Service Information Under 1                                                                                received by the closing date and may
                                             CFR Part 51                                               alteration deviations in one of the
                                                                                                       following ways:                                          amend this AD because of those
                                                We reviewed Boeing Alert Service                          • In accordance with a method that                    comments.
                                             Bulletin MD90–53A037, dated                               we approve; or                                             We will post all comments we
                                             September 19, 2016. The service                              • Using data that meet the                            receive, without change, to http://
                                             information describes procedures for a                    certification basis of the airplane, and                 www.regulations.gov, including any
                                             detailed inspection of the forward and                    that have been approved by the Boeing                    personal information you provide. We
                                             aft surfaces on the left and right sides at               Commercial Airplanes Organization                        will also post a report summarizing each
                                             cant station 1520 bulkhead for any crack                  Designation Authorization (ODA) whom                     substantive verbal contact we receive
                                             in the upper cap and (cap) doubler,                       we have authorized to make those                         about this AD.
                                             webs and doublers, stiffeners, and the                    findings.
                                             lower tee cap between longerons 3                                                                                  Costs of Compliance
                                             through 11, and repairs. This service                     FAA’s Justification and Determination                      We estimate that this AD affects 71
                                             information is reasonably available                       of the Effective Date                                    airplanes of U.S. registry. We estimate
                                             because the interested parties have                         An unsafe condition exists that                        the following costs to comply with this
                                             access to it through their normal course                  requires the immediate adoption of this                  AD:

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

                                             Detailed inspection ..........   2 work-hours × $85 per hour = $170 ............................................      $0             $170          $12,070



                                               We have received no definitive data                     detail the scope of the Agency’s                         is within the scope of that authority
                                             that would enable us to provide cost                      authority.                                               because it addresses an unsafe condition
                                             estimates for the on-condition actions                       We are issuing this rulemaking under                  that is likely to exist or develop on
                                             specified in this AD.                                     the authority described in Subtitle VII,                 products identified in this rulemaking
                                                                                                                                                                action.
                                             Authority for This Rulemaking                             Part A, Subpart III, Section 44701:
                                                                                                       ‘‘General requirements.’’ Under that                     Regulatory Findings
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                                               Title 49 of the United States Code                      section, Congress charges the FAA with                     This AD will not have federalism
                                             specifies the FAA’s authority to issue                    promoting safe flight of civil aircraft in               implications under Executive Order
                                             rules on aviation safety. Subtitle I,                     air commerce by prescribing regulations                  13132. This AD will not have a
                                             section 106, describes the authority of                   for practices, methods, and procedures                   substantial direct effect on the States, on
                                             the FAA Administrator. ‘‘Subtitle VII:                    the Administrator finds necessary for                    the relationship between the national
                                             Aviation Programs’’ describes in more                     safety in air commerce. This regulation                  government and the States, or on the


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                                             76850             Federal Register / Vol. 81, No. 214 / Friday, November 4, 2016 / Rules and Regulations

                                             distribution of power and                               (g) Detailed Inspection of the Cant Station           modification, or alteration required by this
                                             responsibilities among the various                      1520 Bulkhead                                         AD if it is approved by the Boeing
                                             levels of government.                                      At the applicable time specified in                Commercial Airplanes Organization
                                               For the reasons discussed above, I                    paragraph 1.E., ‘‘Compliance,’’ of Boeing             Designation Authorization (ODA) that has
                                             certify that this AD:                                   Alert Service Bulletin MD90–53A037, dated             been authorized by the Manager, Los Angeles
                                                                                                     September 19, 2016, except as required by             ACO, to make those findings. To be
                                               (1) Is not a ‘‘significant regulatory
                                                                                                     paragraph (j) of this AD: On the left and right       approved, the repair method, modification
                                             action’’ under Executive Order 12866,                                                                         deviation, or alteration deviation must meet
                                                                                                     sides at the cant station 1520 bulkhead, do
                                               (2) Is not a ‘‘significant rule’’ under               a detailed inspection of the forward and aft          the certification basis of the airplane, and the
                                             DOT Regulatory Policies and Procedures                  surfaces, for any crack in the upper cap and          approval must specifically refer to this AD.
                                             (44 FR 11034, February 26, 1979),                       (cap) doubler, webs and doublers, stiffeners,            (4) Except as required by paragraph (j) of
                                               (3) Will not affect intrastate aviation               and the lower tee cap between longerons 3             this AD: For service information that
                                             in Alaska, and                                          through 11, in accordance with the                    contains steps that are labeled as Required
                                               (4) Will not have a significant                       Accomplishment Instructions of Boeing Alert           for Compliance (RC), the provisions of
                                             economic impact, positive or negative,                  Service Bulletin MD90–53A037, dated                   paragraphs (l)(4)(i) and (l)(4)(ii) of this AD
                                             on a substantial number of small entities               September 19, 2016.                                   apply.
                                             under the criteria of the Regulatory                                                                             (i) The steps labeled as RC, including
                                                                                                     (h) Repair of Cracks in the Bulkhead Web or
                                             Flexibility Act.                                                                                              substeps under an RC step and any figures
                                                                                                     Doubler
                                                                                                                                                           identified in an RC step, must be done to
                                             List of Subjects in 14 CFR Part 39                        If any crack is found in the bulkhead web           comply with the AD. If a step or substep is
                                                                                                     or doubler, do the repair in accordance with          labeled ‘‘RC Exempt,’’ then the RC
                                               Air transportation, Aircraft, Aviation                Boeing Alert Service Bulletin MD90–53A037,            requirement is removed from that step or
                                             safety, Incorporation by reference,                     dated September 19, 2016. Do all repairs              substep. An AMOC is required for any
                                             Safety.                                                 before further flight.                                deviations to RC steps, including substeps
                                                                                                     (i) Repair of Non-Web or Non-Doubler                  and identified figures.
                                             Adoption of the Amendment
                                                                                                     Cracks in the Bulkhead                                   (ii) Steps not labeled as RC may be
                                               Accordingly, under the authority                                                                            deviated from using accepted methods in
                                                                                                        If any non-web or non-doubler crack is
                                             delegated to me by the Administrator,                                                                         accordance with the operator’s maintenance
                                                                                                     found in the bulkhead, repair before further          or inspection program without obtaining
                                             the FAA amends 14 CFR part 39 as                        flight using a method approved in
                                             follows:                                                                                                      approval of an AMOC, provided the RC steps,
                                                                                                     accordance with the procedures specified in           including substeps and identified figures, can
                                                                                                     paragraph (l) of this AD.                             still be done as specified, and the airplane
                                             PART 39—AIRWORTHINESS
                                             DIRECTIVES                                              (j) Service Information Exception                     can be put back in an airworthy condition.
                                                                                                        Where paragraph 1.E., ‘‘Compliance,’’ of           (m) Related Information
                                             ■ 1. The authority citation for part 39                 Boeing Alert Service Bulletin MD90–53A037,
                                                                                                                                                             For more information about this AD,
                                             continues to read as follows:                           dated September 19, 2016, specifies a
                                                                                                                                                           contact George Garrido, Aerospace Engineer,
                                                                                                     compliance time ‘‘after the original issue date
                                                 Authority: 49 U.S.C. 106(g), 40113, 44701.                                                                Airframe Branch, ANM–120L, FAA, Los
                                                                                                     of this service bulletin,’’ this AD requires
                                                                                                                                                           Angeles Aircraft Certification Office (ACO),
                                             § 39.13   [Amended]                                     compliance within the specified compliance
                                                                                                                                                           3960 Paramount Boulevard, Lakewood, CA
                                                                                                     time after the effective date of this AD.
                                             ■ 2. The FAA amends § 39.13 by adding                                                                         90712–4137; phone: 562–627–5232; fax: 562–
                                             the following new airworthiness                         (k) Special Flight Permit                             627–5210; email: george.garrido@faa.gov.
                                             directive (AD):                                            Special flight permits may be issued in            (n) Material Incorporated by Reference
                                                                                                     accordance with sections 21.197 and 21.199
                                             2016–22–18 The Boeing Company:                                                                                   (1) The Director of the Federal Register
                                                                                                     of the Federal Aviation Regulations (14 CFR
                                                 Amendment 39–18707; Docket No.                                                                            approved the incorporation by reference
                                                                                                     21.197 and 21.199) to operate the airplane to
                                                 FAA–2016–9306; Directorate Identifier                                                                     (IBR) of the service information listed in this
                                                                                                     a location where the airplane can be repaired,
                                                 2016–NM–169–AD.                                                                                           paragraph under 5 U.S.C. 552(a) and 1 CFR
                                                                                                     but if any crack is found as identified in
                                                                                                     Boeing Alert Service Bulletin MD90–53A037,            part 51.
                                             (a) Effective Date
                                                                                                     dated September 19, 2016, concurrence by                 (2) You must use this service information
                                               This AD is effective November 21, 2016.                                                                     as applicable to do the actions required by
                                                                                                     the Manager, Los Angeles Aircraft
                                             (b) Affected ADs                                        Certification Office (ACO), FAA, is required          this AD, unless the AD specifies otherwise.
                                                                                                     before issuance of the special flight permit.            (i) Boeing Alert Service Bulletin MD90–
                                               None.                                                                                                       53A037, dated September 19, 2016.
                                             (c) Applicability                                       (l) Alternative Methods of Compliance                    (ii) Reserved.
                                                                                                     (AMOCs)                                                  (3) For service information identified in
                                                This AD applies to all The Boeing
                                                                                                        (1) The Manager, Los Angeles ACO, FAA,             this AD, contact Boeing Commercial
                                             Company Model MD–90–30 airplanes,
                                                                                                     has the authority to approve AMOCs for this           Airplanes, Attention: Contractual & Data
                                             certificated in any category.
                                                                                                     AD, if requested using the procedures found           Services (C&DS), 2600 Westminster Blvd.,
                                             (d) Subject                                             in 14 CFR 39.19. In accordance with 14 CFR            MC 110–SK57, Seal Beach, CA 90740–5600;
                                               Air Transport Association (ATA) of                    39.19, send your request to your principal            telephone 562–797–1717; Internet https://
                                             America Code 53, Fuselage.                              inspector or local Flight Standards District          www.myboeingfleet.com.
                                                                                                     Office, as appropriate. If sending information           (4) You may view this service information
                                             (e) Unsafe Condition                                    directly to the manager of the ACO, send it           at the FAA, Transport Airplane Directorate,
                                                This AD was prompted by a report of                  to the attention of the person identified in          1601 Lind Avenue SW., Renton, WA. For
                                             cracking in various structures in the fuselage          paragraph (m) of this AD. Information may be          information on the availability of this
                                             cant station 1520 bulkhead. We are issuing              emailed to: 9-ANM-LAACO-AMOC-                         material at the FAA, call 425–227–1221.
                                             this AD to detect and correct cracking in the           Requests@faa.gov.                                        (5) You may view this service information
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                                             bulkhead, which could result in reduced                    (2) Before using any approved AMOC,                that is incorporated by reference at the
                                             structural integrity of the airplane.                   notify your appropriate principal inspector,          National Archives and Records
                                                                                                     or lacking a principal inspector, the manager         Administration (NARA). For information on
                                             (f) Compliance                                          of the local flight standards district office/        the availability of this material at NARA, call
                                                Comply with this AD within the                       certificate holding district office.                  202–741–6030, or go to: http://
                                             compliance times specified, unless already                 (3) An AMOC that provides an acceptable            www.archives.gov/federal-register/cfr/ibr-
                                             done.                                                   level of safety may be used for any repair,           locations.html.



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                                                               Federal Register / Vol. 81, No. 214 / Friday, November 4, 2016 / Rules and Regulations                                       76851

                                               Issued in Renton, Washington, on October              110–SK57, Seal Beach, CA 90740;                       Comments
                                             26, 2016.                                               telephone 562–797–1717; Internet                        We gave the public the opportunity to
                                             Dionne Palermo,                                         https://www.myboeingfleet.com. You                    participate in developing this AD. The
                                             Acting Manager, Transport Airplane                      may view this referenced service                      following presents the comments
                                             Directorate, Aircraft Certification Service.            information at the FAA, Transport                     received on the NPRM and the FAA’s
                                             [FR Doc. 2016–26629 Filed 11–3–16; 8:45 am]             Airplane Directorate, 1601 Lind Avenue                response to each comment.
                                             BILLING CODE 4910–13–P                                  SW., Renton, WA. For information on
                                                                                                     the availability of this material at the              Support of the NPRM
                                                                                                     FAA, call 425–227–1221. It is also                      FedEx provided comments that
                                             DEPARTMENT OF TRANSPORTATION                            available on the Internet at http://                  supported the intent of the NPRM.
                                                                                                     www.regulations.gov by searching for
                                             Federal Aviation Administration                         and locating Docket No. FAA–2016–                     Request To Change Compliance Time
                                                                                                     6669.                                                    Boeing and United Airlines (UA)
                                             14 CFR Part 39
                                                                                                     Examining the AD Docket                               asked that we change the compliance
                                             [Docket No. FAA–2016–6669; Directorate                                                                        time for the repetitive HFEC inspections
                                             Identifier 2015–NM–191–AD; Amendment                      You may examine the AD docket on                    specified in paragraph (j) of the
                                             39–18698; AD 2016–22–09]                                the Internet at http://                               proposed AD. Boeing learned that some
                                                                                                     www.regulations.gov by searching for                  operators began doing inspections long
                                             RIN 2120–AA64
                                                                                                     and locating Docket No. FAA–2016–                     before the 37,500-flight-cycle threshold
                                             Airworthiness Directives; The Boeing                    6669; or in person at the Docket                      was attained. Boeing stated that the
                                             Company Airplanes                                       Management Facility between 9 a.m.                    compliance table in Boeing Special
                                                                                                     and 5 p.m., Monday through Friday,                    Attention Service Bulletin 757–53–
                                             AGENCY:  Federal Aviation                               except Federal holidays. The AD docket                0090, Revision 1, dated November 19,
                                             Administration (FAA), DOT.                              contains this AD, the regulatory                      2015, provided grace periods for doing
                                             ACTION: Final rule.                                     evaluation, any comments received, and                the HFEC inspections after doing
                                                                                                     other information. The address for the                previous inspections, but did not
                                             SUMMARY:   We are superseding                           Docket Office (phone: 800–647–5527) is                provide for previous inspections being
                                             Airworthiness Directive (AD) 2006–20–                   Docket Management Facility, U.S.                      done within the grace period or before
                                             11 for certain The Boeing Company                       Department of Transportation, Docket                  the required threshold of 37,500 flight
                                             Model 757–200, –200CB, and –200PF                       Operations, M–30, West Building                       cycles, whichever occurs later. Boeing
                                             series airplanes. AD 2006–20–11                         Ground Floor, Room W12–140, 1200                      added that, as written, the service
                                             required initial and repetitive detailed                New Jersey Avenue SE., Washington,                    information specifies repetitive
                                             or high frequency eddy current (HFEC)                   DC 20590.                                             inspections within 3,000 flight cycles
                                             inspections for cracks around the rivets                FOR FURTHER INFORMATION CONTACT: Eric                 after any previous detailed inspection
                                             at the upper fastener row of the skin lap               Schrieber, Aerospace Engineer,                        and within 12,000 flight cycles after any
                                             splice of the fuselage, and repair of any               Airframe Branch, ANM–120L, FAA, Los                   previous HFEC inspection—even if the
                                             crack found. This new AD no longer                      Angeles Aircraft Certification Office                 interval occurred before the 37,500-
                                             allows the detailed inspections and                     (ACO), 3960 Paramount Boulevard,                      flight-cycle threshold.
                                             instead requires repetitive external                    Lakewood, CA 90712–4137; phone:                          UA stated that if an operator decided
                                             HFEC inspections for cracking of the                    562–627–5348; fax: 562–627–5210;                      to proactively accomplish either a
                                             skin lap splices of the fuselage, and                   email: eric.schrieber@faa.gov.                        detailed or HFEC inspection before the
                                             repair if necessary. This AD was                                                                              specified compliance time in, and in
                                                                                                     SUPPLEMENTARY INFORMATION:
                                             prompted by an evaluation done by the                                                                         accordance with either Boeing Special
                                             design approval holder (DAH)                            Discussion                                            Attention Service Bulletin 757–53–
                                             indicating that the fuselage skin lap                      We issued a notice of proposed                     0090, dated June 2, 2005 or Boeing
                                             splice is subject to widespread fatigue                 rulemaking (NPRM) to amend 14 CFR                     Special Attention Service Bulletin 757–
                                             damage (WFD). We are issuing this AD                    part 39 to supersede AD 2006–20–11,                   53–0090, Revision 1, dated November
                                             to detect and correct fatigue cracking at               Amendment 39–14781 (71 FR 58485,                      19, 2015, then the inspection would
                                             certain skin lap splice locations of the                October 4, 2006) (‘‘AD 2006–20–11’’).                 have to be repeated within 3,000 or
                                             fuselage, which could result in reduced                 AD 2006–20–11 applied to certain The                  12,000 flight cycles, depending on
                                             structural integrity and rapid                          Boeing Company Model 757–200,                         which inspection was previously done.
                                             decompression of the airplane.                          –200CB, and –200PF series airplanes.                  UA stated that this compliance time
                                             DATES: This AD is effective December 9,                 The NPRM published in the Federal                     could be much sooner than the intended
                                             2016.                                                   Register on May 12, 2016 (81 FR 29508)                37,500 flight cycles. UA noted that it
                                                The Director of the Federal Register                 (‘‘the NPRM’’). The NPRM was                          discussed this problem with Boeing and
                                             approved the incorporation by reference                 prompted by an evaluation done by the                 hoped it could be clarified in the NPRM.
                                             of a certain publication listed in this AD              DAH indicating that the fuselage skin                    We agree with the commenters’
                                             as of December 9, 2016.                                 lap splice is subject to WFD. The NPRM                requests to change the compliance time
                                                The Director of the Federal Register                 proposed to require repetitive external               for the repetitive HFEC inspections
                                             approved the incorporation by reference                 HFEC inspections for cracking of the                  specified in paragraph (j) of this AD.
                                             of a certain other publication listed in                skin lap splices of the fuselage, and                 According to the proposed AD,
                                             this AD as of November 8, 2006 (71 FR                   repair if necessary. We are issuing this              operators that accomplished the
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                                             58485, October 4, 2006).                                AD to detect and correct fatigue                      inspections early would be required to
                                             ADDRESSES: For service information                      cracking at certain skin lap splice                   do the inspections before reaching the
                                             identified in this final rule, contact                  locations of the fuselage, which could                inspection threshold specified in
                                             Boeing Commercial Airplanes,                            result in reduced structural integrity                paragraph (j) of the proposed AD. It was
                                             Attention: Contractual & Data Services                  and rapid decompression of the                        not the intent of Boeing or the FAA to
                                             (C&DS), 2600 Westminster Blvd., MC                      airplane.                                             require that the airplane be inspected


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Document Created: 2018-02-14 08:26:24
Document Modified: 2018-02-14 08:26:24
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; request for comments.
DatesThis AD is effective November 21, 2016.
ContactGeorge Garrido, Aerospace Engineer, Airframe Branch, ANM-120L, FAA, Los Angeles Aircraft Certification Office (ACO), 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562- 627-5232; fax: 562-627-5210; email: [email protected]
FR Citation81 FR 76848 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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