82_FR_12343 82 FR 12303 - Airworthiness Directives; the Boeing Company Airplanes

82 FR 12303 - Airworthiness Directives; the Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 40 (March 2, 2017)

Page Range12303-12305
FR Document2017-03996

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. This proposed AD was prompted by reports of frame web cracking at certain locations. This proposed AD would require repetitive inspections in certain locations of the frame web, and corrective action if necessary. We are proposing this AD to address the unsafe condition on these products.

Federal Register, Volume 82 Issue 40 (Thursday, March 2, 2017)
[Federal Register Volume 82, Number 40 (Thursday, March 2, 2017)]
[Proposed Rules]
[Pages 12303-12305]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-03996]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0126; Directorate Identifier 2016-NM-211-AD]
RIN 2120-AA64


Airworthiness Directives; the Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain The Boeing Company Model 737-100, -200, -200C, -300, -400, and 
-500 series airplanes. This proposed AD was prompted by reports of 
frame web cracking at certain locations. This proposed AD would require 
repetitive inspections in certain locations of the frame web, and 
corrective action if necessary. We are proposing this AD to address the 
unsafe condition on these products.

DATES: We must receive comments on this proposed AD by April 17, 2017.

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 NPRM, 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-2017-0126.

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-2017-
0126; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this proposed AD, the regulatory evaluation, any comments 
received, and other information. The street address for the Docket 
Office (phone: 800-647-5527) is in the ADDRESSES section. Comments will 
be available in the AD docket shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Gaetano Settineri, Aerospace Engineer, 
Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office 
(ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917-
6577; fax: 425-917-6590; email: [email protected].

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposal. Send your comments to an address listed 
under the ADDRESSES section. Include ``Docket No. FAA-2017-0126; 
Directorate Identifier 2016-NM-211-AD'' at the beginning of your 
comments. We specifically invite comments on the overall regulatory, 
economic, environmental, and energy aspects of this proposed AD. We 
will consider all comments received by the closing date and may amend 
this proposed AD because of those comments.
    We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    We have received reports of frame web cracking at the station (STA) 
344 system penetration holes between stringer S-22L and stringer S-24L. 
There were 11 reports of cracking on airplanes having accumulated 
between 25,713 and 68,093 total flight cycles and between 55,058 and 
76,358 total flight hours. Crack lengths ranged from 0.78 inch to 1.57 
inches. Frame cracking is the result of fatigue caused by cyclic 
pressurization of the fuselage. Undetected cracks can grow until the 
frames sever. Ultimately, multiple adjacent frames could be severed, or 
a severed frame could exist near cracks in

[[Page 12304]]

the chem-milled fuselage skin. This condition, if not corrected, could 
result in uncontrolled decompression of the airplane.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin 737-53A1354, dated 
December 2, 2016. The service information describes procedures for 
repetitive high frequency eddy current (HFEC), detailed, and general 
visual inspections in certain locations of the frame web. 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 proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type design.

Proposed AD Requirements

    This proposed AD would require 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-2017-0126.
    The phrase ``corrective actions'' is used in this proposed AD. 
Corrective actions correct or address any condition found. Corrective 
actions in an AD could include, for example, repairs.

Differences Between This Proposed AD and the Service Information

    Boeing Alert Service Bulletin 737-53A1354, dated December 2, 2016, 
specifies to contact the manufacturer for certain instructions, but 
this proposed AD would require using 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.

Costs of Compliance

    We estimate that this proposed AD affects 82 airplanes of U.S. 
registry. We estimate the following costs to comply with this proposed 
AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                 Cost on U.S.
              Action                    Labor cost        Parts cost      Cost per product        operators
----------------------------------------------------------------------------------------------------------------
HFEC, detailed, and general        114 work-hours x                 $0  $9,690 per           $794,580 per
 visual inspections.                $85 per hour =                       inspection cycle.    inspection cycle.
                                    $9,690 per
                                    inspection cycle.
----------------------------------------------------------------------------------------------------------------

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

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

List of Subjects in 14 CFR Part 39

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

The Proposed Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13   [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive (AD):

The Boeing Company: Docket No. FAA-2017-0126; Directorate Identifier 
2016-NM-211-AD.

(a) Comments Due Date

    We must receive comments by April 17, 2017.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to The Boeing Company Model 737-100, -200, -
200C, -300, -400, and -500 series airplanes, certificated in any 
category, as identified in Boeing Alert Service Bulletin 737-
53A1354, dated December 2, 2016.

(d) Subject

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

(e) Unsafe Condition

    This AD was prompted by reports of frame web cracking at station 
(STA) 344 system

[[Page 12305]]

penetration holes between stringer S-22L and stringer S-24L. We are 
issuing this AD to detect and correct such cracking, which could 
grow in size until frames sever. Multiple adjacent severed frames, 
or a severed frame near cracks in the chem-milled fuselage skin, 
could result in an uncontrolled decompression of the airplane.

(f) Compliance

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

(g) Group 1 Airplanes: Inspections and Corrective Actions

    For airplanes identified as Group 1 in Boeing Alert Service 
Bulletin 737-53A1354, dated December 2, 2016: Within 120 days after 
the effective date of this AD, inspect the left- and right-side 
fuselage frames, as specified in Parts 2 and 3 of the Accomplishment 
Instructions of Boeing Alert Service Bulletin 737-53A1354, dated 
December 2, 2016, and do all applicable corrective actions, using a 
method approved in accordance with the procedures specified in 
paragraph (j) of this AD. Do all applicable corrective actions 
before further flight.

(h) Group 2 Airplanes: Repetitive Inspections and Corrective Actions

    For airplanes identified as Group 2 in Boeing Alert Service 
Bulletin 737-53A1354, dated December 2, 2016: At the applicable 
times specified in paragraph 1.E., ``Compliance,'' of Boeing Alert 
Service Bulletin 737-53A1354, dated December 2, 2016, except as 
required by paragraph (i)(1) of this AD: Do the inspections 
specified in paragraphs (h)(1), (h)(2), and (h)(3) of this AD, and 
do all applicable corrective actions, in accordance with the 
Accomplishment Instructions of Boeing Alert Service Bulletin 757-
53A1354, dated December 2, 2016, except as required by paragraph 
(i)(2) of this AD. Repeat the inspections thereafter at the 
applicable times specified in paragraph 1.E., ``Compliance,'' of 
Boeing Alert Service Bulletin 757-53A1354, dated December 2, 2016. 
Do all applicable corrective actions before further flight.
    (1) Do high frequency eddy current (HFEC), detailed, and general 
visual inspections for cracking of the left side section 41 lower 
lobe frames, between STA 268.25 and STA 360.
    (2) Do detailed and general visual inspections for cracking of 
the right side section 41 lower lobe frames, between STA 268.25 and 
STA 360.
    (3) Do an HFEC inspection for cracking of the right side STA 
312, STA 328, and STA 344, section 41 lower lobe frames.

(i) Service Information Exceptions

    (1) Where paragraph 1.E., ``Compliance,'' of Boeing Alert 
Service Bulletin 737-53A1354, dated December 2, 2016, specifies a 
compliance time ``after the original date of this service 
bulletin,'' this AD requires compliance within the specified 
compliance time after the effective date of this AD.
    (2) Where Boeing Alert Service Bulletin 737-53A1354, dated 
December 2, 2016, specifies to contact Boeing for repair 
instructions, and specifies that action as Required for Compliance 
(RC), this AD requires repair before further flight using a method 
approved in accordance with the procedures specified in paragraph 
(j) of this AD.

(j) 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 (k)(1) of this AD. 
Information may be emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair, 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. 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 (i)(2) of this AD: For 
service information that contains steps that are labeled as Required 
for Compliance (RC), the provisions of paragraphs (j)(4)(i) and 
(j)(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.

(k) Related Information

    (1) For more information about this AD, contact Gaetano 
Settineri, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, 
Seattle ACO, 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 
425-917-6577; fax: 425-917-6590; email: [email protected].
    (2) 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. 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.

    Issued in Renton, Washington, on February 21, 2017.
Dionne Palermo,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2017-03996 Filed 3-1-17; 8:45 am]
 BILLING CODE 4910-13-P



                                                                          Federal Register / Vol. 82, No. 40 / Thursday, March 2, 2017 / Proposed Rules                                         12303

                                                 26, 2014; or Revision D, dated February 26,             DEPARTMENT OF TRANSPORTATION                          Examining the AD Docket
                                                 2016.
                                                                                                                                                                  You may examine the AD docket on
                                                                                                         Federal Aviation Administration                       the Internet at http://
                                                 (h) Other FAA AD Provisions
                                                    The following provisions also apply to this                                                                www.regulations.gov by searching for
                                                                                                         14 CFR Part 39                                        and locating Docket No. FAA–2017–
                                                 AD:
                                                    (1) Alternative Methods of Compliance                [Docket No. FAA–2017–0126; Directorate                0126; or in person at the Docket
                                                 (AMOCs): The Manager, New York Aircraft                 Identifier 2016–NM–211–AD]                            Management Facility between 9 a.m.
                                                 Certification Office (ACO), ANE–170 FAA,                                                                      and 5 p.m., Monday through Friday,
                                                 has the authority to approve AMOCs for this             RIN 2120–AA64                                         except Federal holidays. The AD docket
                                                 AD, if requested using the procedures found                                                                   contains this proposed AD, the
                                                 in 14 CFR 39.19. In accordance with 14 CFR
                                                                                                         Airworthiness Directives; the Boeing                  regulatory evaluation, any comments
                                                 39.19, send your request to your principal
                                                                                                         Company Airplanes                                     received, and other information. The
                                                 inspector or local Flight Standards District            AGENCY: Federal Aviation                              street address for the Docket Office
                                                 Office, as appropriate. If sending information          Administration (FAA), DOT.                            (phone: 800–647–5527) is in the
                                                 directly to the ACO, send it to ATTN:                                                                         ADDRESSES section. Comments will be
                                                                                                         ACTION: Notice of proposed rulemaking
                                                 Program Manager, Continuing Operational                                                                       available in the AD docket shortly after
                                                                                                         (NPRM).
                                                 Safety, FAA, New York ACO, 1600 Stewart                                                                       receipt.
                                                 Avenue, Suite 410, Westbury, NY 11590;                  SUMMARY:   We propose to adopt a new                  FOR FURTHER INFORMATION CONTACT:
                                                 telephone: 516–228–7300; fax: 516–794–                  airworthiness directive (AD) for certain              Gaetano Settineri, Aerospace Engineer,
                                                 5531. Before using any approved AMOC,                   The Boeing Company Model 737–100,                     Airframe Branch, ANM–120S, FAA,
                                                 notify your appropriate principal inspector,            –200, –200C, –300, –400, and –500                     Seattle Aircraft Certification Office
                                                 or lacking a principal inspector, the manager           series airplanes. This proposed AD was                (ACO), 1601 Lind Avenue SW., Renton,
                                                 of the local flight standards district office/          prompted by reports of frame web                      WA 98057–3356; phone: 425–917–6577;
                                                 certificate holding district office.                    cracking at certain locations. This                   fax: 425–917–6590; email:
                                                    (2) Contacting the Manufacturer: For any             proposed AD would require repetitive                  gaetano.settineri@faa.gov.
                                                 requirement in this AD to obtain corrective             inspections in certain locations of the               SUPPLEMENTARY INFORMATION:
                                                 actions from a manufacturer, the action must
                                                                                                         frame web, and corrective action if
                                                 be accomplished using a method approved                                                                       Comments Invited
                                                                                                         necessary. We are proposing this AD to
                                                 by the Manager, New York ACO, ANE–170,                                                                          We invite you to send any written
                                                                                                         address the unsafe condition on these
                                                 FAA; or Transport Canada Civil Aviation                                                                       relevant data, views, or arguments about
                                                                                                         products.
                                                 (TCCA); or Bombardier, Inc.’s TCCA Design                                                                     this proposal. Send your comments to
                                                 Approval Organization (DAO). If approved by             DATES:  We must receive comments on                   an address listed under the ADDRESSES
                                                 the DAO, the approval must include the                  this proposed AD by April 17, 2017.                   section. Include ‘‘Docket No. FAA–
                                                 DAO-authorized signature.                               ADDRESSES: You may send comments,                     2017–0126; Directorate Identifier 2016–
                                                 (i) Related Information                                 using the procedures found in 14 CFR                  NM–211–AD’’ at the beginning of your
                                                                                                         11.43 and 11.45, by any of the following              comments. We specifically invite
                                                    (1) Refer to Mandatory Continuing                    methods:
                                                 Airworthiness Information (MCAI) Canadian                                                                     comments on the overall regulatory,
                                                                                                           • Federal eRulemaking Portal: Go to                 economic, environmental, and energy
                                                 AD CF–2016–27, dated September 14, 2016,
                                                                                                         http://www.regulations.gov. Follow the                aspects of this proposed AD. We will
                                                 for related information. This MCAI may be
                                                                                                         instructions for submitting comments.                 consider all comments received by the
                                                 found in the AD docket on the Internet at
                                                                                                           • Fax: 202–493–2251.                                closing date and may amend this
                                                 http://www.regulations.gov by searching for
                                                                                                           • Mail: U.S. Department of                          proposed AD because of those
                                                 and locating Docket No. FAA–2017–0125.
                                                                                                         Transportation, Docket Operations, M–                 comments.
                                                    (2) For service information identified in
                                                 this AD, contact Bombardier, Inc., Q-Series
                                                                                                         30, West Building Ground Floor, Room                    We will post all comments we
                                                 Technical Help Desk, 123 Garratt Boulevard,
                                                                                                         W12–140, 1200 New Jersey Avenue SE.,                  receive, without change, to http://
                                                 Toronto, Ontario M3K 1Y5, Canada;
                                                                                                         Washington, DC 20590.                                 www.regulations.gov, including any
                                                 telephone: 416–375–4000; fax: 416–375–                    • Hand Delivery: Deliver to Mail                    personal information you provide. We
                                                 4539; email: thd.qseries@                               address above between 9 a.m. and 5                    will also post a report summarizing each
                                                 aero.bombardier.com; Internet: http://                  p.m., Monday through Friday, except                   substantive verbal contact we receive
                                                 www.bombardier.com. You may view this                   Federal holidays.                                     about this proposed AD.
                                                 service information at the FAA, Transport                 For service information identified in
                                                                                                         this NPRM, contact Boeing Commercial                  Discussion
                                                 Airplane Directorate, 1601 Lind Avenue SW.,
                                                 Renton, WA. For information on the                      Airplanes, Attention: Contractual & Data                 We have received reports of frame
                                                 availability of this material at the FAA, call          Services (C&DS), 2600 Westminster                     web cracking at the station (STA) 344
                                                 425–227–1221.                                           Blvd., MC 110–SK57, Seal Beach, CA                    system penetration holes between
                                                                                                         90740–5600; telephone 562–797–1717;                   stringer S–22L and stringer S–24L.
                                                   Issued in Renton, Washington, on February             Internet https://                                     There were 11 reports of cracking on
                                                 22, 2017.
                                                                                                         www.myboeingfleet.com. You may view                   airplanes having accumulated between
                                                 Dionne Palermo,                                         this referenced service information at                25,713 and 68,093 total flight cycles and
                                                                                                         the FAA, Transport Airplane                           between 55,058 and 76,358 total flight
pmangrum on DSK3GDR082PROD with PROPOSALS




                                                 Acting Manager, Transport Airplane
                                                 Directorate, Aircraft Certification Service.            Directorate, 1601 Lind Avenue SW.,                    hours. Crack lengths ranged from 0.78
                                                 [FR Doc. 2017–03995 Filed 3–1–17; 8:45 am]              Renton, WA. For information on the                    inch to 1.57 inches. Frame cracking is
                                                 BILLING CODE 4910–13–P                                  availability of this material at the FAA,             the result of fatigue caused by cyclic
                                                                                                         call 425–227–1221. It is also available               pressurization of the fuselage.
                                                                                                         on the Internet at http://                            Undetected cracks can grow until the
                                                                                                         www.regulations.gov by searching for                  frames sever. Ultimately, multiple
                                                                                                         and locating Docket No. FAA–2017–                     adjacent frames could be severed, or a
                                                                                                         0126.                                                 severed frame could exist near cracks in


                                            VerDate Sep<11>2014   13:51 Mar 01, 2017   Jkt 241001   PO 00000   Frm 00003   Fmt 4702   Sfmt 4702   E:\FR\FM\02MRP1.SGM   02MRP1


                                                 12304                     Federal Register / Vol. 82, No. 40 / Thursday, March 2, 2017 / Proposed Rules

                                                 the chem-milled fuselage skin. This                     described previously is likely to exist or              Differences Between This Proposed AD
                                                 condition, if not corrected, could result               develop in other products of the same                   and the Service Information
                                                 in uncontrolled decompression of the                    type design.                                               Boeing Alert Service Bulletin 737–
                                                 airplane.                                                                                                       53A1354, dated December 2, 2016,
                                                                                                         Proposed AD Requirements
                                                 Related Service Information Under 1                                                                             specifies to contact the manufacturer for
                                                 CFR Part 51                                                This proposed AD would require                       certain instructions, but this proposed
                                                                                                         accomplishing the actions specified in                  AD would require using repair methods,
                                                    We reviewed Boeing Alert Service                     the service information described                       modification deviations, and alteration
                                                 Bulletin 737–53A1354, dated December                    previously, except as discussed under                   deviations in one of the following ways:
                                                 2, 2016. The service information                        ‘‘Differences Between this Proposed AD                     • In accordance with a method that
                                                 describes procedures for repetitive high                and the Service Information.’’ For                      we approve; or
                                                 frequency eddy current (HFEC),                                                                                     • Using data that meet the
                                                                                                         information on the procedures and
                                                 detailed, and general visual inspections                                                                        certification basis of the airplane, and
                                                                                                         compliance times, see this service
                                                 in certain locations of the frame web.                                                                          that have been approved by the Boeing
                                                 This service information is reasonably                  information at http://
                                                                                                         www.regulations.gov by searching for                    Commercial Airplanes Organization
                                                 available because the interested parties                                                                        Designation Authorization (ODA) whom
                                                 have access to it through their normal                  and locating Docket No. FAA–2017–
                                                                                                         0126.                                                   we have authorized to make those
                                                 course of business or by the means                                                                              findings.
                                                 identified in the ADDRESSES section.                       The phrase ‘‘corrective actions’’ is
                                                                                                         used in this proposed AD. Corrective                    Costs of Compliance
                                                 FAA’s Determination
                                                                                                         actions correct or address any condition                   We estimate that this proposed AD
                                                   We are proposing this AD because we                   found. Corrective actions in an AD                      affects 82 airplanes of U.S. registry. We
                                                 evaluated all the relevant information                  could include, for example, repairs.                    estimate the following costs to comply
                                                 and determined the unsafe condition                                                                             with this proposed AD:
                                                                                                                      ESTIMATED COSTS
                                                                                                                                                                      Cost per                Cost on U.S.
                                                                  Action                                   Labor cost                       Parts cost                product                  operators

                                                 HFEC, detailed, and general visual          114 work-hours × $85 per hour =                             $0   $9,690 per inspection     $794,580 per inspection
                                                  inspections.                                 $9,690 per inspection cycle.                                     cycle.                    cycle.



                                                   We have received no definitive data                   substantial direct effect on the States, on             PART 39—AIRWORTHINESS
                                                 that would enable us to provide cost                    the relationship between the national                   DIRECTIVES
                                                 estimates for the on-condition actions                  Government and the States, or on the
                                                 specified in this proposed AD.                          distribution of power and                               ■ 1. The authority citation for part 39
                                                                                                         responsibilities among the various                      continues to read as follows:
                                                 Authority for This Rulemaking
                                                                                                         levels of government.                                       Authority: 49 U.S.C. 106(g), 40113, 44701.
                                                    Title 49 of the United States Code
                                                 specifies the FAA’s authority to issue                    For the reasons discussed above, I
                                                                                                                                                                 § 39.13    [Amended]
                                                 rules on aviation safety. Subtitle I,                   certify this proposed regulation:
                                                                                                                                                                 ■ 2. The FAA amends § 39.13 by adding
                                                 section 106, describes the authority of                   (1) Is not a ‘‘significant regulatory                 the following new airworthiness
                                                 the FAA Administrator. Subtitle VII:                    action’’ under Executive Order 12866,                   directive (AD):
                                                 Aviation Programs, describes in more                      (2) Is not a ‘‘significant rule’’ under
                                                 detail the scope of the Agency’s                                                                                The Boeing Company: Docket No. FAA–
                                                                                                         the DOT Regulatory Policies and                             2017–0126; Directorate Identifier 2016–
                                                 authority.                                              Procedures (44 FR 11034, February 26,
                                                    We are issuing this rulemaking under                                                                             NM–211–AD.
                                                                                                         1979),
                                                 the authority described in Subtitle VII,                                                                        (a) Comments Due Date
                                                 Part A, Subpart III, Section 44701:                       (3) Will not affect intrastate aviation                 We must receive comments by April 17,
                                                 ‘‘General requirements.’’ Under that                    in Alaska, and                                          2017.
                                                 section, Congress charges the FAA with                    (4) Will not have a significant                       (b) Affected ADs
                                                 promoting safe flight of civil aircraft in              economic impact, positive or negative,
                                                 air commerce by prescribing regulations                                                                           None.
                                                                                                         on a substantial number of small entities
                                                 for practices, methods, and procedures                  under the criteria of the Regulatory                    (c) Applicability
                                                 the Administrator finds necessary for                   Flexibility Act.                                           This AD applies to The Boeing Company
                                                 safety in air commerce. This regulation                                                                         Model 737–100, –200, –200C, –300, –400,
                                                 is within the scope of that authority                   List of Subjects in 14 CFR Part 39                      and –500 series airplanes, certificated in any
                                                 because it addresses an unsafe condition                  Air transportation, Aircraft, Aviation                category, as identified in Boeing Alert
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                                                 that is likely to exist or develop on                                                                           Service Bulletin 737–53A1354, dated
                                                                                                         safety, Incorporation by reference,                     December 2, 2016.
                                                 products identified in this rulemaking
                                                                                                         Safety.
                                                 action.                                                                                                         (d) Subject
                                                 Regulatory Findings                                     The Proposed Amendment                                    Air Transport Association (ATA) of
                                                                                                                                                                 America Code 53, Fuselage.
                                                   We determined that this proposed AD                     Accordingly, under the authority
                                                 would not have federalism implications                  delegated to me by the Administrator,                   (e) Unsafe Condition
                                                 under Executive Order 13132. This                       the FAA proposes to amend 14 CFR part                      This AD was prompted by reports of frame
                                                 proposed AD would not have a                            39 as follows:                                          web cracking at station (STA) 344 system



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                                                                         Federal Register / Vol. 82, No. 40 / Thursday, March 2, 2017 / Proposed Rules                                                 12305

                                                 penetration holes between stringer S–22L                requires repair before further flight using a         referenced service information at the FAA,
                                                 and stringer S–24L. We are issuing this AD              method approved in accordance with the                Transport Airplane Directorate, 1601 Lind
                                                 to detect and correct such cracking, which              procedures specified in paragraph (j) of this         Avenue SW., Renton, WA. For information
                                                 could grow in size until frames sever.                  AD.                                                   on the availability of this material at the
                                                 Multiple adjacent severed frames, or a                                                                        FAA, call 425–227–1221.
                                                 severed frame near cracks in the chem-milled            (j) Alternative Methods of Compliance
                                                                                                         (AMOCs)                                                 Issued in Renton, Washington, on February
                                                 fuselage skin, could result in an uncontrolled
                                                                                                            (1) The Manager, Seattle Aircraft                  21, 2017.
                                                 decompression of the airplane.
                                                                                                         Certification Office (ACO), FAA, has the              Dionne Palermo,
                                                 (f) Compliance                                          authority to approve AMOCs for this AD, if            Acting Manager, Transport Airplane
                                                    Comply with this AD within the                       requested using the procedures found in 14            Directorate, Aircraft Certification Service.
                                                 compliance times specified, unless already              CFR 39.19. In accordance with 14 CFR 39.19,           [FR Doc. 2017–03996 Filed 3–1–17; 8:45 am]
                                                 done.                                                   send your request to your principal inspector
                                                                                                                                                               BILLING CODE 4910–13–P
                                                                                                         or local Flight Standards District Office, as
                                                 (g) Group 1 Airplanes: Inspections and
                                                                                                         appropriate. If sending information directly
                                                 Corrective Actions
                                                                                                         to the manager of the ACO, send it to the
                                                    For airplanes identified as Group 1 in               attention of the person identified in                 DEPARTMENT OF TRANSPORTATION
                                                 Boeing Alert Service Bulletin 737–53A1354,              paragraph (k)(1) of this AD. Information may
                                                 dated December 2, 2016: Within 120 days                 be emailed to: 9-ANM-Seattle-ACO-AMOC-                Federal Aviation Administration
                                                 after the effective date of this AD, inspect the        Requests@faa.gov.
                                                 left- and right-side fuselage frames, as                   (2) Before using any approved AMOC,                14 CFR Part 39
                                                 specified in Parts 2 and 3 of the                       notify your appropriate principal inspector,
                                                 Accomplishment Instructions of Boeing Alert                                                                   [Docket No. FAA–2017–0156; Directorate
                                                                                                         or lacking a principal inspector, the manager         Identifier 2017–CE–003–AD]
                                                 Service Bulletin 737–53A1354, dated                     of the local flight standards district office/
                                                 December 2, 2016, and do all applicable                 certificate holding district office.                  RIN 2120–AA64
                                                 corrective actions, using a method approved                (3) An AMOC that provides an acceptable
                                                 in accordance with the procedures specified             level of safety may be used for any repair,           Airworthiness Directives; ZLIN
                                                 in paragraph (j) of this AD. Do all applicable          modification, or alteration required by this
                                                 corrective actions before further flight.
                                                                                                                                                               AIRCRAFT a.s. Airplanes
                                                                                                         AD if it is approved by the Boeing
                                                 (h) Group 2 Airplanes: Repetitive                       Commercial Airplanes Organization                     AGENCY: Federal Aviation
                                                 Inspections and Corrective Actions                      Designation Authorization (ODA) that has              Administration (FAA), Department of
                                                                                                         been authorized by the Manager, Seattle               Transportation (DOT).
                                                    For airplanes identified as Group 2 in
                                                                                                         ACO, to make those findings. To be                    ACTION: Notice of proposed rulemaking
                                                 Boeing Alert Service Bulletin 737–53A1354,
                                                                                                         approved, the repair method, modification
                                                 dated December 2, 2016: At the applicable
                                                                                                         deviation, or alteration deviation must meet
                                                                                                                                                               (NPRM).
                                                 times specified in paragraph 1.E.,
                                                                                                         the certification basis of the airplane, and the
                                                 ‘‘Compliance,’’ of Boeing Alert Service                                                                       SUMMARY:   We propose to adopt a new
                                                 Bulletin 737–53A1354, dated December 2,                 approval must specifically refer to this AD.
                                                                                                            (4) Except as required by paragraph (i)(2)         airworthiness directive (AD) for ZLIN
                                                 2016, except as required by paragraph (i)(1)                                                                  AIRCRAFT a.s. Model Z–242L airplanes
                                                 of this AD: Do the inspections specified in             of this AD: For service information that
                                                                                                         contains steps that are labeled as Required           that would supersede AD 2003–11–12.
                                                 paragraphs (h)(1), (h)(2), and (h)(3) of this
                                                 AD, and do all applicable corrective actions,           for Compliance (RC), the provisions of                This proposed AD results from
                                                 in accordance with the Accomplishment                   paragraphs (j)(4)(i) and (j)(4)(ii) of this AD        mandatory continuing airworthiness
                                                 Instructions of Boeing Alert Service Bulletin           apply.                                                information (MCAI) originated by an
                                                 757–53A1354, dated December 2, 2016,                       (i) The steps labeled as RC, including             aviation authority of another country to
                                                 except as required by paragraph (i)(2) of this          substeps under an RC step and any figures             identify and correct an unsafe condition
                                                 AD. Repeat the inspections thereafter at the            identified in an RC step, must be done to
                                                                                                                                                               on an aviation product. The MCAI
                                                 applicable times specified in paragraph 1.E.,           comply with the AD. If a step or substep is
                                                                                                         labeled ‘‘RC Exempt,’’ then the RC                    describes the unsafe condition as a need
                                                 ‘‘Compliance,’’ of Boeing Alert Service                                                                       to incorporate new revisions into the
                                                 Bulletin 757–53A1354, dated December 2,                 requirement is removed from that step or
                                                                                                         substep. An AMOC is required for any                  Limitations section, Chapter 9, of the
                                                 2016. Do all applicable corrective actions
                                                 before further flight.                                  deviations to RC steps, including substeps            FAA-approved maintenance program
                                                    (1) Do high frequency eddy current (HFEC),           and identified figures.                               (e.g., maintenance manual) to impose
                                                 detailed, and general visual inspections for               (ii) Steps not labeled as RC may be                new or more restrictive life limits on
                                                 cracking of the left side section 41 lower lobe         deviated from using accepted methods in               critical components. We are issuing this
                                                 frames, between STA 268.25 and STA 360.                 accordance with the operator’s maintenance            proposed AD to require actions to
                                                    (2) Do detailed and general visual                   or inspection program without obtaining
                                                                                                                                                               address the unsafe condition on these
                                                 inspections for cracking of the right side              approval of an AMOC, provided the RC steps,
                                                                                                         including substeps and identified figures, can        products.
                                                 section 41 lower lobe frames, between STA
                                                 268.25 and STA 360.                                     still be done as specified, and the airplane          DATES:  We must receive comments on
                                                    (3) Do an HFEC inspection for cracking of            can be put back in an airworthy condition.            this proposed AD by April 17, 2017.
                                                 the right side STA 312, STA 328, and STA                (k) Related Information                               ADDRESSES: You may send comments by
                                                 344, section 41 lower lobe frames.
                                                                                                            (1) For more information about this AD,            any of the following methods:
                                                 (i) Service Information Exceptions                      contact Gaetano Settineri, Aerospace                    • Federal eRulemaking Portal: Go to
                                                    (1) Where paragraph 1.E., ‘‘Compliance,’’ of         Engineer, Airframe Branch, ANM–120S,                  http://www.regulations.gov. Follow the
                                                 Boeing Alert Service Bulletin 737–53A1354,              FAA, Seattle ACO, 1601 Lind Avenue SW.,               instructions for submitting comments.
                                                                                                         Renton, WA 98057–3356; phone: 425–917–                  • Fax: (202) 493–2251.
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                                                 dated December 2, 2016, specifies a
                                                 compliance time ‘‘after the original date of            6577; fax: 425–917–6590; email:                         • Mail: U.S. Department of
                                                 this service bulletin,’’ this AD requires               gaetano.settineri@faa.gov.                            Transportation, Docket Operations, M–
                                                 compliance within the specified compliance                 (2) For service information identified in
                                                                                                                                                               30, West Building Ground Floor, Room
                                                 time after the effective date of this AD.               this AD, contact Boeing Commercial
                                                    (2) Where Boeing Alert Service Bulletin              Airplanes, Attention: Contractual & Data              W12–140, 1200 New Jersey Avenue SE.,
                                                 737–53A1354, dated December 2, 2016,                    Services (C&DS), 2600 Westminster Blvd.,              Washington, DC 20590.
                                                 specifies to contact Boeing for repair                  MC 110–SK57, Seal Beach, CA 90740–5600;                 • Hand Delivery: U.S. Department of
                                                 instructions, and specifies that action as              telephone 562–797–1717; Internet https://             Transportation, Docket Operations, M–
                                                 Required for Compliance (RC), this AD                   www.myboeingfleet.com. You may view this              30, West Building Ground Floor, Room


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Document Created: 2017-03-02 00:09:32
Document Modified: 2017-03-02 00:09:32
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionProposed Rules
ActionNotice of proposed rulemaking (NPRM).
DatesWe must receive comments on this proposed AD by April 17, 2017.
ContactGaetano Settineri, Aerospace Engineer, Airframe Branch, ANM-120S, FAA, Seattle Aircraft Certification Office (ACO), 1601 Lind Avenue SW., Renton, WA 98057-3356; phone: 425-917- 6577; fax: 425-917-6590; email: [email protected]
FR Citation82 FR 12303 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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