83_FR_24536 83 FR 24433 - Airworthiness Directives; The Boeing Company Airplanes

83 FR 24433 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 103 (May 29, 2018)

Page Range24433-24435
FR Document2018-11416

We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes. This proposed AD was prompted by the results of a fleet survey, which revealed cracking in bulkhead frame webs at a certain body station. This proposed AD would require repetitive inspections of the bulkhead frame web at a certain body station and applicable on-condition actions. We are proposing this AD to address the unsafe condition on these products.

Federal Register, Volume 83 Issue 103 (Tuesday, May 29, 2018)
[Federal Register Volume 83, Number 103 (Tuesday, May 29, 2018)]
[Proposed Rules]
[Pages 24433-24435]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-11416]


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

DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0452; Product Identifier 2017-NM-150-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 all 
The Boeing Company Model 727C, 727-100, 727-100C, 727-200, and 727-200F 
series airplanes. This proposed AD was prompted by the results of a 
fleet survey, which revealed cracking in bulkhead frame webs at a 
certain body station. This proposed AD would require repetitive 
inspections of the bulkhead frame web at a certain body station and 
applicable on-condition actions. We are proposing this AD to address 
the unsafe condition on these products.

DATES: We must receive comments on this proposed AD by July 13, 2018.

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 
Standards Branch, 2200 South 216th St., Des Moines, WA. For information 
on the availability of this material at the FAA, call 206-231-3195. It 
is also available on the internet at http://www.regulations.gov by 
searching for and locating Docket No. FAA-2018-0452.

[[Page 24434]]

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-2018-
0452; 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 NPRM, 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 Section, FAA, Los Angeles ACO Branch, 3960 Paramount 
Boulevard, Lakewood, CA 90712-4137; phone: 562-627-5232; fax: 562-627-
5210; 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-2018-0452; 
Product Identifier 2017-NM-150-AD'' at the beginning of your comments. 
We specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this NPRM. We will consider all 
comments received by the closing date and may amend this NPRM 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 a report indicating that the results of a fleet 
survey of retired 737 airplanes revealed cracking in the bulkhead frame 
web at the upper lobe of the station (STA) 259.5 bulkhead frame webs. 
Two web cracks, measuring 0.45 inch and 1.7 inches, were found at the 
outer chord fastener locations between stringer (S)-11R and S-12R. A 
subsequent review of fleet data sources revealed additional crack 
findings on other 737 airplanes in the left and right side frame webs 
between S-11 and S-12. Fleet findings have been reported on a total of 
5 airplanes with a range of between 60,640 and 73,655 total flight 
cycles. Such cracking may lead to subsequent failure of the skin and 
cockpit window surround structure, and could result in rapid 
decompression. No cracks have been reported on Model 727 airplanes but 
Model 727 and Model 737 airplanes have a similar frame installation at 
STA 259.5.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Requirements Bulletin 727-53A0235 RB, 
dated October 12, 2017. The service information describes procedures 
for repetitive high frequency eddy current inspections and low 
frequency eddy current inspections for cracks of the STA 259.5 bulkhead 
frame web from the first stiffener above S-10 to S-13, on the left and 
right sides of the airplane, and applicable on-condition actions. 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 accomplishment of the actions 
identified in the Boeing Alert Requirements Bulletin 727-53A0235 RB, 
dated October 12, 2017, described previously, except for any 
differences identified as exceptions in the regulatory text of this 
proposed AD.
    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-2018-0452.

Explanation of Requirements Bulletin

    The FAA worked in conjunction with industry, under the 
Airworthiness Directives Implementation Aviation Rulemaking Committee 
(AD ARC), to enhance the AD system. One enhancement is a process for 
annotating which steps in the service information are ``required for 
compliance'' (RC) with an AD. Boeing has implemented this RC concept 
into Boeing service bulletins.
    In an effort to further improve the quality of ADs and AD-related 
Boeing service information, a joint process improvement initiative was 
worked between the FAA and Boeing. The initiative resulted in the 
development of a new process in which the service information more 
clearly identifies the actions needed to address the unsafe condition 
in the ``Accomplishment Instructions.'' The new process results in a 
Boeing Requirements Bulletin, which contains only the actions needed to 
address the unsafe condition (i.e., only the RC actions).

Costs of Compliance

    We estimate that this proposed AD affects 106 airplanes of U.S. 
registry. We estimate the following costs to comply with this proposed 
AD:

                                      Estimated Costs for Required Actions
----------------------------------------------------------------------------------------------------------------
                                                                                                 Cost on U.S.
             Action                     Labor cost          Parts cost     Cost per product        operators
----------------------------------------------------------------------------------------------------------------
Inspections....................  41 work-hours x $85 per              $0  $3,485 per          $369,410 per
                                  hour = $3,485 per                        inspection cycle.   inspection cycle.
                                  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

[[Page 24435]]

that is likely to exist or develop on products identified in this 
rulemaking action.
    This proposed AD is issued in accordance with authority delegated 
by the Executive Director, Aircraft Certification Service, as 
authorized by FAA Order 8000.51C. In accordance with that order, 
issuance of ADs is normally a function of the Compliance and 
Airworthiness Division, but during this transition period, the 
Executive Director has delegated the authority to issue ADs applicable 
to transport category airplanes to the Director of the System Oversight 
Division.

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-2018-0452; Product Identifier 
2017-NM-150-AD.

(a) Comments Due Date

    We must receive comments by July 13, 2018.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to all The Boeing Company Model 727C, 727-100, 
727-100C, 727-200, and 727-200F series airplanes, certificated in 
any category.

(d) Subject

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

(e) Unsafe Condition

    This AD was prompted by the results of a fleet survey which 
revealed cracking in bulkhead frame webs at a certain body station. 
We are issuing this AD to address cracking in the station 259.5 
bulkhead frame web from the first stiffener above stringer S-10 to 
S-13. Such cracking may lead to subsequent failure of the skin and 
cockpit window surround structure, and could result in rapid 
decompression.

(f) Compliance

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

(g) Required Actions

    Except as required by paragraph (h) of this AD: At the 
applicable times specified in the ``Compliance'' paragraph of Boeing 
Alert Requirements Bulletin 727-53A0235 RB, dated October 12, 2017, 
do all applicable actions identified in, and in accordance with, the 
Accomplishment Instructions of Boeing Alert Requirements Bulletin 
727-53A0235 RB, dated October 12, 2017.

    Note 1 to paragraph (g) of this AD:  Guidance for accomplishing 
the actions required by this AD can be found in Boeing Alert Service 
Bulletin 727-53A0235, dated October 12, 2017, which is referred to 
in Boeing Alert Requirements Bulletin 727-53A0235 RB, dated October 
12, 2017.

(h) Exceptions to Service Information Specifications

    (1) For purposes of determining compliance with the requirements 
of this AD: Where Boeing Alert Requirements Service Bulletin 727-
53A0235 RB, dated October 12, 2017, uses the phrase ``the original 
issue date of Requirements Bulletin 727-53A0235 RB,'' this AD 
requires using ``the effective date of this AD.''
    (2) Where Boeing Alert Requirements Bulletin 727-53A0235 RB, 
dated October 12, 2017, specifies contacting Boeing, this AD 
requires repair using a method approved in accordance with the 
procedures specified in paragraph (j) of this AD.

(i) Special Flight Permit

    Special flight permits, as described in Section 21.197 and 
Section 21.199 of the Federal Aviation Regulations (14 CFR 21.197 
and 21.199), may be issued to operate the airplane to a location 
where the requirements of this AD can be accomplished, but 
concurrence by the Manager, Los Angeles ACO Branch, FAA, is required 
before issuance of the special flight permit.

(j) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Los Angeles ACO Branch, 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 certification office, 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, Los Angeles ACO Branch, 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.

(k) Related Information

    (1) For more information about this AD, contact George Garrido, 
Aerospace Engineer, Airframe Section, FAA, Los Angeles ACO Branch, 
3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627-
5232; fax: 562-627-5210; 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 Standards Branch, 2200 South 216th 
St., Des Moines, WA. For information on the availability of this 
material at the FAA, call 206-231-3195.

    Issued in Des Moines, Washington, on May 14, 2018.
Dionne Palermo,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-11416 Filed 5-25-18; 8:45 am]
 BILLING CODE 4910-13-P



                                                                          Federal Register / Vol. 83, No. 103 / Tuesday, May 29, 2018 / Proposed Rules                                           24433

                                                 including Appendixes 02 and 03, dated                   DOA, the approval must include the DOA-               DEPARTMENT OF TRANSPORTATION
                                                 September 27, 2017; as applicable.                      authorized signature.
                                                                                                            (3) Reporting Requirements: A federal              Federal Aviation Administration
                                                 (l) Parts Installation Limitations                      agency may not conduct or sponsor, and a
                                                    (1) Except as specified in paragraph (l)(2)          person is not required to respond to, nor
                                                 of this AD: For Group 1 airplanes, after the            shall a person be subject to a penalty for            14 CFR Part 39
                                                 effective date of this AD, an affected slat             failure to comply with a collection of                [Docket No. FAA–2018–0452; Product
                                                 track may be installed, provided the                    information subject to the requirements of            Identifier 2017–NM–150–AD]
                                                 installation is accomplished using a method             the Paperwork Reduction Act unless that
                                                 approved by the Manager, International                  collection of information displays a current          RIN 2120–AA64
                                                 Section, Transport Standards Branch, FAA;               valid OMB Control Number. The OMB
                                                 or EASA; or Airbus’s EASA DOA. If                       Control Number for this information                   Airworthiness Directives; The Boeing
                                                 approved by the DOA, the approval must                  collection is 2120–0056. Public reporting for         Company Airplanes
                                                 include the DOA-authorized signature.                   this collection of information is estimated to
                                                                                                         be approximately 1 hour per response,                 AGENCY: Federal Aviation
                                                    (2) After modification of a Group 1 airplane
                                                 as specified in paragraph (k)(2) of this AD, no         including the time for reviewing instructions,        Administration (FAA), DOT.
                                                 person may install an affected slat track on            completing and reviewing the collection of            ACTION: Notice of proposed rulemaking
                                                 that airplane.                                          information. All responses to this collection         (NPRM).
                                                    (3) For Group 2 airplanes: As of the                 of information are mandatory. Comments
                                                 effective date of this AD, no person may                concerning the accuracy of this burden and            SUMMARY:   We propose to adopt a new
                                                 install an affected slat track on any Group 2           suggestions for reducing the burden should            airworthiness directive (AD) for all The
                                                                                                         be directed to the FAA at: 800 Independence
                                                 airplane.                                                                                                     Boeing Company Model 727C, 727–100,
                                                                                                         Ave. SW, Washington, DC 20591, Attn:
                                                 (m) Credit for Previous Actions                         Information Collection Clearance Officer,             727–100C, 727–200, and 727–200F
                                                                                                         AES–200.                                              series airplanes. This proposed AD was
                                                   This paragraph provides credit for actions
                                                 required by paragraphs (h), (i), and (j) of this           (4) Required for Compliance (RC): Except           prompted by the results of a fleet
                                                                                                         as required by paragraph (i) of this AD: If any       survey, which revealed cracking in
                                                 AD, if those actions were performed before
                                                                                                         service information contains procedures or            bulkhead frame webs at a certain body
                                                 the effective date of this AD using Airbus
                                                                                                         tests that are identified as RC, those                station. This proposed AD would
                                                 Service Bulletin A330–57–3123, dated June
                                                                                                         procedures and tests must be done to comply
                                                 14, 2016, or Airbus Service Bulletin A340–
                                                                                                         with this AD; any procedures or tests that are
                                                                                                                                                               require repetitive inspections of the
                                                 57–4130, dated June 14, 2016, provided that             not identified as RC are recommended. Those           bulkhead frame web at a certain body
                                                 within 12 months after the effective date of            procedures and tests that are not identified          station and applicable on-condition
                                                 this AD, the additional work identified in              as RC may be deviated from using accepted             actions. We are proposing this AD to
                                                 Airbus Service Bulletin A330–57–3123,                   methods in accordance with the operator’s             address the unsafe condition on these
                                                 Revision 01, including Appendixes 02 and                maintenance or inspection program without
                                                 03, dated September 27, 2017, or Airbus
                                                                                                                                                               products.
                                                                                                         obtaining approval of an AMOC, provided
                                                 Service Bulletin A340–57–4130, Revision 01,             the procedures and tests identified as RC can         DATES:   We must receive comments on
                                                 including Appendixes 02 and 03, dated                   be done and the airplane can be put back in           this proposed AD by July 13, 2018.
                                                 September 27, 2017, as applicable, has been             an airworthy condition. Any substitutions or          ADDRESSES: You may send comments,
                                                 completed in accordance with Airbus Service             changes to procedures or tests identified as
                                                 Bulletin A330–57–3123, Revision 01,                                                                           using the procedures found in 14 CFR
                                                                                                         RC require approval of an AMOC.
                                                 including Appendixes 02 and 03, dated                                                                         11.43 and 11.45, by any of the following
                                                 September 27, 2017, or Airbus Service                   (o) Related Information                               methods:
                                                 Bulletin A340–57–4130, Revision 01,                       (1) Refer to Mandatory Continuing                      • Federal eRulemaking Portal: Go to
                                                 including Appendixes 02 and 03, dated                   Airworthiness Information (MCAI) EASA AD              http://www.regulations.gov. Follow the
                                                 September 27, 2017, as applicable.                      2017–0060, dated April 7, 2017, for related           instructions for submitting comments.
                                                 (n) Other FAA AD Provisions
                                                                                                         information. This MCAI may be found in the               • Fax: 202–493–2251.
                                                                                                         AD docket on the internet at http://                     • Mail: U.S. Department of
                                                   The following provisions also apply to this           www.regulations.gov by searching for and              Transportation, Docket Operations, M–
                                                 AD:                                                     locating Docket No. FAA–2018–0454.
                                                   (1) Alternative Methods of Compliance                   (2) For more information about this AD,
                                                                                                                                                               30, West Building Ground Floor, Room
                                                 (AMOCs): The Manager, International                     contact Vladimir Ulyanov, Aerospace                   W12–140, 1200 New Jersey Avenue SE,
                                                 Section, Transport Standards Branch, FAA,               Engineer, International Section, Transport            Washington, DC 20590.
                                                 has the authority to approve AMOCs for this             Standards Branch, FAA, 2200 South 216th                  • Hand Delivery: Deliver to Mail
                                                 AD, if requested using the procedures found             St., Des Moines, WA 98198; telephone and              address above between 9 a.m. and 5
                                                 in 14 CFR 39.19. In accordance with 14 CFR              fax: 206 231 3229.                                    p.m., Monday through Friday, except
                                                 39.19, send your request to your principal                (3) For service information identified in           Federal holidays.
                                                 inspector or local Flight Standards District            this AD, contact Airbus SAS, Airworthiness               For service information identified in
                                                 Office, as appropriate. If sending information          Office—EAL, 1 Rond Point Maurice Bellonte,
                                                                                                         31707 Blagnac Cedex, France; telephone: +33
                                                                                                                                                               this NPRM, contact Boeing Commercial
                                                 directly to the International Branch, send it
                                                                                                         5 61 93 36 96; fax: +33 5 61 93 45 80; email:         Airplanes, Attention: Contractual & Data
                                                 to the attention of the person identified in
                                                 paragraph (o)(2) of this AD. Information may            airworthiness.A330-A340@airbus.com;                   Services (C&DS), 2600 Westminster
                                                 be emailed to: 9-ANM-116-AMOC-                          internet http://www.airbus.com. You may               Blvd., MC 110–SK57, Seal Beach, CA
                                                 REQUESTS@faa.gov. Before using any                      view this service information at the FAA,             90740–5600; telephone 562–797–1717;
                                                 approved AMOC, notify your appropriate                  Transport Standards Branch, 2200 South                internet https://www.myboeingfleet.
                                                 principal inspector, or lacking a principal             216th St., Des Moines, WA. For information            com. You may view this referenced
                                                 inspector, the manager of the local flight              on the availability of this material at the           service information at the FAA,
daltland on DSKBBV9HB2PROD with PROPOSALS




                                                 standards district office/certificate holding           FAA, call 206–231–3195.
                                                                                                                                                               Transport Standards Branch, 2200
                                                 district office.                                          Issued in Des Moines, Washington, on May            South 216th St., Des Moines, WA. For
                                                   (2) Contacting the Manufacturer: For any              21, 2018.                                             information on the availability of this
                                                 requirement in this AD to obtain corrective             James Cashdollar,
                                                 actions from a manufacturer, the action must                                                                  material at the FAA, call 206–231–3195.
                                                 be accomplished using a method approved                 Acting Director, System Oversight Division,           It is also available on the internet at
                                                 by the Manager, International Section,                  Aircraft Certification Service.                       http://www.regulations.gov by searching
                                                 Transport Standards Branch, FAA; or EASA;               [FR Doc. 2018–11415 Filed 5–25–18; 8:45 am]           for and locating Docket No. FAA–2018–
                                                 or Airbus’s EASA DOA. If approved by the                BILLING CODE 4910–13–P                                0452.


                                            VerDate Sep<11>2014   16:08 May 25, 2018   Jkt 244001   PO 00000   Frm 00019   Fmt 4702   Sfmt 4702   E:\FR\FM\29MYP1.SGM   29MYP1


                                                 24434                    Federal Register / Vol. 83, No. 103 / Tuesday, May 29, 2018 / Proposed Rules

                                                 Examining the AD Docket                                 retired 737 airplanes revealed cracking                 Proposed AD Requirements
                                                   You may examine the AD docket on                      in the bulkhead frame web at the upper
                                                                                                         lobe of the station (STA) 259.5 bulkhead                  This proposed AD would require
                                                 the internet at http://                                                                                         accomplishment of the actions
                                                 www.regulations.gov by searching for                    frame webs. Two web cracks, measuring
                                                                                                         0.45 inch and 1.7 inches, were found at                 identified in the Boeing Alert
                                                 and locating Docket No. FAA–2018–
                                                                                                         the outer chord fastener locations                      Requirements Bulletin 727–53A0235
                                                 0452; or in person at the Docket
                                                                                                         between stringer (S)–11R and S–12R. A                   RB, dated October 12, 2017, described
                                                 Management Facility between 9 a.m.
                                                 and 5 p.m., Monday through Friday,                      subsequent review of fleet data sources                 previously, except for any differences
                                                 except Federal holidays. The AD docket                  revealed additional crack findings on                   identified as exceptions in the
                                                 contains this NPRM, the regulatory                      other 737 airplanes in the left and right               regulatory text of this proposed AD.
                                                 evaluation, any comments received, and                  side frame webs between S–11 and                          For information on the procedures
                                                 other information. The street address for               S–12. Fleet findings have been reported                 and compliance times, see this service
                                                 the Docket Office (phone: 800–647–                      on a total of 5 airplanes with a range of               information at http://
                                                 5527) is in the ADDRESSES section.                      between 60,640 and 73,655 total flight                  www.regulations.gov by searching for
                                                 Comments will be available in the AD                    cycles. Such cracking may lead to                       and locating Docket No. FAA–2018–
                                                 docket shortly after receipt.                           subsequent failure of the skin and                      0452.
                                                 FOR FURTHER INFORMATION CONTACT:                        cockpit window surround structure, and
                                                 George Garrido, Aerospace Engineer,                                                                             Explanation of Requirements Bulletin
                                                                                                         could result in rapid decompression. No
                                                 Airframe Section, FAA, Los Angeles                      cracks have been reported on Model 727                    The FAA worked in conjunction with
                                                 ACO Branch, 3960 Paramount                              airplanes but Model 727 and Model 737                   industry, under the Airworthiness
                                                 Boulevard, Lakewood, CA 90712–4137;                     airplanes have a similar frame                          Directives Implementation Aviation
                                                 phone: 562–627–5232; fax: 562–627–                      installation at STA 259.5.                              Rulemaking Committee (AD ARC), to
                                                 5210; email: george.garrido@faa.gov.                                                                            enhance the AD system. One
                                                 SUPPLEMENTARY INFORMATION:                              Related Service Information Under
                                                                                                                                                                 enhancement is a process for annotating
                                                                                                         1 CFR Part 51
                                                 Comments Invited                                                                                                which steps in the service information
                                                   We invite you to send any written                        We reviewed Boeing Alert                             are ‘‘required for compliance’’ (RC) with
                                                 relevant data, views, or arguments about                Requirements Bulletin 727–53A0235                       an AD. Boeing has implemented this RC
                                                 this proposal. Send your comments to                    RB, dated October 12, 2017. The service                 concept into Boeing service bulletins.
                                                 an address listed under the ADDRESSES                   information describes procedures for                      In an effort to further improve the
                                                 section. Include ‘‘Docket No. FAA–                      repetitive high frequency eddy current                  quality of ADs and AD-related Boeing
                                                 2018–0452; Product Identifier 2017–                     inspections and low frequency eddy                      service information, a joint process
                                                 NM–150–AD’’ at the beginning of your                    current inspections for cracks of the                   improvement initiative was worked
                                                 comments. We specifically invite                        STA 259.5 bulkhead frame web from the                   between the FAA and Boeing. The
                                                 comments on the overall regulatory,                     first stiffener above S–10 to S–13, on the              initiative resulted in the development of
                                                 economic, environmental, and energy                     left and right sides of the airplane, and               a new process in which the service
                                                 aspects of this NPRM. We will consider                  applicable on-condition actions. This                   information more clearly identifies the
                                                 all comments received by the closing                    service information is reasonably                       actions needed to address the unsafe
                                                 date and may amend this NPRM                            available because the interested parties                condition in the ‘‘Accomplishment
                                                 because of those comments.                              have access to it through their normal                  Instructions.’’ The new process results
                                                    We will post all comments we                         course of business or by the means                      in a Boeing Requirements Bulletin,
                                                 receive, without change, to http://                     identified in the ADDRESSES section.                    which contains only the actions needed
                                                 www.regulations.gov, including any                                                                              to address the unsafe condition (i.e.,
                                                 personal information you provide. We                    FAA’s Determination
                                                                                                                                                                 only the RC actions).
                                                 will also post a report summarizing each
                                                 substantive verbal contact we receive                     We are proposing this AD because we                   Costs of Compliance
                                                 about this proposed AD.                                 evaluated all the relevant information
                                                                                                         and determined the unsafe condition                        We estimate that this proposed AD
                                                 Discussion                                              described previously is likely to exist or              affects 106 airplanes of U.S. registry. We
                                                   We have received a report indicating                  develop in other products of the same                   estimate the following costs to comply
                                                 that the results of a fleet survey of                   type design.                                            with this proposed AD:

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

                                                 Inspections ..   41 work-hours × $85 per hour = $3,485 per inspec-                                $0   $3,485 per inspection      $369,410 per inspection
                                                                    tion cycle.                                                                           cycle.                     cycle.



                                                   We have received no definitive data                   section 106, describes the authority of                 section, Congress charges the FAA with
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                                                 that would enable us to provide cost                    the FAA Administrator. Subtitle VII:                    promoting safe flight of civil aircraft in
                                                 estimates for the on-condition actions                  Aviation Programs, describes in more                    air commerce by prescribing regulations
                                                 specified in this proposed AD.                          detail the scope of the Agency’s                        for practices, methods, and procedures
                                                                                                         authority.                                              the Administrator finds necessary for
                                                 Authority for This Rulemaking                              We are issuing this rulemaking under                 safety in air commerce. This regulation
                                                   Title 49 of the United States Code                    the authority described in Subtitle VII,                is within the scope of that authority
                                                 specifies the FAA’s authority to issue                  Part A, Subpart III, Section 44701:                     because it addresses an unsafe condition
                                                 rules on aviation safety. Subtitle I,                   ‘‘General requirements.’’ Under that


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                                                                          Federal Register / Vol. 83, No. 103 / Tuesday, May 29, 2018 / Proposed Rules                                                 24435

                                                 that is likely to exist or develop on                   (a) Comments Due Date                                 concurrence by the Manager, Los Angeles
                                                 products identified in this rulemaking                    We must receive comments by July 13,                ACO Branch, FAA, is required before
                                                 action.                                                 2018.                                                 issuance of the special flight permit.
                                                    This proposed AD is issued in                        (b) Affected ADs                                      (j) Alternative Methods of Compliance
                                                 accordance with authority delegated by                                                                        (AMOCs)
                                                                                                           None.
                                                 the Executive Director, Aircraft
                                                                                                                                                                 (1) The Manager, Los Angeles ACO Branch,
                                                 Certification Service, as authorized by                 (c) Applicability
                                                                                                                                                               FAA, has the authority to approve AMOCs
                                                 FAA Order 8000.51C. In accordance                          This AD applies to all The Boeing                  for this AD, if requested using the procedures
                                                 with that order, issuance of ADs is                     Company Model 727C, 727–100, 727–100C,
                                                                                                                                                               found in 14 CFR 39.19. In accordance with
                                                 normally a function of the Compliance                   727–200, and 727–200F series airplanes,
                                                                                                         certificated in any category.                         14 CFR 39.19, send your request to your
                                                 and Airworthiness Division, but during
                                                                                                                                                               principal inspector or local Flight Standards
                                                 this transition period, the Executive                   (d) Subject                                           District Office, as appropriate. If sending
                                                 Director has delegated the authority to                   Air Transport Association (ATA) of                  information directly to the manager of the
                                                 issue ADs applicable to transport                       America Code 53, Fuselage.                            certification office, send it to the attention of
                                                 category airplanes to the Director of the                                                                     the person identified in paragraph (k)(1) of
                                                 System Oversight Division.                              (e) Unsafe Condition
                                                                                                                                                               this AD. Information may be emailed to:
                                                                                                            This AD was prompted by the results of a
                                                 Regulatory Findings                                                                                           9-ANM-LAACO-AMOC-Requests@faa.gov.
                                                                                                         fleet survey which revealed cracking in
                                                                                                         bulkhead frame webs at a certain body                   (2) Before using any approved AMOC,
                                                   We determined that this proposed AD
                                                                                                         station. We are issuing this AD to address            notify your appropriate principal inspector,
                                                 would not have federalism implications                                                                        or lacking a principal inspector, the manager
                                                 under Executive Order 13132. This                       cracking in the station 259.5 bulkhead frame
                                                                                                         web from the first stiffener above stringer           of the local flight standards district office/
                                                 proposed AD would not have a                                                                                  certificate holding district office.
                                                                                                         S–10 to S–13. Such cracking may lead to
                                                 substantial direct effect on the States, on             subsequent failure of the skin and cockpit              (3) An AMOC that provides an acceptable
                                                 the relationship between the national                   window surround structure, and could result           level of safety may be used for any repair,
                                                 Government and the States, or on the                    in rapid decompression.                               modification, or alteration required by this
                                                 distribution of power and                                                                                     AD if it is approved by the Boeing
                                                                                                         (f) Compliance
                                                 responsibilities among the various                                                                            Commercial Airplanes Organization
                                                 levels of government.                                      Comply with this AD within the
                                                                                                         compliance times specified, unless already            Designation Authorization (ODA) that has
                                                   For the reasons discussed above, I                                                                          been authorized by the Manager, Los Angeles
                                                                                                         done.
                                                 certify this proposed regulation:                                                                             ACO Branch, to make those findings. To be
                                                   (1) Is not a ‘‘significant regulatory                 (g) Required Actions                                  approved, the repair method, modification
                                                 action’’ under Executive Order 12866,                      Except as required by paragraph (h) of this        deviation, or alteration deviation must meet
                                                   (2) Is not a ‘‘significant rule’’ under               AD: At the applicable times specified in the          the certification basis of the airplane, and the
                                                 the DOT Regulatory Policies and                         ‘‘Compliance’’ paragraph of Boeing Alert              approval must specifically refer to this AD.
                                                 Procedures (44 FR 11034, February 26,                   Requirements Bulletin 727–53A0235 RB,
                                                 1979),                                                  dated October 12, 2017, do all applicable             (k) Related Information
                                                   (3) Will not affect intrastate aviation               actions identified in, and in accordance with,           (1) For more information about this AD,
                                                 in Alaska, and                                          the Accomplishment Instructions of Boeing             contact George Garrido, Aerospace Engineer,
                                                   (4) Will not have a significant                       Alert Requirements Bulletin 727–53A0235
                                                                                                                                                               Airframe Section, FAA, Los Angeles ACO
                                                                                                         RB, dated October 12, 2017.
                                                 economic impact, positive or negative,                                                                        Branch, 3960 Paramount Boulevard,
                                                 on a substantial number of small entities                  Note 1 to paragraph (g) of this AD:                Lakewood, CA 90712–4137; phone: 562–627–
                                                                                                         Guidance for accomplishing the actions
                                                 under the criteria of the Regulatory                    required by this AD can be found in Boeing
                                                                                                                                                               5232; fax: 562–627–5210; email:
                                                 Flexibility Act.                                        Alert Service Bulletin 727–53A0235, dated             george.garrido@faa.gov.
                                                                                                         October 12, 2017, which is referred to in                (2) For service information identified in
                                                 List of Subjects in 14 CFR Part 39                                                                            this AD, contact Boeing Commercial
                                                                                                         Boeing Alert Requirements Bulletin 727–
                                                   Air transportation, Aircraft, Aviation                53A0235 RB, dated October 12, 2017.                   Airplanes, Attention: Contractual & Data
                                                 safety, Incorporation by reference,                                                                           Services (C&DS), 2600 Westminster Blvd.,
                                                 Safety.                                                 (h) Exceptions to Service Information                 MC 110–SK57, Seal Beach, CA 90740–5600;
                                                                                                         Specifications                                        telephone 562–797–1717; internet https://
                                                 The Proposed Amendment                                    (1) For purposes of determining                     www.myboeingfleet.com. You may view this
                                                   Accordingly, under the authority                      compliance with the requirements of this AD:          referenced service information at the FAA,
                                                 delegated to me by the Administrator,                   Where Boeing Alert Requirements Service               Transport Standards Branch, 2200 South
                                                 the FAA proposes to amend 14 CFR part                   Bulletin 727–53A0235 RB, dated October 12,            216th St., Des Moines, WA. For information
                                                                                                         2017, uses the phrase ‘‘the original issue date
                                                 39 as follows:                                                                                                on the availability of this material at the
                                                                                                         of Requirements Bulletin 727–53A0235 RB,’’
                                                                                                                                                               FAA, call 206–231–3195.
                                                                                                         this AD requires using ‘‘the effective date of
                                                 PART 39—AIRWORTHINESS
                                                                                                         this AD.’’                                              Issued in Des Moines, Washington, on May
                                                 DIRECTIVES                                                (2) Where Boeing Alert Requirements                 14, 2018.
                                                                                                         Bulletin 727–53A0235 RB, dated October 12,
                                                 ■ 1. The authority citation for part 39                                                                       Dionne Palermo,
                                                                                                         2017, specifies contacting Boeing, this AD
                                                 continues to read as follows:                           requires repair using a method approved in            Acting Director, System Oversight Division,
                                                     Authority: 49 U.S.C. 106(g), 40113, 44701.          accordance with the procedures specified in           Aircraft Certification Service.
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                                                                                                         paragraph (j) of this AD.                             [FR Doc. 2018–11416 Filed 5–25–18; 8:45 am]
                                                 § 39.13   [Amended]
                                                                                                         (i) Special Flight Permit                             BILLING CODE 4910–13–P
                                                 ■ 2. The FAA amends § 39.13 by adding
                                                                                                            Special flight permits, as described in
                                                 the following new airworthiness
                                                                                                         Section 21.197 and Section 21.199 of the
                                                 directive (AD):                                         Federal Aviation Regulations (14 CFR 21.197
                                                 The Boeing Company: Docket No. FAA–                     and 21.199), may be issued to operate the
                                                     2018–0452; Product Identifier 2017–                 airplane to a location where the requirements
                                                     NM–150–AD.                                          of this AD can be accomplished, but



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Document Created: 2018-05-26 00:48:33
Document Modified: 2018-05-26 00:48:33
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 July 13, 2018.
ContactGeorge Garrido, Aerospace Engineer, Airframe Section, FAA, Los Angeles ACO Branch, 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627-5232; fax: 562-627- 5210; email: [email protected]
FR Citation83 FR 24433 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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