82_FR_28094 82 FR 27977 - Airworthiness Directives; The Boeing Company Airplanes

82 FR 27977 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 82, Issue 117 (June 20, 2017)

Page Range27977-27979
FR Document2017-12175

We are superseding Airworthiness Directive (AD) 2007-26-04 for certain The Boeing Company Model 737-100, -200, -200C, -300, -400, and -500 series airplanes. AD 2007-26-04 required repetitive inspections for cracking of certain fasteners, and repair if necessary; and a preventive modification, which terminated the repetitive inspections. This AD removes the mandatory modification; adds repetitive inspections of the skin for cracking, a one-time inspection for defects of the production countersunk rivets, and corrective actions if necessary; and adds an optional skin trim-out repair, which will terminate certain inspections. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that certain skin panels are subject to widespread fatigue damage (WFD). We are issuing this AD to address the unsafe condition on these products.

Federal Register, Volume 82 Issue 117 (Tuesday, June 20, 2017) 
[Federal Register Volume 82, Number 117 (Tuesday, June 20, 2017)]
[Rules and Regulations]
[Pages 27977-27979]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2017-12175]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2016-9188; Directorate Identifier 2016-NM-102-AD; 
Amendment 39-18920; AD 2017-12-05]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: We are superseding Airworthiness Directive (AD) 2007-26-04 for 
certain The Boeing Company Model 737-100, -200, -200C, -300, -400, and 
-500 series airplanes. AD 2007-26-04 required repetitive inspections 
for cracking of certain fasteners, and repair if necessary; and a 
preventive modification, which terminated the repetitive inspections. 
This AD removes the mandatory modification; adds repetitive inspections 
of the skin for cracking, a one-time inspection for defects of the 
production countersunk rivets, and corrective actions if necessary; and 
adds an optional skin trim-out repair, which will terminate certain 
inspections. This AD was prompted by an evaluation by the design 
approval holder (DAH) indicating that certain skin panels are subject 
to widespread fatigue damage (WFD). We are issuing this AD to address 
the unsafe condition on these products.

DATES: This AD is effective July 25, 2017.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of July 25, 
2017.

ADDRESSES: For service information identified in this final rule, 
contact Boeing Commercial Airplanes, Attention: Contractual & Data 
Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 
90740-5600; telephone 562-797-1717; Internet https://www.myboeingfleet.com. You may view this referenced service information 
at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., 
Renton, WA. For information on the availability of this material at the 
FAA, call 425-227-1221. It is also available on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-
9188.

Examining the AD Docket

    You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2016-
9188; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains this AD, the regulatory evaluation, any comments received, and 
other information. The address for the Docket Office (phone: 800-647-
5527) is Docket Management Facility, U.S. Department of Transportation, 
Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 
New Jersey Avenue SE., Washington, DC 20590.

FOR FURTHER INFORMATION CONTACT: Jennifer Tsakoumakis, Aerospace 
Engineer, Airframe Branch, ANM-120L, FAA, Los Angeles Aircraft 
Certification Office (ACO), 3960 Paramount Boulevard, Lakewood, CA 
90712-4137; phone: 562-627-5264; fax: 562-627-5210; email: 
[email protected].

SUPPLEMENTARY INFORMATION: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 to supersede AD 2007-26-04, Amendment 39-15306 (72 FR 71216, 
December 17, 2007) (``AD 2007-26-04''). AD 2007-26-04 applied to 
certain Boeing Model 737-100, -200, -200C, -300, -400, and -500 series 
airplanes. The NPRM published in the Federal Register on October 20, 
2016 (81 FR 72554) (``the NPRM''). The NPRM was prompted by an 
evaluation by the DAH indicating that the forward skin panel at the 
station (STA) 259.5 circumferential butt splice between stringers 19L 
and 24L is subject to WFD. The NPRM proposed to continue to require 
repetitive inspections for cracking around the heads of the fasteners 
on the forward fastener row in certain areas of a certain 
circumferential butt splice, and repair if necessary. The NPRM also 
proposed to add repetitive inspections of the skin for cracking at the 
aft fastener column, and a one-time inspection for defects in the 
production countersunk rivets, and corrective actions if necessary; and 
add an optional skin trim-out repair, which would terminate certain 
inspections. We are issuing this AD to prevent cracking of the STA 
259.5 circumferential butt splice, which could result in loss of 
structural integrity of the fuselage skin and possible loss of cabin 
pressure.

Comments

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

Request To Revise Terminating Action

    Southwest Airlines (SWA) requested that we revise paragraph (i) of 
the proposed AD to specify that doing the optional repairs terminates 
the initial and repetitive inspections instead of just the repetitive 
inspections. SWA stated that if a terminating repair were installed 
prior to the initial inspection, there is no justification for either 
the initial or repetitive inspections.
    We agree with SWA's request. We have revised paragraph (i) of this 
AD to specify that the terminating repairs are applicable to both the 
initial and repetitive inspections.

Effect of Winglets on Accomplishment of the Proposed Actions

    Aviation Partners Boeing stated that accomplishing the supplemental 
type certificate (STC) ST01219SE does not affect the actions specified 
in the NPRM.
    We concur with the commenter. We have redesignated paragraph (c) of 
the proposed AD as paragraph (c)(1) of this AD and added paragraph 
(c)(2) to this AD to state that installation of STC ST01219SE does not 
affect the ability to accomplish the actions required by this AD. 
Therefore, for airplanes on which STC ST01219SE is installed, a 
``change in product'' alternative method of compliance (AMOC) approval 
request is not necessary to comply with the requirements of 14 CFR 
39.17.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this AD with the changes described previously, and minor editorial 
changes. We have determined that these minor changes:

[[Page 27978]]

     Are consistent with the intent that was proposed in the 
NPRM for correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.
    We also determined that these changes will not increase the 
economic burden on any operator or increase the scope of this AD.

Related Service Information Under 1 CFR Part 51

    We reviewed Boeing Alert Service Bulletin 737-53A1267, Revision 1, 
dated March 8, 2016 (``ASB 737-53A1267, R1''). The service information 
describes procedures for detailed inspections and high frequency eddy 
current (HFEC) surface inspections of the skin around the fastener 
heads for any crack on the forward and aft fastener columns, left and 
right sides, at STA 259.5 circumferential butt splice; a detailed 
inspection for any defect of the production countersunk rivet heads on 
both forward and aft fastener columns, left and right sides, at the STA 
259.5 circumferential butt splice; and corrective actions, including a 
skin trim-out repair and other repairs. This service information is 
reasonably available because the interested parties have access to it 
through their normal course of business or by the means identified in 
the ADDRESSES section.

Costs of Compliance

    We estimate that this AD affects 115 airplanes of U.S. registry. We 
estimate the following costs to comply with this AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                                Cost on U.S.
              Action                    Labor cost        Parts cost    Cost per product          operators
----------------------------------------------------------------------------------------------------------------
Inspections......................  28 work-hours x $85            $0  $2,380 per            $273,700 per
                                    per hour = $2,380                  inspection cycle.     inspection cycle.
                                    per inspection
                                    cycle.
----------------------------------------------------------------------------------------------------------------

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

Authority for This Rulemaking

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

Regulatory Findings

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

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by removing Airworthiness Directive (AD) 
2007-26-04, Amendment 39-15806 (72 FR 71216, December 17, 2007), and 
adding the following new AD:

2017-12-05 The Boeing Company: Amendment 39-18920; Docket No. FAA-
2016-9188; Directorate Identifier 2016-NM-102-AD.

(a) Effective Date

    This AD is effective July 25, 2017.

(b) Affected ADs

    This AD replaces AD 2007-26-04, Amendment 39-15306 (72 FR 71216, 
December 17, 2007) (``AD 2007-26-04'').

(c) Applicability

    (1) 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-
53A1267, Revision 1, dated March 8, 2016 (``ASB 737-53A1267, R1'').
    (2) Installation of Supplemental Type Certificate (STC) 
ST01219SE (http://rgl.faa.gov/Regulatory_and_Guidance_Library/
rgstc.nsf/0/ebd1cec7b301293e86257cb30045557a/$FILE/ST01219SE.pdf) 
does not affect the ability to accomplish the actions required by 
this AD. Therefore, for airplanes on which STC ST01219SE is 
installed, a ``change in product'' alternative method of compliance 
(AMOC) approval request is not necessary to comply with the 
requirements of 14 CFR 39.17.

(d) Subject

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

(e) Unsafe Condition

    This AD was prompted by an evaluation by the design approval 
holder indicating that the forward skin panel at the station (STA) 
259.5 circumferential butt splice between stringers 19L and 24L is 
subject to widespread fatigue damage. We are issuing this AD to 
prevent cracking of the STA 259.5 circumferential butt splice, which 
could result in loss of structural integrity of the fuselage skin 
and possible loss of cabin pressure.

(f) Compliance

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

[[Page 27979]]

(g) Actions for Group 2 Airplanes

    For airplanes identified as Group 2 in ASB 737-53A1267, R1: 
Within 120 days after the effective date of this AD, inspect the 
airplane and do all applicable corrective actions using a method 
approved in accordance with the procedures specified in paragraph 
(k) of this AD.

(h) Inspections for Group 1 Airplanes

    For airplanes identified as Group 1 in ASB 737-53A1267, R1: 
Except as specified in paragraph (j)(1) of this AD, at the 
applicable time specified in paragraph 1.E. ``Compliance'' of ASB 
737-53A1267, R1, do the applicable actions specified in paragraphs 
(h)(1) and (h)(2) of this AD; and do all applicable corrective 
actions; in accordance with the Accomplishment Instructions of ASB 
737-53A1267, R1, except as specified in paragraph (j)(2) of this AD 
and as provided by paragraph (i) of this AD. Do all applicable 
corrective actions before further flight. Repeat the applicable 
inspections specified in paragraph (h)(1) of this AD thereafter at 
the applicable intervals specified paragraph 1.E., ``Compliance,'' 
of ASB 737-53A1267, R1, except as provided by paragraph (i) of this 
AD.
    (1) Do detailed inspections and high frequency eddy current 
(HFEC) surface inspections of the skin around the fastener heads for 
any crack on the forward and aft fastener columns, left and right 
sides, at STA 259.5 circumferential butt splice, in accordance with 
Parts 1, 2, 6, 7, 8, and 9 of the Accomplishment Instructions of ASB 
737-53A1267, R1, as applicable.
    (2) Do a one-time detailed inspection for any defect of the 
production countersunk rivet heads on both forward and aft fastener 
columns, left and right sides, at STA 259.5 circumferential butt 
splice, in accordance with Part 3 of the Accomplishment Instructions 
of ASB 737-53A1267, R1.

(i) Repairs That Terminate Inspections in Repair Areas

    (1) For airplanes identified as Group 1, Configuration 1, in ASB 
737-53A1267, R1: Doing the skin trim-out repair specified in Part 5 
of the Accomplishment Instructions of ASB 737-53A1267, R1, 
terminates the initial and repetitive inspections required by 
paragraph (h) of this AD that are specified in Part 1 of the 
Accomplishment Instructions of ASB 737-53A1267, R1, only; all other 
inspections required by paragraph (h) of this AD must be done, 
except as provided by paragraph (i)(2) of this AD.
    (2) For airplanes identified as Group 1, Configuration 1 in ASB 
737-53A1267, R1: Doing the skin repair specified in Part 4 of the 
Accomplishment Instructions of ASB 737-53A1267, R1, terminates the 
initial and repetitive inspections required by paragraph (h) of this 
AD that are specified in Part 1 and Part 2 of the Accomplishment 
Instructions of ASB 737-53A1267, R1, for the repaired area only; all 
other inspections required by paragraph (h) of this AD must be done, 
except as provided by paragraph (i)(1) of this AD.

(j) Exceptions to Service Information

    (1) Where paragraph 1.E., ``Compliance,'' of ASB 737-53A1267, 
R1, specifies a compliance time ``after the Revision 1 date of this 
service bulletin,'' this AD requires compliance within the specified 
compliance time after the effective date of this AD.
    (2) Although ASB 737-53A1267, R1, specifies to contact Boeing 
for appropriate action, and specifies that action as ``RC'' 
(Required for Compliance), this AD requires repair before further 
flight using a method approved in accordance with the procedures 
specified in paragraph (k) of this AD.

(k) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, Los Angeles 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 (l) of this AD. 
Information may be emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.
    (3) An AMOC that provides an acceptable level of safety may be 
used for any repair, modification, or alteration required by this AD 
if it is approved by the Boeing Commercial Airplanes Organization 
Designation Authorization (ODA) that has been authorized by the 
Manager, Los Angeles ACO, to make those findings. To be approved, 
the repair method, modification deviation, or alteration deviation 
must meet the certification basis of the airplane and the approval 
must specifically refer to this AD.
    (4) AMOCs approved previously for AD 2007-26-04 are approved as 
AMOCs for the corresponding provisions of this AD.
    (5) Except as required by paragraph (j)(2) of this AD: For 
service information that contains steps that are labeled as RC, the 
provisions of paragraphs (k)(5)(i) and (k)(5)(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.

(l) Related Information

    For more information about this AD, contact Jennifer 
Tsakoumakis, Aerospace Engineer, Airframe Branch, ANM-120L, FAA, Los 
Angeles ACO, 3960 Paramount Boulevard, Lakewood, CA 90712-4137; 
phone: 562-627-5264; fax: 562-627-5210; email: 
[email protected].

(m) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference (IBR) of the service information listed 
in this paragraph under 5 U.S.C. 552(a) and 1 CFR part 51.
    (2) You must use this service information as applicable to do 
the actions required by this AD, unless the AD specifies otherwise.
    (i) Boeing Alert Service Bulletin 737-53A1267, Revision 1, dated 
March 8, 2016.
    (ii) Reserved.
    (3) For service information identified in this AD, contact 
Boeing Commercial Airplanes, Attention: Contractual & Data Services 
(C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-
5600; telephone 562-797-1717; Internet https://www.myboeingfleet.com.
    (4) You may view this service information at the FAA, Transport 
Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For 
information on the availability of this material at the FAA, call 
425-227-1221.
    (5) You may view this service information that is incorporated 
by reference at the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, call 202-741-6030, or go to: http://www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued in Renton, Washington, on June 2, 2017.
Michael Kaszycki,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2017-12175 Filed 6-19-17; 8:45 am]
BILLING CODE 4910-13-P

Federal Register / Vol. 82, No. 117 / Tuesday, June 20, 2017 / Rules and Regulations 27977 (5) You may view this service information Attention: Contractual & Data Services repair if necessary. The NPRM also that is incorporated by reference at the (C&DS), 2600 Westminster Blvd., MC proposed to add repetitive inspections National Archives and Records 110–SK57, Seal Beach, CA 90740–5600; of the skin for cracking at the aft Administration (NARA). For information on telephone 562–797–1717; Internet fastener column, and a one-time the availability of this material at NARA, call 202–741–6030, or go to: http:// https://www.myboeingfleet.com. You inspection for defects in the production www.archives.gov/federal-register/cfr/ibr- may view this referenced service countersunk rivets, and corrective locations.html. information at the FAA, Transport actions if necessary; and add an Airplane Directorate, 1601 Lind Avenue optional skin trim-out repair, which Issued in Renton, Washington, on June 7, 2017. SW., Renton, WA. For information on would terminate certain inspections. We the availability of this material at the are issuing this AD to prevent cracking Michael Kaszycki, FAA, call 425–227–1221. It is also of the STA 259.5 circumferential butt Acting Manager, Transport Airplane available on the Internet at http:// splice, which could result in loss of Directorate, Aircraft Certification Service. www.regulations.gov by searching for structural integrity of the fuselage skin [FR Doc. 2017–12396 Filed 6–19–17; 8:45 am] and locating Docket No. FAA–2016– and possible loss of cabin pressure. BILLING CODE 4910–13–P 9188. Comments Examining the AD Docket We gave the public the opportunity to DEPARTMENT OF TRANSPORTATION You may examine the AD docket on participate in developing this AD. The the Internet at http:// following presents the comments Federal Aviation Administration www.regulations.gov by searching for received on the NPRM and the FAA’s and locating Docket No. FAA–2016– response to each comment. 14 CFR Part 39 9188; or in person at the Docket [Docket No. FAA–2016–9188; Directorate Management Facility between 9 a.m. Request To Revise Terminating Action Identifier 2016–NM–102–AD; Amendment and 5 p.m., Monday through Friday, Southwest Airlines (SWA) requested 39–18920; AD 2017–12–05] except Federal holidays. The AD docket that we revise paragraph (i) of the RIN 2120–AA64 contains this AD, the regulatory proposed AD to specify that doing the evaluation, any comments received, and optional repairs terminates the initial Airworthiness Directives; The Boeing other information. The address for the and repetitive inspections instead of just Company Airplanes Docket Office (phone: 800–647–5527) is the repetitive inspections. SWA stated Docket Management Facility, U.S. that if a terminating repair were AGENCY: Federal Aviation Department of Transportation, Docket installed prior to the initial inspection, Administration (FAA), DOT. Operations, M–30, West Building there is no justification for either the ACTION: Final rule. Ground Floor, Room W12–140, 1200 initial or repetitive inspections. New Jersey Avenue SE., Washington, We agree with SWA’s request. We SUMMARY: We are superseding DC 20590. have revised paragraph (i) of this AD to Airworthiness Directive (AD) 2007–26– FOR FURTHER INFORMATION CONTACT: specify that the terminating repairs are 04 for certain The Boeing Company Jennifer Tsakoumakis, Aerospace applicable to both the initial and Model 737–100, –200, –200C, –300, Engineer, Airframe Branch, ANM–120L, repetitive inspections. –400, and –500 series airplanes. AD FAA, Los Angeles Aircraft Certification 2007–26–04 required repetitive Office (ACO), 3960 Paramount Effect of Winglets on Accomplishment inspections for cracking of certain Boulevard, Lakewood, CA 90712–4137; of the Proposed Actions fasteners, and repair if necessary; and a phone: 562–627–5264; fax: 562–627– Aviation Partners Boeing stated that preventive modification, which 5210; email: jennifer.tsakoumakis@ accomplishing the supplemental type terminated the repetitive inspections. faa.gov. certificate (STC) ST01219SE does not This AD removes the mandatory SUPPLEMENTARY INFORMATION: affect the actions specified in the modification; adds repetitive NPRM. inspections of the skin for cracking, a Discussion one-time inspection for defects of the We concur with the commenter. We production countersunk rivets, and We issued a notice of proposed have redesignated paragraph (c) of the corrective actions if necessary; and adds rulemaking (NPRM) to amend 14 CFR proposed AD as paragraph (c)(1) of this an optional skin trim-out repair, which part 39 to supersede AD 2007–26–04, AD and added paragraph (c)(2) to this will terminate certain inspections. This Amendment 39–15306 (72 FR 71216, AD to state that installation of STC AD was prompted by an evaluation by December 17, 2007) (‘‘AD 2007–26– ST01219SE does not affect the ability to the design approval holder (DAH) 04’’). AD 2007–26–04 applied to certain accomplish the actions required by this indicating that certain skin panels are Boeing Model 737–100, –200, –200C, AD. Therefore, for airplanes on which subject to widespread fatigue damage –300, –400, and –500 series airplanes. STC ST01219SE is installed, a ‘‘change (WFD). We are issuing this AD to The NPRM published in the Federal in product’’ alternative method of address the unsafe condition on these Register on October 20, 2016 (81 FR compliance (AMOC) approval request is products. 72554) (‘‘the NPRM’’). The NPRM was not necessary to comply with the prompted by an evaluation by the DAH requirements of 14 CFR 39.17. DATES: This AD is effective July 25, indicating that the forward skin panel at Conclusion asabaliauskas on DSKBBXCHB2PROD with RULES 2017. the station (STA) 259.5 circumferential The Director of the Federal Register butt splice between stringers 19L and We reviewed the relevant data, approved the incorporation by reference 24L is subject to WFD. The NPRM considered the comments received, and of a certain publication listed in this AD proposed to continue to require determined that air safety and the as of July 25, 2017. repetitive inspections for cracking public interest require adopting this AD ADDRESSES: For service information around the heads of the fasteners on the with the changes described previously, identified in this final rule, contact forward fastener row in certain areas of and minor editorial changes. We have Boeing Commercial Airplanes, a certain circumferential butt splice, and determined that these minor changes: VerDate Sep<11>2014 16:57 Jun 19, 2017 Jkt 241001 PO 00000 Frm 00011 Fmt 4700 Sfmt 4700 E:\FR\FM\20JNR1.SGM 20JNR1

27978 Federal Register / Vol. 82, No. 117 / Tuesday, June 20, 2017 / Rules and Regulations • Are consistent with the intent that dated March 8, 2016 (‘‘ASB 737– corrective actions, including a skin trim- was proposed in the NPRM for 53A1267, R1’’). The service information out repair and other repairs. This correcting the unsafe condition; and describes procedures for detailed service information is reasonably • Do not add any additional burden inspections and high frequency eddy available because the interested parties upon the public than was already current (HFEC) surface inspections of have access to it through their normal proposed in the NPRM. the skin around the fastener heads for course of business or by the means We also determined that these any crack on the forward and aft identified in the ADDRESSES section. changes will not increase the economic fastener columns, left and right sides, at burden on any operator or increase the Costs of Compliance STA 259.5 circumferential butt splice; a scope of this AD. detailed inspection for any defect of the We estimate that this AD affects 115 Related Service Information Under 1 production countersunk rivet heads on airplanes of U.S. registry. We estimate CFR Part 51 both forward and aft fastener columns, the following costs to comply with this We reviewed Boeing Alert Service left and right sides, at the STA 259.5 AD: Bulletin 737–53A1267, Revision 1, circumferential butt splice; and ESTIMATED COSTS Cost per Cost on U.S. Action Labor cost Parts cost product operators Inspections ..................... 28 work-hours × $85 per hour = $2,380 per in- $0 $2,380 per inspection $273,700 per inspection spection cycle. cycle. cycle. We have received no definitive data For the reasons discussed above, I (a) Effective Date that would enable us to provide cost certify that this AD: This AD is effective July 25, 2017. estimates for the optional skin-trim-out (1) Is not a ‘‘significant regulatory (b) Affected ADs repair specified in this AD. action’’ under Executive Order 12866, This AD replaces AD 2007–26–04, We have received no definitive data (2) Is not a ‘‘significant rule’’ under Amendment 39–15306 (72 FR 71216, that would enable us to provide cost DOT Regulatory Policies and Procedures December 17, 2007) (‘‘AD 2007–26–04’’). estimates for the on-condition actions (44 FR 11034, February 26, 1979), specified in this AD. (c) Applicability (3) Will not affect intrastate aviation (1) This AD applies to The Boeing Authority for This Rulemaking in Alaska, and Company Model 737–100, –200, –200C, Title 49 of the United States Code (4) Will not have a significant –300, –400, and –500 series airplanes, economic impact, positive or negative, certificated in any category, as identified in specifies the FAA’s authority to issue Boeing Alert Service Bulletin 737–53A1267, rules on aviation safety. Subtitle I, on a substantial number of small entities under the criteria of the Regulatory Revision 1, dated March 8, 2016 (‘‘ASB 737– Section 106, describes the authority of 53A1267, R1’’). the FAA Administrator. Subtitle VII, Flexibility Act. (2) Installation of Supplemental Type Aviation Programs, describes in more List of Subjects in 14 CFR Part 39 Certificate (STC) ST01219SE (http:// detail the scope of the Agency’s rgl.faa.gov/Regulatory_and_Guidance_ authority. Air transportation, Aircraft, Aviation Library/rgstc.nsf/0/ebd1cec7b301293e86257 safety, Incorporation by reference, cb30045557a/$FILE/ST01219SE.pdf) does We are issuing this rulemaking under not affect the ability to accomplish the the authority described in Subtitle VII, Safety. actions required by this AD. Therefore, for Part A, Subpart III, Section 44701, Adoption of the Amendment airplanes on which STC ST01219SE is ‘‘General requirements.’’ Under that installed, a ‘‘change in product’’ alternative section, Congress charges the FAA with Accordingly, under the authority method of compliance (AMOC) approval promoting safe flight of civil aircraft in delegated to me by the Administrator, request is not necessary to comply with the air commerce by prescribing regulations the FAA amends 14 CFR part 39 as requirements of 14 CFR 39.17. for practices, methods, and procedures follows: (d) Subject the Administrator finds necessary for Air Transport Association (ATA) of PART 39—AIRWORTHINESS safety in air commerce. This regulation America Code 53, Fuselage. DIRECTIVES is within the scope of that authority (e) Unsafe Condition because it addresses an unsafe condition ■ 1. The authority citation for part 39 This AD was prompted by an evaluation by that is likely to exist or develop on continues to read as follows: the design approval holder indicating that products identified in this rulemaking Authority: 49 U.S.C. 106(g), 40113, 44701. the forward skin panel at the station (STA) action. 259.5 circumferential butt splice between Regulatory Findings § 39.13 [Amended] stringers 19L and 24L is subject to widespread fatigue damage. We are issuing We have determined that this AD will ■ 2. The FAA amends § 39.13 by this AD to prevent cracking of the STA 259.5 asabaliauskas on DSKBBXCHB2PROD with RULES not have federalism implications under removing Airworthiness Directive (AD) circumferential butt splice, which could Executive Order 13132. This AD will 2007–26–04, Amendment 39–15806 (72 result in loss of structural integrity of the not have a substantial direct effect on FR 71216, December 17, 2007), and fuselage skin and possible loss of cabin the States, on the relationship between adding the following new AD: pressure. the national government and the States, 2017–12–05 The Boeing Company: (f) Compliance or on the distribution of power and Amendment 39–18920; Docket No. Comply with this AD within the responsibilities among the various FAA–2016–9188; Directorate Identifier compliance times specified, unless already levels of government. 2016–NM–102–AD. done. VerDate Sep<11>2014 16:57 Jun 19, 2017 Jkt 241001 PO 00000 Frm 00012 Fmt 4700 Sfmt 4700 E:\FR\FM\20JNR1.SGM 20JNR1

Federal Register / Vol. 82, No. 117 / Tuesday, June 20, 2017 / Rules and Regulations 27979 (g) Actions for Group 2 Airplanes compliance time ‘‘after the Revision 1 date of phone: 562–627–5264; fax: 562–627–5210; For airplanes identified as Group 2 in ASB this service bulletin,’’ this AD requires email: jennifer.tsakoumakis@faa.gov. 737–53A1267, R1: Within 120 days after the compliance within the specified compliance (m) Material Incorporated by Reference effective date of this AD, inspect the airplane time after the effective date of this AD. and do all applicable corrective actions using (2) Although ASB 737–53A1267, R1, (1) The Director of the Federal Register a method approved in accordance with the specifies to contact Boeing for appropriate approved the incorporation by reference procedures specified in paragraph (k) of this action, and specifies that action as ‘‘RC’’ (IBR) of the service information listed in this AD. (Required for Compliance), this AD requires paragraph under 5 U.S.C. 552(a) and 1 CFR repair before further flight using a method part 51. (h) Inspections for Group 1 Airplanes approved in accordance with the procedures (2) You must use this service information For airplanes identified as Group 1 in ASB specified in paragraph (k) of this AD. as applicable to do the actions required by 737–53A1267, R1: Except as specified in this AD, unless the AD specifies otherwise. paragraph (j)(1) of this AD, at the applicable (k) Alternative Methods of Compliance (i) Boeing Alert Service Bulletin 737– time specified in paragraph 1.E. (AMOCs) 53A1267, Revision 1, dated March 8, 2016. ‘‘Compliance’’ of ASB 737–53A1267, R1, do (1) The Manager, Los Angeles Aircraft (ii) Reserved. the applicable actions specified in Certification Office (ACO), FAA, has the (3) For service information identified in paragraphs (h)(1) and (h)(2) of this AD; and authority to approve AMOCs for this AD, if this AD, contact Boeing Commercial do all applicable corrective actions; in requested using the procedures found in 14 Airplanes, Attention: Contractual & Data accordance with the Accomplishment CFR 39.19. In accordance with 14 CFR 39.19, Services (C&DS), 2600 Westminster Blvd., Instructions of ASB 737–53A1267, R1, except send your request to your principal inspector MC 110–SK57, Seal Beach, CA 90740–5600; as specified in paragraph (j)(2) of this AD and or local Flight Standards District Office, as telephone 562–797–1717; Internet https:// as provided by paragraph (i) of this AD. Do appropriate. If sending information directly www.myboeingfleet.com. all applicable corrective actions before to the manager of the ACO, send it to the (4) You may view this service information further flight. Repeat the applicable attention of the person identified in at the FAA, Transport Airplane Directorate, inspections specified in paragraph (h)(1) of paragraph (l) of this AD. Information may be 1601 Lind Avenue SW., Renton, WA. For this AD thereafter at the applicable intervals emailed to: 9-ANM-LAACO-ACO-AMOC- information on the availability of this specified paragraph 1.E., ‘‘Compliance,’’ of Requests@faa.gov. material at the FAA, call 425–227–1221. ASB 737–53A1267, R1, except as provided (2) Before using any approved AMOC, (5) You may view this service information by paragraph (i) of this AD. notify your appropriate principal inspector, that is incorporated by reference at the (1) Do detailed inspections and high or lacking a principal inspector, the manager National Archives and Records frequency eddy current (HFEC) surface of the local flight standards district office/ Administration (NARA). For information on inspections of the skin around the fastener certificate holding district office. the availability of this material at NARA, call heads for any crack on the forward and aft (3) An AMOC that provides an acceptable 202–741–6030, or go to: http:// fastener columns, left and right sides, at STA level of safety may be used for any repair, www.archives.gov/federal-register/cfr/ibr- 259.5 circumferential butt splice, in modification, or alteration required by this locations.html. accordance with Parts 1, 2, 6, 7, 8, and 9 of AD if it is approved by the Boeing the Accomplishment Instructions of ASB Issued in Renton, Washington, on June 2, Commercial Airplanes Organization 2017. 737–53A1267, R1, as applicable. Designation Authorization (ODA) that has (2) Do a one-time detailed inspection for Michael Kaszycki, been authorized by the Manager, Los Angeles any defect of the production countersunk Acting Manager, Transport Airplane ACO, to make those findings. To be rivet heads on both forward and aft fastener Directorate, Aircraft Certification Service. approved, the repair method, modification columns, left and right sides, at STA 259.5 deviation, or alteration deviation must meet [FR Doc. 2017–12175 Filed 6–19–17; 8:45 am] circumferential butt splice, in accordance the certification basis of the airplane and the BILLING CODE 4910–13–P with Part 3 of the Accomplishment approval must specifically refer to this AD. Instructions of ASB 737–53A1267, R1. (4) AMOCs approved previously for AD (i) Repairs That Terminate Inspections in 2007–26–04 are approved as AMOCs for the DEPARTMENT OF TRANSPORTATION Repair Areas corresponding provisions of this AD. (1) For airplanes identified as Group 1, (5) Except as required by paragraph (j)(2) Federal Aviation Administration Configuration 1, in ASB 737–53A1267, R1: of this AD: For service information that Doing the skin trim-out repair specified in contains steps that are labeled as RC, the provisions of paragraphs (k)(5)(i) and 14 CFR Part 39 Part 5 of the Accomplishment Instructions of ASB 737–53A1267, R1, terminates the initial (k)(5)(ii) of this AD apply. [Docket No. FAA–2016–9574; Directorate and repetitive inspections required by (i) The steps labeled as RC, including Identifier 2016–NM–063–AD; Amendment paragraph (h) of this AD that are specified in substeps under an RC step and any figures 39–18921; AD 2017–12–06] Part 1 of the Accomplishment Instructions of identified in an RC step, must be done to ASB 737–53A1267, R1, only; all other comply with the AD. If a step or substep is RIN 2120–AA64 inspections required by paragraph (h) of this labeled ‘‘RC Exempt,’’ then the RC AD must be done, except as provided by requirement is removed from that step or Airworthiness Directives; Airbus paragraph (i)(2) of this AD. substep. An AMOC is required for any Airplanes (2) For airplanes identified as Group 1, deviations to RC steps, including substeps and identified figures. AGENCY: Federal Aviation Configuration 1 in ASB 737–53A1267, R1: Doing the skin repair specified in Part 4 of (ii) Steps not labeled as RC may be Administration (FAA), Department of the Accomplishment Instructions of ASB deviated from using accepted methods in Transportation (DOT). 737–53A1267, R1, terminates the initial and accordance with the operator’s maintenance ACTION: Final rule. repetitive inspections required by paragraph or inspection program without obtaining (h) of this AD that are specified in Part 1 and approval of an AMOC, provided the RC steps, SUMMARY: We are adopting a new Part 2 of the Accomplishment Instructions of including substeps and identified figures, can airworthiness directive (AD) for all asabaliauskas on DSKBBXCHB2PROD with RULES ASB 737–53A1267, R1, for the repaired area still be done as specified, and the airplane Airbus Model A300 series airplanes; only; all other inspections required by can be put back in an airworthy condition. Model A300 B4–600, B4–600R, and F4– paragraph (h) of this AD must be done, 600R series airplanes, and Model A300 (l) Related Information except as provided by paragraph (i)(1) of this C4–605R Variant F airplanes AD. For more information about this AD, contact Jennifer Tsakoumakis, Aerospace (collectively called Model A300–600 (j) Exceptions to Service Information Engineer, Airframe Branch, ANM–120L, series airplanes); and Model A310 series (1) Where paragraph 1.E., ‘‘Compliance,’’ of FAA, Los Angeles ACO, 3960 Paramount airplanes. This AD is intended to ASB 737–53A1267, R1, specifies a Boulevard, Lakewood, CA 90712–4137; complete certain mandated programs VerDate Sep<11>2014 16:57 Jun 19, 2017 Jkt 241001 PO 00000 Frm 00013 Fmt 4700 Sfmt 4700 E:\FR\FM\20JNR1.SGM 20JNR1


Document Created: 2017-06-20 02:20:31
Document Modified: 2017-06-20 02:20:31
CategoryRegulatory Information
CollectionFederal Register
sudoc ClassAE 2.7:
GS 4.107:
AE 2.106:
PublisherOffice of the Federal Register, National Archives and Records Administration
SectionRules and Regulations
ActionFinal rule.
DatesThis AD is effective July 25, 2017.
ContactJennifer Tsakoumakis, Aerospace Engineer, Airframe Branch, ANM-120L, FAA, Los Angeles Aircraft Certification Office (ACO), 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627-5264; fax: 562-627-5210; email: [email protected]
FR Citation82 FR 27977 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety
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