83_FR_49104 83 FR 48915 - Airworthiness Directives; The Boeing Company Airplanes

83 FR 48915 - Airworthiness Directives; The Boeing Company Airplanes

DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration

Federal Register Volume 83, Issue 189 (September 28, 2018)

Page Range48915-48917
FR Document2018-20917

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

Federal Register, Volume 83 Issue 189 (Friday, September 28, 2018)
[Federal Register Volume 83, Number 189 (Friday, September 28, 2018)]
[Rules and Regulations]
[Pages 48915-48917]
From the Federal Register Online  [www.thefederalregister.org]
[FR Doc No: 2018-20917]


=======================================================================
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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2018-0452; Product Identifier 2017-NM-150-AD; Amendment 
39-19439; AD 2018-20-05]
RIN 2120-AA64


Airworthiness Directives; The Boeing Company Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

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

DATES: This AD is effective November 2, 2018.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of November 2, 
2018.

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 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.

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 Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this final rule, the regulatory evaluation, any comments received, and 
other information. The address for Docket Operations (phone: 800-647-
5527) is Docket Operations, 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: 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: 

Discussion

    We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR 
part 39 by adding an AD that would apply to all The Boeing Company 
Model 727C, 727-100, 727-100C, 727-200, and 727-200F series airplanes. 
The NPRM published in the Federal Register on May 29, 2018 (83 FR 
24433). The NPRM was prompted by the results of a fleet survey on 
retired Model 737 airplanes, which revealed cracking in bulkhead frame 
webs at a certain body station. No cracks have been reported on Model 
727 airplanes but Model 727 and Model 737 airplanes have a similar 
frame installation at station 259.5. The NPRM proposed to require 
repetitive inspections of the bulkhead frame web at a certain body 
station and applicable on-condition actions.

[[Page 48916]]

    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.

Comments

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

Support for the NPRM

    Boeing concurred with the NPRM.

Request To Specify Repetitive Inspection Interval

    The commenter, Lynise Hogue, indicated that the reports mentioned 
in the Discussion section of the NPRM revealed cracking in the bulkhead 
frame of retired Boeing Model 737 airplanes but there was no evidence 
of cracking in the bulkhead frame of Boeing Model 727 airplanes, 
despite those airplanes having a similar frame installation. The 
commenter stated this posed concerns and asked how often would ``. . . 
said repetitive inspections be conducted?''
    We infer the commenter is asking about the repetitive inspections 
required by this AD and agree to clarify the inspection interval. As 
stated in paragraph (g) of this AD inspections are done at the 
applicable times specified in the ``Compliance'' paragraph of Boeing 
Alert Requirements Bulletin 727-53A0235 RB, dated October 12, 2017, 
which is at intervals not to exceed 8,600 flight cycles. We have 
determined that these intervals and inspections are adequate to address 
the unsafe condition. This AD has not been changed in this regard.

Request To Clarify Unsafe Condition

    The commenter, Lynise Hogue, inquired if the unsafe product was 
confined to a certain batch or if it is an overall poor product. The 
commenter further questioned that if it is indeed an overall poor 
product, what measures other than an annual inspection are being taken 
to prevent cracking in additional bulkhead frames.
    We agree to clarify. Airplane maintenance and inspection programs 
include many types of inspections, which are designed to detect and 
address potential unsafe conditions. However, when those inspections 
are not adequate to prevent an unsafe condition, we issue an AD to 
address the identified unsafe condition, such as this one. We are 
currently not planning additional rulemaking on other bulkhead frames. 
However, as we obtain and analyze additional data, we might consider 
further rulemaking. This AD has not been changed in this regard.

Request To Expand Applicability to All Boeing Airplanes

    The commenter, Lynise Hogue, requested that we change the 
applicability to all Boeing airplanes because the proposed AD addresses 
``an unsafe condition that is likely to exist or develop on products 
identified in this rulemaking action.'' The commenter provided no 
further justification for the request.
    We do not agree with the commenter's request to change the 
applicability of this AD. The commenter has not provided any additional 
data, views, or arguments to support this request. Furthermore, such a 
change would expand the scope of this AD and therefore require 
additional public review and delay issuance of this final rule. This AD 
applies only to those airplanes affected by the identified unsafe 
condition. We are currently not planning additional rulemaking for 
other airplanes. However, as we obtain and analyze additional data, we 
might consider further rulemaking. We have not changed this AD in this 
regard.

Conclusion

    We reviewed the relevant data, considered the comments received, 
and determined that air safety and the public interest require adopting 
this final rule as proposed, except for minor editorial changes. We 
have determined that these minor changes:
     Are consistent with the intent that was proposed in the 
NPRM for addressing the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.

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 station 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.

Costs of Compliance

    We estimate that this AD affects 106 airplanes of U.S. registry. We 
estimate the following costs to comply with this 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            $0  $3,485 per            $369,410 per
                                    per hour = $3,485                  inspection cycle.     inspection cycle.
                                    per inspection
                                    cycle.
----------------------------------------------------------------------------------------------------------------

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

[[Page 48917]]

Division, but during this transition period, the Executive Director has 
delegated the authority to issue ADs applicable to transport category 
airplanes and associated appliances to the Director of the System 
Oversight Division.

Regulatory Findings

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

List of Subjects in 14 CFR Part 39

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

Adoption of the Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13  [Amended]

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

2018-20-05 The Boeing Company: Amendment 39-19439; Docket No. FAA-
2018-0452; Product Identifier 2017-NM-150-AD.

(a) Effective Date

    This AD is effective November 2, 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 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) 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

    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].

(l) 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 Requirements Bulletin 727-53A0235 RB, dated 
October 12, 2017.
    (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 
Standards Branch, 2200 South 216th St., Des Moines, WA. For 
information on the availability of this material at the FAA, call 
206-231-3195.
    (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 Des Moines, Washington, on September 13, 2018.
Michael Kaszycki,
Acting Director, System Oversight Division, Aircraft Certification 
Service.
[FR Doc. 2018-20917 Filed 9-27-18; 8:45 am]
 BILLING CODE 4910-13-P



                                                              Federal Register / Vol. 83, No. 189 / Friday, September 28, 2018 / Rules and Regulations                                       48915

                                             interest in the concern, provides critical              circumstances.’’ The only circumstances               of a certain publication listed in this AD
                                             financial or bonding support.                           in which this exception applies are                   as of November 2, 2018.
                                                (6) In circumstances where a critical                those articulated in the definition.                  ADDRESSES: For service information
                                             license is held by a non-service-disabled                  (n) Exception for active duty.                     identified in this final rule, contact
                                             individual, or other entity, the non-                   Notwithstanding the provisions of this                Boeing Commercial Airplanes,
                                             service-disabled individual or entity                   section requiring a service-disabled                  Attention: Contractual & Data Services
                                             may be found to control the firm. A                     veteran to control the daily business                 (C&DS), 2600 Westminster Blvd., MC
                                             critical license is considered any license              operations and long-term strategic                    110–SK57, Seal Beach, CA 90740–5600;
                                             that would normally be required of                      planning of a concern, where a service-               telephone 562–797–1717; internet
                                             firms operating in the same field or                    disabled veteran individual upon whom                 https://www.myboeingfleet.com. You
                                             industry, regardless of whether a                       eligibility is based is a reserve                     may view this service information at the
                                             specific license is required on a specific              component member in the United States                 FAA, Transport Standards Branch, 2200
                                             contract.                                               military who has been called to active                South 216th St., Des Moines, WA. For
                                                (7) Business relationships exist with                duty, the concern may elect to designate              information on the availability of this
                                             non-service-disabled veteran                            in writing one or more individuals to                 material at the FAA, call 206–231–3195.
                                             individuals or entities which cause such                control the concern on behalf of the                  It is also available on the internet at
                                             dependence that the applicant or                        service-disabled veteran during the                   http://www.regulations.gov by searching
                                             concern cannot exercise independent                     period of active duty. The concern will               for and locating Docket No. FAA–2018–
                                             business judgment without great                         not be considered ineligible based on                 0452.
                                             economic risk.                                          the absence of the service-disabled
                                                (j) Critical financing. A non-service-               veteran during the period of active duty.             Examining the AD Docket
                                             disabled veteran individual or entity                   The concern must keep records                           You may examine the AD docket on
                                             may be found to control the concern                     evidencing the active duty and the                    the internet at http://
                                             through loan arrangements with the                      written designation of control, and                   www.regulations.gov by searching for
                                             concern or the service-disabled                         provide those documents to VA, and if                 and locating Docket No. FAA–2018–
                                             veteran(s). Providing a loan or a loan                  requested to SBA.                                     0452; or in person at Docket Operations
                                             guaranty on commercially reasonable
                                                                                                       Dated: September 21, 2018.                          between 9 a.m. and 5 p.m., Monday
                                             terms does not, by itself, give a non-
                                                                                                     Linda E. McMahon,                                     through Friday, except Federal holidays.
                                             service-disabled veteran individual or
                                                                                                     Administrator.                                        The AD docket contains this final rule,
                                             entity the power to control a firm, but
                                                                                                                                                           the regulatory evaluation, any
                                             when taken into consideration with                      [FR Doc. 2018–21112 Filed 9–27–18; 8:45 am]
                                                                                                                                                           comments received, and other
                                             other factors may be used to find that a                BILLING CODE 8025–01–P
                                                                                                                                                           information. The address for Docket
                                             non-service-disabled firm or individual
                                             controls the concern.                                                                                         Operations (phone: 800–647–5527) is
                                                (k) Normal business hours. There is a                                                                      Docket Operations, U.S. Department of
                                                                                                     DEPARTMENT OF TRANSPORTATION
                                             rebuttable presumption that a service-                                                                        Transportation, Docket Operations, M–
                                             disabled veteran does not control the                   Federal Aviation Administration                       30, West Building Ground Floor, Room
                                             firm when the service-disabled veteran                                                                        W12–140, 1200 New Jersey Avenue SE,
                                             is not able to work for the firm during                 14 CFR Part 39                                        Washington, DC 20590.
                                             the normal working hours that                                                                                 FOR FURTHER INFORMATION CONTACT:
                                                                                                     [Docket No. FAA–2018–0452; Product
                                             businesses in that industry normally                    Identifier 2017–NM–150–AD; Amendment
                                                                                                                                                           George Garrido, Aerospace Engineer,
                                             work. This may include, but is not                      39–19439; AD 2018–20–05]                              Airframe Section, FAA, Los Angeles
                                             limited to, other full-time or part-time                                                                      ACO Branch, 3960 Paramount
                                                                                                     RIN 2120–AA64                                         Boulevard, Lakewood, CA 90712–4137;
                                             employment, being a full-time or part-
                                             time student, or any other activity or                                                                        phone: 562–627–5232; fax: 562–627–
                                                                                                     Airworthiness Directives; The Boeing
                                             obligation that prevents the service-                                                                         5210; email: george.garrido@faa.gov.
                                                                                                     Company Airplanes
                                             disabled veteran from actively working                                                                        SUPPLEMENTARY INFORMATION:
                                             for the firm during normal business                     AGENCY:  Federal Aviation
                                                                                                     Administration (FAA), DOT.                            Discussion
                                             operating hours.
                                                (l) Close proximity. There is rebuttable             ACTION: Final rule.                                      We issued a notice of proposed
                                             presumption that a service-disabled                                                                           rulemaking (NPRM) to amend 14 CFR
                                             veteran does not control the firm if that               SUMMARY:   We are adopting a new                      part 39 by adding an AD that would
                                             individual is not located within a                      airworthiness directive (AD) for all The              apply to all The Boeing Company Model
                                             reasonable commute to firm’s                            Boeing Company Model 727C, 727–100,                   727C, 727–100, 727–100C, 727–200, and
                                             headquarters and/or job-sites locations,                727–100C, 727–200, and 727–200F                       727–200F series airplanes. The NPRM
                                             regardless of the firm’s industry. The                  series airplanes. This AD was prompted                published in the Federal Register on
                                             service-disabled veteran’s ability to                   by the results of a fleet survey, which               May 29, 2018 (83 FR 24433). The NPRM
                                             answer emails, communicate by                           revealed cracking in bulkhead frame                   was prompted by the results of a fleet
                                             telephone, or to communicate at a                       webs at a certain body station. This AD               survey on retired Model 737 airplanes,
                                             distance by other technological means,                  requires repetitive inspections of the                which revealed cracking in bulkhead
                                             while delegating the responsibility of                  bulkhead frame web at a certain body                  frame webs at a certain body station. No
                                             managing the concern to others is not by                station and applicable on-condition                   cracks have been reported on Model 727
                                                                                                     actions. We are issuing this AD to                    airplanes but Model 727 and Model 737
daltland on DSKBBV9HB2PROD with RULES




                                             itself a reasonable rebuttal.
                                                (m) Exception for ‘‘extraordinary                    address the unsafe condition on these                 airplanes have a similar frame
                                             circumstances.’’ SBA will not find that                 products.                                             installation at station 259.5. The NPRM
                                             a lack of control exists where a service-               DATES: This AD is effective November 2,               proposed to require repetitive
                                             disabled veteran does not have the                      2018.                                                 inspections of the bulkhead frame web
                                             unilateral power and authority to make                    The Director of the Federal Register                at a certain body station and applicable
                                             decisions in ‘‘extraordinary                            approved the incorporation by reference               on-condition actions.


                                        VerDate Sep<11>2014   17:35 Sep 27, 2018   Jkt 244001   PO 00000   Frm 00011   Fmt 4700   Sfmt 4700   E:\FR\FM\28SER1.SGM   28SER1


                                             48916            Federal Register / Vol. 83, No. 189 / Friday, September 28, 2018 / Rules and Regulations

                                                We are issuing this AD to address                    Request To Clarify Unsafe Condition                   airplanes affected by the identified
                                             cracking in the station 259.5 bulkhead                    The commenter, Lynise Hogue,                        unsafe condition. We are currently not
                                             frame web from the first stiffener above                inquired if the unsafe product was                    planning additional rulemaking for
                                             stringer S–10 to S–13. Such cracking                    confined to a certain batch or if it is an            other airplanes. However, as we obtain
                                             may lead to subsequent failure of the                   overall poor product. The commenter                   and analyze additional data, we might
                                             skin and cockpit window surround                        further questioned that if it is indeed an            consider further rulemaking. We have
                                             structure, and could result in rapid                    overall poor product, what measures                   not changed this AD in this regard.
                                             decompression.                                          other than an annual inspection are                   Conclusion
                                             Comments                                                being taken to prevent cracking in
                                                                                                     additional bulkhead frames.                              We reviewed the relevant data,
                                               We gave the public the opportunity to                                                                       considered the comments received, and
                                             participate in developing this final rule.                We agree to clarify. Airplane
                                                                                                     maintenance and inspection programs                   determined that air safety and the
                                             The following presents the comments                                                                           public interest require adopting this
                                             received on the NPRM and the FAA’s                      include many types of inspections,
                                                                                                     which are designed to detect and                      final rule as proposed, except for minor
                                             response to each comment.                                                                                     editorial changes. We have determined
                                                                                                     address potential unsafe conditions.
                                             Support for the NPRM                                    However, when those inspections are                   that these minor changes:
                                               Boeing concurred with the NPRM.                       not adequate to prevent an unsafe                        • Are consistent with the intent that
                                                                                                     condition, we issue an AD to address                  was proposed in the NPRM for
                                             Request To Specify Repetitive                           the identified unsafe condition, such as              addressing the unsafe condition; and
                                             Inspection Interval                                     this one. We are currently not planning                  • Do not add any additional burden
                                                The commenter, Lynise Hogue,                         additional rulemaking on other                        upon the public than was already
                                             indicated that the reports mentioned in                 bulkhead frames. However, as we obtain                proposed in the NPRM.
                                             the Discussion section of the NPRM                      and analyze additional data, we might                 Related Service Information Under 1
                                             revealed cracking in the bulkhead frame                 consider further rulemaking. This AD                  CFR Part 51
                                             of retired Boeing Model 737 airplanes                   has not been changed in this regard.
                                             but there was no evidence of cracking in                                                                        We reviewed Boeing Alert
                                                                                                     Request To Expand Applicability to All                Requirements Bulletin 727–53A0235
                                             the bulkhead frame of Boeing Model 727
                                                                                                     Boeing Airplanes                                      RB, dated October 12, 2017. The service
                                             airplanes, despite those airplanes
                                             having a similar frame installation. The                  The commenter, Lynise Hogue,                        information describes procedures for
                                             commenter stated this posed concerns                    requested that we change the                          repetitive high frequency eddy current
                                             and asked how often would ‘‘. . . said                  applicability to all Boeing airplanes                 inspections and low frequency eddy
                                             repetitive inspections be conducted?’’                  because the proposed AD addresses ‘‘an                current inspections for cracks of the
                                                We infer the commenter is asking                     unsafe condition that is likely to exist or           station 259.5 bulkhead frame web from
                                             about the repetitive inspections required               develop on products identified in this                the first stiffener above S–10 to S–13, on
                                             by this AD and agree to clarify the                     rulemaking action.’’ The commenter                    the left and right sides of the airplane,
                                             inspection interval. As stated in                       provided no further justification for the             and applicable on-condition actions.
                                             paragraph (g) of this AD inspections are                request.                                              This service information is reasonably
                                             done at the applicable times specified in                 We do not agree with the commenter’s                available because the interested parties
                                             the ‘‘Compliance’’ paragraph of Boeing                  request to change the applicability of                have access to it through their normal
                                             Alert Requirements Bulletin 727–                        this AD. The commenter has not                        course of business or by the means
                                             53A0235 RB, dated October 12, 2017,                     provided any additional data, views, or               identified in the ADDRESSES section.
                                             which is at intervals not to exceed 8,600               arguments to support this request.
                                                                                                                                                           Costs of Compliance
                                             flight cycles. We have determined that                  Furthermore, such a change would
                                             these intervals and inspections are                     expand the scope of this AD and                         We estimate that this AD affects 106
                                             adequate to address the unsafe                          therefore require additional public                   airplanes of U.S. registry. We estimate
                                             condition. This AD has not been                         review and delay issuance of this final               the following costs to comply with this
                                             changed in this regard.                                 rule. This AD applies only to those                   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                         $0   $3,485 per inspection cycle ....    $369,410 per inspection cycle.
                                                                    inspection cycle.



                                               We have received no definitive data                   detail the scope of the Agency’s                      is within the scope of that authority
                                             that would enable us to provide cost                    authority.                                            because it addresses an unsafe condition
                                             estimates for the on-condition actions                     We are issuing this rulemaking under               that is likely to exist or develop on
                                             specified in this AD.                                   the authority described in Subtitle VII,              products identified in this rulemaking
                                                                                                     Part A, Subpart III, Section 44701:                   action.
                                             Authority for This Rulemaking
                                                                                                     ‘‘General requirements.’’ Under that                     This AD is issued in accordance with
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                                               Title 49 of the United States Code                    section, Congress charges the FAA with                authority delegated by the Executive
                                             specifies the FAA’s authority to issue                  promoting safe flight of civil aircraft in            Director, Aircraft Certification Service,
                                             rules on aviation safety. Subtitle I,                   air commerce by prescribing regulations               as authorized by FAA Order 8000.51C.
                                             section 106, describes the authority of                 for practices, methods, and procedures                In accordance with that order, issuance
                                             the FAA Administrator. Subtitle VII:                    the Administrator finds necessary for                 of ADs is normally a function of the
                                             Aviation Programs, describes in more                    safety in air commerce. This regulation               Compliance and Airworthiness


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                                                              Federal Register / Vol. 83, No. 189 / Friday, September 28, 2018 / Rules and Regulations                                             48917

                                             Division, but during this transition                    (d) Subject                                           certification office, send it to the attention of
                                             period, the Executive Director has                        Air Transport Association (ATA) of                  the person identified in paragraph (k) of this
                                             delegated the authority to issue ADs                    America Code 53, Fuselage.                            AD. Information may be emailed to: 9-ANM-
                                             applicable to transport category                                                                              LAACO-AMOC-Requests@faa.gov.
                                                                                                     (e) Unsafe Condition
                                             airplanes and associated appliances to                                                                          (2) Before using any approved AMOC,
                                                                                                        This AD was prompted by the results of a           notify your appropriate principal inspector,
                                             the Director of the System Oversight                    fleet survey, which revealed cracking in
                                             Division.                                                                                                     or lacking a principal inspector, the manager
                                                                                                     bulkhead frame webs at a certain body                 of the local flight standards district office/
                                             Regulatory Findings                                     station. We are issuing this AD to address
                                                                                                                                                           certificate holding district office.
                                                                                                     cracking in the station 259.5 bulkhead frame
                                               This AD will not have federalism                      web from the first stiffener above stringer             (3) An AMOC that provides an acceptable
                                             implications under Executive Order                      S–10 to S–13. Such cracking may lead to               level of safety may be used for any repair,
                                             13132. This AD will not have a                          subsequent failure of the skin and cockpit            modification, or alteration required by this
                                             substantial direct effect on the States, on             window surround structure, and could result           AD if it is approved by the Boeing
                                             the relationship between the national                   in rapid decompression.                               Commercial Airplanes Organization
                                             government and the States, or on the                    (f) Compliance                                        Designation Authorization (ODA) that has
                                             distribution of power and                                                                                     been authorized by the Manager, Los Angeles
                                                                                                        Comply with this AD within the                     ACO Branch, to make those findings. To be
                                             responsibilities among the various                      compliance times specified, unless already
                                                                                                                                                           approved, the repair method, modification
                                             levels of government.                                   done.
                                               For the reasons discussed above, I                                                                          deviation, or alteration deviation must meet
                                                                                                     (g) Required Actions                                  the certification basis of the airplane, and the
                                             certify that this AD:
                                               (1) Is not a ‘‘significant regulatory                    Except as required by paragraph (h) of this        approval must specifically refer to this AD.
                                             action’’ under Executive Order 12866,                   AD: At the applicable times specified in the
                                                                                                                                                           (k) Related Information
                                                                                                     ‘‘Compliance’’ paragraph of Boeing Alert
                                               (2) Is not a ‘‘significant rule’’ under                                                                       For more information about this AD,
                                                                                                     Requirements Bulletin 727–53A0235 RB,
                                             DOT Regulatory Policies and Procedures                  dated October 12, 2017, do all applicable             contact George Garrido, Aerospace Engineer,
                                             (44 FR 11034, February 26, 1979),                       actions identified in, and in accordance with,        Airframe Section, FAA, Los Angeles ACO
                                               (3) Will not affect intrastate aviation               the Accomplishment Instructions of Boeing             Branch, 3960 Paramount Boulevard,
                                             in Alaska, and                                          Alert Requirements Bulletin 727–53A0235               Lakewood, CA 90712–4137; phone: 562–627–
                                               (4) Will not have a significant                       RB, dated October 12, 2017.                           5232; fax: 562–627–5210; email:
                                             economic impact, positive or negative,                     Note 1 to paragraph (g) of this AD:
                                                                                                                                                           george.garrido@faa.gov.
                                             on a substantial number of small entities               Guidance for accomplishing the actions
                                             under the criteria of the Regulatory                    required by this AD can be found in Boeing            (l) Material Incorporated by Reference
                                             Flexibility Act.                                        Alert Service Bulletin 727–53A0235, dated
                                                                                                     October 12, 2017, which is referred to in                (1) The Director of the Federal Register
                                             List of Subjects in 14 CFR Part 39                      Boeing Alert Requirements Bulletin 727–               approved the incorporation by reference
                                                                                                     53A0235 RB, dated October 12, 2017.                   (IBR) of the service information listed in this
                                               Air transportation, Aircraft, Aviation                                                                      paragraph under 5 U.S.C. 552(a) and 1 CFR
                                             safety, Incorporation by reference,                     (h) Exceptions to Service Information                 part 51.
                                             Safety.                                                 Specifications                                           (2) You must use this service information
                                                                                                       (1) For purposes of determining                     as applicable to do the actions required by
                                             Adoption of the Amendment                               compliance with the requirements of this AD:          this AD, unless the AD specifies otherwise.
                                               Accordingly, under the authority                      Where Boeing Alert Requirements Bulletin                 (i) Boeing Alert Requirements Bulletin
                                             delegated to me by the Administrator,                   727–53A0235 RB, dated October 12, 2017,               727–53A0235 RB, dated October 12, 2017.
                                             the FAA amends 14 CFR part 39 as                        uses the phrase ‘‘the original issue date of             (ii) Reserved.
                                             follows:                                                Requirements Bulletin 727–53A0235 RB,’’
                                                                                                                                                              (3) For service information identified in
                                                                                                     this AD requires using ‘‘the effective date of
                                                                                                     this AD.’’                                            this AD, contact Boeing Commercial
                                             PART 39—AIRWORTHINESS                                                                                         Airplanes, Attention: Contractual & Data
                                                                                                       (2) Where Boeing Alert Requirements
                                             DIRECTIVES                                              Bulletin 727–53A0235 RB, dated October 12,            Services (C&DS), 2600 Westminster Blvd.,
                                                                                                     2017, specifies contacting Boeing, this AD            MC 110–SK57, Seal Beach, CA 90740–5600;
                                             ■ 1. The authority citation for part 39                                                                       telephone 562–797–1717; internet https://
                                                                                                     requires repair using a method approved in
                                             continues to read as follows:                           accordance with the procedures specified in           www.myboeingfleet.com.
                                                 Authority: 49 U.S.C. 106(g), 40113, 44701.          paragraph (j) of this AD.                                (4) You may view this service information
                                                                                                     (i) Special Flight Permit                             at the FAA, Transport Standards Branch,
                                             § 39.13   [Amended]                                                                                           2200 South 216th St., Des Moines, WA. For
                                             ■ 2. The FAA amends § 39.13 by adding                      Special flight permits, as described in            information on the availability of this
                                                                                                     Section 21.197 and Section 21.199 of the
                                             the following new airworthiness                         Federal Aviation Regulations (14 CFR 21.197
                                                                                                                                                           material at the FAA, call 206–231–3195.
                                             directive (AD):                                         and 21.199), may be issued to operate the                (5) You may view this service information
                                                                                                     airplane to a location where the requirements         that is incorporated by reference at the
                                             2018–20–05 The Boeing Company:
                                                 Amendment 39–19439; Docket No.                      of this AD can be accomplished, but                   National Archives and Records
                                                 FAA–2018–0452; Product Identifier                   concurrence by the Manager, Los Angeles               Administration (NARA). For information on
                                                 2017–NM–150–AD.                                     ACO Branch, FAA, is required before                   the availability of this material at NARA, call
                                                                                                     issuance of the special flight permit.                202–741–6030, or go to: http://
                                             (a) Effective Date                                                                                            www.archives.gov/federal-register/cfr/ibr-
                                                                                                     (j) Alternative Methods of Compliance
                                               This AD is effective November 2, 2018.                                                                      locations.html.
                                                                                                     (AMOCs)
                                             (b) Affected ADs                                           (1) The Manager, Los Angeles ACO Branch,             Issued in Des Moines, Washington, on
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                                               None.                                                 FAA, has the authority to approve AMOCs               September 13, 2018.
                                                                                                     for this AD, if requested using the procedures        Michael Kaszycki,
                                             (c) Applicability                                       found in 14 CFR 39.19. In accordance with             Acting Director, System Oversight Division,
                                                This AD applies to all The Boeing                    14 CFR 39.19, send your request to your               Aircraft Certification Service.
                                             Company Model 727C, 727–100, 727–100C,                  principal inspector or local Flight Standards
                                             727–200, and 727–200F series airplanes,                 District Office, as appropriate. If sending           [FR Doc. 2018–20917 Filed 9–27–18; 8:45 am]
                                             certificated in any category.                           information directly to the manager of the            BILLING CODE 4910–13–P




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Document Created: 2018-09-28 01:23:39
Document Modified: 2018-09-28 01:23:39
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 November 2, 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 48915 
RIN Number2120-AA64
CFR AssociatedAir Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety

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