83 FR 22420 - Airworthiness Directives; The Boeing Company Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 94 (May 15, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 94 (May 15, 2018)
| Page Range | 22420-22422 | |
| FR Document | 2018-10213 |
[Federal Register Volume 83, Number 94 (Tuesday, May 15, 2018)] [Proposed Rules] [Pages 22420-22422] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-10213] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0409; Product Identifier 2017-NM-120-AD] RIN 2120-AA64 Airworthiness Directives; The Boeing Company Airplanes AGENCY: Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). ----------------------------------------------------------------------- SUMMARY: We propose to supersede Airworthiness Directive (AD) 2017-16- 05, which applies to certain The Boeing Company Model 737-600, -700, - 700C, -800, -900, and -900ER series airplanes. AD 2017-16-05 requires a one-time detailed visual inspection for discrepancies in the Krueger flap bullnose attachment hardware, and related investigative and corrective actions if necessary. Since we issued AD 2017-16-05, we received a report of a missing no. 2 Krueger flap bullnose hinge bolt from an airplane that was not included in the applicability of AD 2017- 16-05. This proposed AD would add airplanes and an additional inspection to determine if any Krueger flap no. 1, 2, 3, or 4 has been replaced, and related investigative and corrective actions. Since this is a rotable parts issue, the applicability of this AD has been expanded beyond the airplanes listed in the related service bulletin to include all airplanes on which a Krueger flap bullnose may be installed. We are proposing this AD to address the unsafe condition on these products. DATES: We must receive comments on this proposed AD by June 29, 2018. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods:Federal eRulemaking Portal: Go to http://www.regulations.gov. Follow the instructions for submitting comments. Fax: 202-493-2251. Mail: U.S. Department of Transportation, Docket Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New Jersey Avenue SE, Washington, DC 20590. Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this NPRM, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740-5600; telephone: 562-797-1717; internet: https://www.myboeingfleet.com. You may view this 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-2018-0409. 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- 0409; 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 NPRM, the regulatory evaluation, any comments received, and other information. The street address for Docket Operations (phone: 800-647- 5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Alan Pohl, Aerospace Engineer, Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-3527; email: [email protected]. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposal. Send your comments to an address listed under the ADDRESSES section. Include ``Docket No. FAA-2018-0409; Product Identifier 2017-NM-120-AD'' at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this NPRM. We will consider all comments received by the closing date and may amend this NPRM because of those comments. We will post all comments we receive, without change, to http://www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion We issued AD 2017-16-05, Amendment 39-18982 (82 FR 39344, August 18, 2017) (``AD 2017-16-05''), for certain The Boeing Company Model 737-600, -700, -700C, -800, -900, and -900ER series airplanes. AD 2017- 16-05 requires a one-time detailed visual inspection for discrepancies in the Krueger flap bullnose attachment hardware, and related investigative and corrective actions, if necessary. AD 2017-16-05 resulted from a report of a Krueger flap bullnose departing an airplane during taxi, which caused damage to the wing structure and thrust reverser. We issued AD 2017-16-05 to detect and correct missing Krueger flap bullnose hardware. Such missing hardware could result in the Krueger flap bullnose departing the airplane during flight, which could damage empennage structure and lead to the inability to maintain continued safe flight and landing. Actions Since AD 2017-16-05 Was Issued Since we issued AD 2017-16-05, we have received a report of a missing no. 2 Krueger flap bullnose hinge bolt from an airplane that was not included in the applicability of AD 2017-16-05. Related Service Information Under 1 CFR Part 51 We reviewed Boeing Alert Service Bulletin 737-57A1327, Revision 2, dated July 25, 2017 (``BASB 737-57A1327, R2''). This service information describes procedures for a one-time detailed visual inspection for discrepancies in the Krueger flap bullnose attachment hardware, and related investigative and corrective actions; and an inspection to determine if any Krueger flap no. 1, 2, 3, or 4 has been replaced, and related investigative and corrective actions. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. FAA's Determination We are proposing this AD because we evaluated all the relevant information and determined the unsafe condition [[Page 22421]] described previously is likely to exist or develop in other products of the same type design. Proposed AD Requirements Although this proposed AD does not explicitly restate the requirements of AD 2017-16-05, this proposed AD would retain certain requirements of AD 2017-16-05. Those requirements are referenced in the service information identified previously, which, in turn, is referenced in paragraph (g) of this proposed AD. This proposed AD would add airplanes and an additional inspection to determine if any Krueger flap no. 1, 2, 3, or 4 has been replaced, and applicable related investigative and corrective actions. This proposed AD would also require accomplishment of the actions identified as ``RC'' (required for compliance) in the Accomplishment Instructions of BASB 737-57A1327, R2, described previously, except as discussed under ``Differences Between this Proposed AD and the Service Information.'' For information on the procedures and compliance times, see this service information at http://www.regulations.gov by searching for and locating Docket No. FAA-2018-0409. Differences Between This Proposed AD and the Service Information Because the affected parts identified in this NPRM are rotable parts, we have determined that these parts could later be installed on airplanes that were initially delivered with acceptable parts, thereby subjecting those airplanes to the unsafe condition. Therefore, while the effectivity of BASB 737-57A1327, R2 is limited to line numbers 1 through 6465 inclusive, the applicability of this proposed AD includes all The Boeing Company Model 737-600, -700, -700C, -800, -900, and - 900ER series airplanes. This difference has been coordinated with Boeing. Costs of Compliance We estimate that this proposed AD affects 1,814 airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: Estimated Costs ---------------------------------------------------------------------------------------------------------------- Cost per Cost on U.S. Action Labor cost Parts cost product operators ---------------------------------------------------------------------------------------------------------------- Inspection of the Krueger flap 3 work-hours x $85 per $0 $255 $381,225 bullnose hardware (1,495 airplanes) hour = $255. (retained actions from AD 2017-16-05). Inspection to determine if any Krueger 3 work-hours x $85 per 0 255 462,570 flap no. 1, 2, 3, or 4 has been hour = $255. replaced (1,814 airplanes) (new proposed action). ---------------------------------------------------------------------------------------------------------------- We have received no definitive data that would enable us to provide cost estimates for the on-condition actions specified in this proposed AD. According to the manufacturer, some of the costs of this proposed AD may be covered under warranty, thereby reducing the cost impact on affected individuals. We do not control warranty coverage for affected individuals. As a result, we have included all available costs in our cost estimate. 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 proposed AD is issued in accordance with authority delegated by the Executive Director, Aircraft Certification Service, as authorized by FAA Order 8000.51C. In accordance with that order, issuance of ADs is normally a function of the Compliance and Airworthiness Division, but during this transition period, the Executive Director has delegated the authority to issue ADs applicable to transport category airplanes and associated appliances to the Director of the System Oversight Division. Regulatory Findings We have determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that the proposed regulation: (1) Is not a ``significant regulatory action'' under Executive Order 12866, (2) Is not a ``significant rule'' under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4) Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA proposes to amend 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. Sec. 39.13 [Amended] 0 2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD) 2017-16-05, Amendment 39-18982 (82 FR 39344, August 18, 2017), and adding the following new AD: The Boeing Company: Docket No. FAA-2018-0409; Product Identifier 2017-NM-120-AD. (a) Comments Due Date The FAA must receive comments on this AD action by June 29, 2018. [[Page 22422]] (b) Affected ADs This AD replaces AD 2017-16-05, Amendment 39-18982 (82 FR 39344, August 18, 2017) (``AD 2017-16-05''). (c) Applicability This AD applies to all The Boeing Company Model 737-600, -700, - 700C, -800, -900, and -900ER series airplanes, certificated in any category, as specified in paragraphs (c)(1) through (c)(3) of this AD. (1) Airplanes in Groups 1 and 2 as identified in Boeing Alert Service Bulletin 737-57A1327, Revision 2, dated July 25, 2017 (``BASB 737-57A1327, R2''). (2) Airplanes in Group 3, as identified in BASB 737-57A1327, R2, except where this service bulletin specifies the groups as line numbers 6422 through 6465 inclusive, this AD specifies those groups as line number 6422 through any line number airplane with an original Certificate of Airworthiness or an original Export Certificate of Airworthiness dated on or before the effective date of this AD. (3) All Model 737-600, -700, -700C, -800, -900 and -900ER series airplanes with an original Certificate of Airworthiness or an original Export Certificate of Airworthiness dated after the effective date of this AD. (d) Subject Air Transport Association (ATA) of America Code 57, Wings. (e) Unsafe Condition This AD was prompted by a report of a Krueger flap bullnose departing an airplane during taxi, which caused damage to the wing structure and thrust reverser, and a report of a missing no. 2 Krueger flap bullnose hinge bolt from an airplane that was not included in the effectivity of AD 2017-16-05. We are issuing this AD to address missing Krueger flap bullnose hardware. Such missing hardware could result in the Krueger flap bullnose departing the airplane during flight, which could damage empennage structure and lead to the inability to maintain continued safe flight and landing. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions For airplanes identified in paragraphs (c)(1) and (c)(2) of this AD: Except as required by paragraph (h) of this AD, at the applicable times specified in paragraph 1.E., ``Compliance,'' of BASB 737-57A1327, R2, do all applicable actions identified as ``RC'' (required for compliance) in, and in accordance with, the Accomplishment Instructions of BASB 737-57A1327, R2. (h) Exceptions to Service Information Specifications (1) For purposes of determining compliance with the requirements of this AD: Where BASB 737-57A1327, R2 uses the phrase ``the original issue date of this service bulletin,'' this AD requires using September 22, 2017 (the effective date of AD 2017-16-05). (2) For purposes of determining compliance with the requirements of this AD: Where BASB 737-57A1327, R2 uses the phrase ``the Revision 2 date of this service bulletin,'' this AD requires using ``the effective date of this AD.'' (i) Parts Installation Limitation As of the effective date of this AD, no person may install a Krueger flap or Krueger flap bullnose on any airplane, unless the actions required by paragraph (g) of this AD have been accomplished on the Krueger flap bullnose. (j) Credit for Previous Actions (1) This paragraph provides credit for the actions specified in paragraph (g) of this AD, if those actions were performed before September 22, 2017 (the effective date of AD 2017-16-05), using Boeing Alert Service Bulletin 737-57A1327, dated May 20, 2016. (2) This paragraph provides credit for the actions specified in paragraph (g) of this AD, if those actions were performed before the effective date of this AD, using Boeing Alert Service Bulletin 737- 57A1327, Revision 1, dated September 28, 2016. (k) Alternative Methods of Compliance (AMOCs) (1) The Manager, Seattle 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 (l)(1) of this AD. Information may be emailed to: [email protected]. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/certificate holding district office. (3) An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by the Boeing Commercial Airplanes Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO 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. (4) AMOCs approved previously for AD 2017-16-05 are approved as AMOCs for the corresponding provisions of BASB 737-57A1327, R2 that are required by paragraph (g) of this AD. (5) 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) Operators may deviate from steps not labeled as RC by 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 (1) For more information about this AD, contact Alan Pohl, Aerospace Engineer, Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-3527; email: [email protected]. (2) For service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 2600 Westminster Blvd., MC 110-SK57, Seal Beach, CA 90740- 5600; telephone: 562-797-1717; internet: https://www.myboeingfleet.com. You may view this referenced service information at the FAA, Transport Standards Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206-231-3195. Issued in Des Moines, Washington, on May 7, 2018. Michael Kaszycki, Acting Director, System Oversight Division, Aircraft Certification Service. [FR Doc. 2018-10213 Filed 5-14-18; 8:45 am] BILLING CODE 4910-13-P
![22420 Federal Register / Vol. 83, No. 94 / Tuesday, May 15, 2018 / Proposed Rules
MC 110–SK57, Seal Beach, CA 90740–5600; • Federal eRulemaking Portal: Go to date and may amend this NPRM
telephone 562–797–1717; internet https:// http://www.regulations.gov. Follow the because of those comments.
www.myboeingfleet.com. You may view this instructions for submitting comments. We will post all comments we
service information at the FAA, Transport • Fax: 202–493–2251. receive, without change, to http://
Standards Branch, 2200 South 216th St., Des
Moines, WA. For information on the
• Mail: U.S. Department of www.regulations.gov, including any
availability of this material at the FAA, call Transportation, Docket Operations, M– personal information you provide. We
206–231–3195. 30, West Building Ground Floor, Room will also post a report summarizing each
W12–140, 1200 New Jersey Avenue SE, substantive verbal contact we receive
Issued in Des Moines, Washington, on May
Washington, DC 20590. about this proposed AD.
7, 2018.
• Hand Delivery: Deliver to Mail Discussion
Michael Kaszycki,
address above between 9 a.m. and 5
Acting Director, System Oversight Division, p.m., Monday through Friday, except We issued AD 2017–16–05,
Aircraft Certification Service. Amendment 39–18982 (82 FR 39344,
Federal holidays.
[FR Doc. 2018–10209 Filed 5–14–18; 8:45 am] August 18, 2017) (‘‘AD 2017–16–05’’),
For service information identified in
BILLING CODE 4910–13–P this NPRM, contact Boeing Commercial for certain The Boeing Company Model
Airplanes, Attention: Contractual & Data 737–600, –700, –700C, –800, –900, and
Services (C&DS), 2600 Westminster –900ER series airplanes. AD 2017–16–
DEPARTMENT OF TRANSPORTATION 05 requires a one-time detailed visual
Blvd., MC 110–SK57, Seal Beach, CA
90740–5600; telephone: 562–797–1717; inspection for discrepancies in the
Federal Aviation Administration Krueger flap bullnose attachment
internet: https://www.myboeingfleet.
com. You may view this service hardware, and related investigative and
14 CFR Part 39 corrective actions, if necessary. AD
information at the FAA, Transport
[Docket No. FAA–2018–0409; Product Standards Branch, 2200 South 216th St., 2017–16–05 resulted from a report of a
Identifier 2017–NM–120–AD] Des Moines, WA. For information on the Krueger flap bullnose departing an
availability of this material at the FAA, airplane during taxi, which caused
RIN 2120–AA64 damage to the wing structure and thrust
call 206–231–3195. It is also available
on the internet at http:// reverser. We issued AD 2017–16–05 to
Airworthiness Directives; The Boeing
www.regulations.gov by searching for detect and correct missing Krueger flap
Company Airplanes
and locating Docket No. FAA–2018– bullnose hardware. Such missing
AGENCY: Federal Aviation 0409. hardware could result in the Krueger
Administration (FAA), DOT. flap bullnose departing the airplane
Examining the AD Docket during flight, which could damage
ACTION: Notice of proposed rulemaking
(NPRM). You may examine the AD docket on empennage structure and lead to the
the internet at http:// inability to maintain continued safe
SUMMARY: We propose to supersede www.regulations.gov by searching for flight and landing.
Airworthiness Directive (AD) 2017–16– and locating Docket No. FAA–2018– Actions Since AD 2017–16–05 Was
05, which applies to certain The Boeing 0409; or in person at Docket Operations Issued
Company Model 737–600, –700, –700C, between 9 a.m. and 5 p.m., Monday
–800, –900, and –900ER series through Friday, except Federal holidays. Since we issued AD 2017–16–05, we
airplanes. AD 2017–16–05 requires a The AD docket contains this NPRM, the have received a report of a missing no.
one-time detailed visual inspection for regulatory evaluation, any comments 2 Krueger flap bullnose hinge bolt from
discrepancies in the Krueger flap received, and other information. The an airplane that was not included in the
bullnose attachment hardware, and street address for Docket Operations applicability of AD 2017–16–05.
related investigative and corrective (phone: 800–647–5527) is in the Related Service Information Under 1
actions if necessary. Since we issued AD ADDRESSES section. Comments will be CFR Part 51
2017–16–05, we received a report of a available in the AD docket shortly after
missing no. 2 Krueger flap bullnose We reviewed Boeing Alert Service
receipt.
hinge bolt from an airplane that was not Bulletin 737–57A1327, Revision 2,
FOR FURTHER INFORMATION CONTACT: dated July 25, 2017 (‘‘BASB 737–
included in the applicability of AD Alan Pohl, Aerospace Engineer,
2017–16–05. This proposed AD would 57A1327, R2’’). This service information
Airframe Section, FAA, Seattle ACO describes procedures for a one-time
add airplanes and an additional Branch, 2200 South 216th St., Des
inspection to determine if any Krueger detailed visual inspection for
Moines, WA 98198; phone and fax: 206– discrepancies in the Krueger flap
flap no. 1, 2, 3, or 4 has been replaced, 231–3527; email: alan.pohl@faa.gov.
and related investigative and corrective bullnose attachment hardware, and
SUPPLEMENTARY INFORMATION: related investigative and corrective
actions. Since this is a rotable parts
issue, the applicability of this AD has Comments Invited actions; and an inspection to determine
been expanded beyond the airplanes if any Krueger flap no. 1, 2, 3, or 4 has
We invite you to send any written been replaced, and related investigative
listed in the related service bulletin to relevant data, views, or arguments about
include all airplanes on which a and corrective actions.
this proposal. Send your comments to This service information is reasonably
Krueger flap bullnose may be installed. an address listed under the ADDRESSES
We are proposing this AD to address the available because the interested parties
daltland on DSKBBV9HB2PROD with PROPOSALS
section. Include ‘‘Docket No. FAA– have access to it through their normal
unsafe condition on these products. 2018–0409; Product Identifier 2017– course of business or by the means
DATES: We must receive comments on NM–120–AD’’ at the beginning of your identified in the ADDRESSES section.
this proposed AD by June 29, 2018. comments. We specifically invite
ADDRESSES: You may send comments, comments on the overall regulatory, FAA’s Determination
using the procedures found in 14 CFR economic, environmental, and energy We are proposing this AD because we
11.43 and 11.45, by any of the following aspects of this NPRM. We will consider evaluated all the relevant information
methods: all comments received by the closing and determined the unsafe condition
VerDate Sep<11>2014 16:36 May 14, 2018 Jkt 244001 PO 00000 Frm 00008 Fmt 4702 Sfmt 4702 E:\FR\FM\15MYP1.SGM 15MYP1](https://thefederalregister.org/doc/83_FR_22514/page/1.svg)
![Federal Register / Vol. 83, No. 94 / Tuesday, May 15, 2018 / Proposed Rules 22421
described previously is likely to exist or would also require accomplishment of determined that these parts could later
develop in other products of the same the actions identified as ‘‘RC’’ (required be installed on airplanes that were
type design. for compliance) in the Accomplishment initially delivered with acceptable parts,
Instructions of BASB 737–57A1327, R2, thereby subjecting those airplanes to the
Proposed AD Requirements
described previously, except as unsafe condition. Therefore, while the
Although this proposed AD does not discussed under ‘‘Differences Between effectivity of BASB 737–57A1327, R2 is
explicitly restate the requirements of AD this Proposed AD and the Service limited to line numbers 1 through 6465
2017–16–05, this proposed AD would Information.’’ inclusive, the applicability of this
retain certain requirements of AD 2017– For information on the procedures proposed AD includes all The Boeing
16–05. Those requirements are and compliance times, see this service Company Model 737–600, –700, –700C,
referenced in the service information information at http:// –800, –900, and –900ER series
identified previously, which, in turn, is www.regulations.gov by searching for airplanes. This difference has been
referenced in paragraph (g) of this and locating Docket No. FAA–2018– coordinated with Boeing.
proposed AD. This proposed AD would 0409.
add airplanes and an additional Costs of Compliance
inspection to determine if any Krueger Differences Between This Proposed AD We estimate that this proposed AD
flap no. 1, 2, 3, or 4 has been replaced, and the Service Information affects 1,814 airplanes of U.S. registry.
and applicable related investigative and Because the affected parts identified We estimate the following costs to
corrective actions. This proposed AD in this NPRM are rotable parts, we have comply with this proposed AD:
ESTIMATED COSTS
Cost per Cost on U.S.
Action Labor cost Parts cost product operators
Inspection of the Krueger flap bullnose hardware (1,495 air- 3 work-hours × $85 per hour $0 $255 $381,225
planes) (retained actions from AD 2017–16–05). = $255.
Inspection to determine if any Krueger flap no. 1, 2, 3, or 4 3 work-hours × $85 per hour 0 255 462,570
has been replaced (1,814 airplanes) (new proposed ac- = $255.
tion).
We have received no definitive data This proposed AD is issued in on a substantial number of small entities
that would enable us to provide cost accordance with authority delegated by under the criteria of the Regulatory
estimates for the on-condition actions the Executive Director, Aircraft Flexibility Act.
specified in this proposed AD. Certification Service, as authorized by
According to the manufacturer, some FAA Order 8000.51C. In accordance List of Subjects in 14 CFR Part 39
of the costs of this proposed AD may be with that order, issuance of ADs is Air transportation, Aircraft, Aviation
covered under warranty, thereby normally a function of the Compliance
safety, Incorporation by reference,
reducing the cost impact on affected and Airworthiness Division, but during
Safety.
individuals. We do not control warranty this transition period, the Executive
coverage for affected individuals. As a Director has delegated the authority to The Proposed Amendment
result, we have included all available issue ADs applicable to transport
costs in our cost estimate. category airplanes and associated Accordingly, under the authority
appliances to the Director of the System delegated to me by the Administrator,
Authority for This Rulemaking Oversight Division. the FAA proposes to amend 14 CFR part
Title 49 of the United States Code 39 as follows:
Regulatory Findings
specifies the FAA’s authority to issue
rules on aviation safety. Subtitle I, We have determined that this PART 39—AIRWORTHINESS
Section 106, describes the authority of proposed AD would not have federalism DIRECTIVES
the FAA Administrator. Subtitle VII, implications under Executive Order
13132. This proposed AD would not ■ 1. The authority citation for part 39
Aviation Programs, describes in more
have a substantial direct effect on the continues to read as follows:
detail the scope of the Agency’s
States, on the relationship between the
authority. Authority: 49 U.S.C. 106(g), 40113, 44701.
national Government and the States, or
We are issuing this rulemaking under on the distribution of power and
the authority described in Subtitle VII, § 39.13 [Amended]
responsibilities among the various
Part A, Subpart III, Section 44701, levels of government. ■ 2. The FAA amends § 39.13 by
‘‘General requirements.’’ Under that For the reasons discussed above, I removing Airworthiness Directive (AD)
section, Congress charges the FAA with certify that the proposed regulation: 2017–16–05, Amendment 39–18982 (82
promoting safe flight of civil aircraft in (1) Is not a ‘‘significant regulatory FR 39344, August 18, 2017), and adding
air commerce by prescribing regulations action’’ under Executive Order 12866, the following new AD:
daltland on DSKBBV9HB2PROD with PROPOSALS
for practices, methods, and procedures (2) Is not a ‘‘significant rule’’ under
the Administrator finds necessary for the DOT Regulatory Policies and The Boeing Company: Docket No. FAA–
safety in air commerce. This regulation Procedures (44 FR 11034, February 26, 2018–0409; Product Identifier 2017–
is within the scope of that authority 1979), NM–120–AD.
because it addresses an unsafe condition (3) Will not affect intrastate aviation (a) Comments Due Date
that is likely to exist or develop on in Alaska, and
products identified in this rulemaking (4) Will not have a significant The FAA must receive comments on this
action. economic impact, positive or negative, AD action by June 29, 2018.
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(b) Affected ADs (2) For purposes of determining deviations to RC steps, including substeps
This AD replaces AD 2017–16–05, compliance with the requirements of this AD: and identified figures.
Amendment 39–18982 (82 FR 39344, August Where BASB 737–57A1327, R2 uses the (ii) Operators may deviate from steps not
18, 2017) (‘‘AD 2017–16–05’’). phrase ‘‘the Revision 2 date of this service labeled as RC by using accepted methods in
bulletin,’’ this AD requires using ‘‘the accordance with the operator’s maintenance
(c) Applicability effective date of this AD.’’ or inspection program without obtaining
This AD applies to all The Boeing approval of an AMOC, provided the RC steps,
(i) Parts Installation Limitation including substeps and identified figures, can
Company Model 737–600, –700, –700C,
–800, –900, and –900ER series airplanes, As of the effective date of this AD, no still be done as specified, and the airplane
certificated in any category, as specified in person may install a Krueger flap or Krueger can be put back in an airworthy condition.
paragraphs (c)(1) through (c)(3) of this AD. flap bullnose on any airplane, unless the
actions required by paragraph (g) of this AD (l) Related Information
(1) Airplanes in Groups 1 and 2 as
identified in Boeing Alert Service Bulletin have been accomplished on the Krueger flap (1) For more information about this AD,
737–57A1327, Revision 2, dated July 25, bullnose. contact Alan Pohl, Aerospace Engineer,
2017 (‘‘BASB 737–57A1327, R2’’). Airframe Section, FAA, Seattle ACO Branch,
(2) Airplanes in Group 3, as identified in (j) Credit for Previous Actions 2200 South 216th St., Des Moines, WA
BASB 737–57A1327, R2, except where this (1) This paragraph provides credit for the 98198; phone and fax: 206–231–3527; email:
service bulletin specifies the groups as line actions specified in paragraph (g) of this AD, alan.pohl@faa.gov.
numbers 6422 through 6465 inclusive, this if those actions were performed before (2) For service information identified in
AD specifies those groups as line number September 22, 2017 (the effective date of AD this AD, contact Boeing Commercial
6422 through any line number airplane with 2017–16–05), using Boeing Alert Service Airplanes, Attention: Contractual & Data
an original Certificate of Airworthiness or an Bulletin 737–57A1327, dated May 20, 2016. Services (C&DS), 2600 Westminster Blvd.,
original Export Certificate of Airworthiness (2) This paragraph provides credit for the MC 110–SK57, Seal Beach, CA 90740–5600;
dated on or before the effective date of this actions specified in paragraph (g) of this AD, telephone: 562–797–1717; internet: https://
AD. if those actions were performed before the www.myboeingfleet.com. You may view this
(3) All Model 737–600, –700, –700C, –800, effective date of this AD, using Boeing Alert referenced service information at the FAA,
–900 and –900ER series airplanes with an Service Bulletin 737–57A1327, Revision 1, Transport Standards Branch, 2200 South
original Certificate of Airworthiness or an dated September 28, 2016. 216th St., Des Moines, WA. For information
original Export Certificate of Airworthiness on the availability of this material at the
dated after the effective date of this AD. (k) Alternative Methods of Compliance
FAA, call 206–231–3195.
(AMOCs)
(d) Subject (1) The Manager, Seattle ACO Branch, Issued in Des Moines, Washington, on May
Air Transport Association (ATA) of FAA, has the authority to approve AMOCs 7, 2018.
America Code 57, Wings. for this AD, if requested using the procedures Michael Kaszycki,
(e) Unsafe Condition found in 14 CFR 39.19. In accordance with Acting Director, System Oversight Division,
14 CFR 39.19, send your request to your Aircraft Certification Service.
This AD was prompted by a report of a principal inspector or local Flight Standards [FR Doc. 2018–10213 Filed 5–14–18; 8:45 am]
Krueger flap bullnose departing an airplane District Office, as appropriate. If sending
during taxi, which caused damage to the BILLING CODE 4910–13–P
information directly to the manager of the
wing structure and thrust reverser, and a certification office, send it to the attention of
report of a missing no. 2 Krueger flap the person identified in paragraph (l)(1) of
bullnose hinge bolt from an airplane that was this AD. Information may be emailed to: 9- DEPARTMENT OF TRANSPORTATION
not included in the effectivity of AD 2017– ANM-Seattle-ACO-AMOC-Requests@faa.gov.
16–05. We are issuing this AD to address (2) Before using any approved AMOC, Federal Aviation Administration
missing Krueger flap bullnose hardware. notify your appropriate principal inspector,
Such missing hardware could result in the or lacking a principal inspector, the manager 14 CFR Part 39
Krueger flap bullnose departing the airplane of the local flight standards district office/
during flight, which could damage [Docket No. FAA–2018–0412; Product
certificate holding district office.
empennage structure and lead to the inability Identifier 2017–NM–180–AD]
(3) An AMOC that provides an acceptable
to maintain continued safe flight and level of safety may be used for any repair, RIN 2120–AA64
landing. modification, or alteration required by this
(f) Compliance AD if it is approved by the Boeing Airworthiness Directives; The Boeing
Commercial Airplanes Organization Company Airplanes
Comply with this AD within the
Designation Authorization (ODA) that has
compliance times specified, unless already
done. been authorized by the Manager, Seattle ACO AGENCY: Federal Aviation
Branch, to make those findings. To be Administration (FAA), DOT.
(g) Required Actions approved, the repair method, modification ACTION: Notice of proposed rulemaking
For airplanes identified in paragraphs deviation, or alteration deviation must meet
the certification basis of the airplane, and the
(NPRM).
(c)(1) and (c)(2) of this AD: Except as
required by paragraph (h) of this AD, at the approval must specifically refer to this AD.
SUMMARY: We propose to supersede
applicable times specified in paragraph 1.E., (4) AMOCs approved previously for AD
2017–16–05 are approved as AMOCs for the Airworthiness Directive (AD) 2010–25–
‘‘Compliance,’’ of BASB 737–57A1327, R2, 06, which applies to certain The Boeing
do all applicable actions identified as ‘‘RC’’ corresponding provisions of BASB 737–
(required for compliance) in, and in 57A1327, R2 that are required by paragraph Company Model 737–200, –300, –400,
accordance with, the Accomplishment (g) of this AD. and –500 series airplanes. AD 2010–25–
Instructions of BASB 737–57A1327, R2. (5) For service information that contains 06 requires repetitive inspections for
steps that are labeled as RC, the provisions cracking of certain fuselage frames and
daltland on DSKBBV9HB2PROD with PROPOSALS
(h) Exceptions to Service Information of paragraphs (k)(5)(i) and (k)(5)(ii) of this AD stub beams, and corrective actions if
Specifications apply. necessary. AD 2010–25–06 also
(1) For purposes of determining (i) The steps labeled as RC, including
provides for an optional repair, which
compliance with the requirements of this AD: substeps under an RC step and any figures
Where BASB 737–57A1327, R2 uses the identified in an RC step, must be done to terminates the repetitive inspections.
phrase ‘‘the original issue date of this service comply with the AD. If a step or substep is For airplanes on which a certain repair
bulletin,’’ this AD requires using September labeled ‘‘RC Exempt,’’ then the RC is done, AD 2010–25–06 also requires
22, 2017 (the effective date of AD 2017–16– requirement is removed from that step or repetitive inspections for cracking of
05). substep. An AMOC is required for any certain fuselage frames and stub beams,
VerDate Sep<11>2014 16:36 May 14, 2018 Jkt 244001 PO 00000 Frm 00010 Fmt 4702 Sfmt 4702 E:\FR\FM\15MYP1.SGM 15MYP1](https://thefederalregister.org/doc/83_FR_22514/page/3.svg)
Document Created: 2018-05-15 00:33:12
Document Modified: 2018-05-15 00:33:12
| Category | Regulatory Information | |
| Collection | Federal Register | |
| sudoc Class | AE 2.7: GS 4.107: AE 2.106: | |
| Publisher | Office of the Federal Register, National Archives and Records Administration | |
| Section | Proposed Rules | |
| Action | Notice of proposed rulemaking (NPRM). | |
| Dates | We must receive comments on this proposed AD by June 29, 2018. | |
| Contact | Alan Pohl, Aerospace Engineer, Airframe Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone and fax: 206-231-3527; email: [email protected] | |
| FR Citation | 83 FR 22420 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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