83 FR 48927 - Airworthiness Directives; The Boeing Company Airplanes
DEPARTMENT OF TRANSPORTATION
Federal Aviation Administration Federal Register Volume 83, Issue 189 (September 28, 2018)
Federal Aviation Administration
Federal Register Volume 83, Issue 189 (September 28, 2018)
| Page Range | 48927-48930 | |
| FR Document | 2018-20918 |
[Federal Register Volume 83, Number 189 (Friday, September 28, 2018)] [Rules and Regulations] [Pages 48927-48930] From the Federal Register Online [www.thefederalregister.org] [FR Doc No: 2018-20918] [[Page 48927]] ----------------------------------------------------------------------- DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA-2018-0504; Product Identifier 2018-NM-046-AD; Amendment 39-19433; AD 2018-19-32] 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 707, 720, and 720B series airplanes. This AD was prompted by a report indicating that a fracture of the midspar fitting resulted in the separation of the inboard strut and engine from the airplane, and a determination that existing inspections are not sufficient for timely detection of cracking. This AD requires repetitive inspections of certain nacelle strut spar and overwing fittings, and diagonal braces and associated fittings; replacement of the diagonal brace assembly on certain airplanes; and applicable related investigative and corrective 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 certain publications 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- 0504. 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- 0504; 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 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: Jeffrey Chang, Aerospace Engineer, Propulsion Section, FAA, Los Angeles ACO Branch, 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627-5263; fax: 562-627- 5210; email: jeffrey.chang@faa.gov; or 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 george.garrido@faa.gov. 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 707, 720, and 720B series airplanes. The NPRM published in the Federal Register on June 7, 2018 (83 FR 26383). The NPRM was prompted by a report indicating that a fracture of the midspar fitting resulted in the separation of the inboard strut and engine from the airplane, and a determination that existing inspections are not sufficient for timely detection of cracking. The NPRM proposed to require repetitive inspections of certain nacelle strut spar and overwing fittings, and diagonal braces and associated fittings; replacement of the diagonal brace assembly on certain airplanes; and applicable related investigative and corrective actions. We are issuing this AD to address cracks, which if not detected and corrected, could grow beyond a critical length, allowing the strut fitting to fail and reducing the structural integrity of the nacelle. This, in combination with damage to adjacent attachment structure, could result in the loss of an engine from the airplane. Comments We gave the public the opportunity to participate in developing this final rule. The following presents the comment received on the NPRM and the FAA's response. Request To Clarify Service Information Used for Oversizing Certain Holes Boeing requested that we revise paragraph (k) of the proposed AD to specify outboard diagonal brace end fitting (forward or aft) attach holes that have been oversized as specified in Boeing 707 Alert Service Bulletin A3364, ``Revision 3, dated May 29, 1981,'' rather than ``Revision 4, dated February 21, 2017.'' Boeing noted that Boeing 707 Alert Service Bulletin A3364, Revision 4, dated February 21, 2017, does not contain instructions for oversizing the attach holes, but instead refers to oversizing done as specified in Revision 3. Boeing added that, as written, the proposed AD would not require operators to replace a diagonal brace assembly with attach holes that were oversized as specified in Boeing 707 Alert Service Bulletin A3364, Revision 3, dated May 29, 1981, potentially allowing an unsafe condition to continue. We agree with the commenter's request. We have revised paragraph (k) of this AD to specify ``. . . outboard diagonal brace end fitting (forward or aft) attach holes have been oversized as specified in Boeing 707 Alert Service Bulletin A3364, Revision 3, dated May 29, 1981.'' Conclusion We reviewed the relevant data, considered the comment received, and determined that air safety and the public interest require adopting this final rule with the change described previously and 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. We also determined that these changes will not increase the economic burden on any operator or increase the scope of this final rule. Related Service Information Under 1 CFR Part 51 We reviewed the following service information. Boeing 707 Alert Service Bulletin A3364, Revision 4, dated February 21, 2017. This service information describes procedures for repetitive detailed inspections of the diagonal brace tube for any crack; repetitive detailed inspections and high frequency eddy current (HFEC) inspections of the nacelle strut diagonal brace end fittings, forward mating fitting, and aft mating [[Page 48928]] fitting for any crack; an alternative dye penetrant inspection of vertical webs on aft mating fitting for any crack; an HFEC inspection of the diagonal brace tube for any crack; and corrective actions. Boeing 707 Alert Service Bulletin A3365, Revision 3, dated March 9, 2017. This service information describes procedures for repetitive detailed, HFEC, and ultrasonic inspections of the overwing support fittings for any crack at the bolt hole forward of the wing front spar and at the holes for the four fasteners attaching the fitting to the spar, and related investigative and corrective actions. Boeing 707 Alert Service Bulletin A3514, Revision 1, dated November 9, 2016. This service information describes procedures for repetitive detailed and surface HFEC inspections of the front spar fittings at nacelle struts numbers 1, 2, 3, and 4 for cracks, and replacement of cracked front spar fittings. 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 65 airplanes of U.S. registry. We estimate the following costs to comply with this AD: Estimated Costs -------------------------------------------------------------------------------------------------------------------------------------------------------- Action Labor cost Parts cost Cost per product Cost on U.S. operators -------------------------------------------------------------------------------------------------------------------------------------------------------- Detailed inspections per Service 36 work-hours x $85 per $0 $3,060 per inspection cycle........ $198,900 per inspection cycle. Bulletin A3364, Revision 4. hour = $3,060 per inspection cycle. HFEC inspections per Service Bulletin 128 work-hours x $85 per 0 $10,880 per inspection cycle....... $707,200 per inspection cycle. A3364, Revision 4. hour = $10,880 per inspection cycle. Inspections per Service Bulletin 20 work-hours x $85 per 0 $1,700 per inspection cycle........ $110,500 per inspection cycle. A3365, Revision 3. hour = $1,700 per inspection cycle. Detailed inspections per Service 12 work-hours x $85 per 0 $1,020 per inspection cycle........ $66,300 per inspection cycle. Bulletin A3514, Revision 1. hour = $1,020 per inspection cycle. HFEC inspections per Service Bulletin 32 work-hours x $85 per 0 $2,720 per inspection cycle........ $176,800 per inspection cycle. A3514, Revision 1. hour = $2,720 per inspection cycle. -------------------------------------------------------------------------------------------------------------------------------------------------------- We estimate that any necessary replacement of affected fittings would take about 96 work-hours for a cost of $8,160 per fitting. We have received no definitive data on the parts costs of the affected fittings. We have no way of determining the number of aircraft that might need this replacement. 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 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): 2018-19-32 The Boeing Company: Amendment 39-19433; Docket No. FAA- 2018-0504; Product Identifier 2018-NM-046-AD. (a) Effective Date This AD is effective November 2, 2018. (b) Affected ADs This AD affects AD 82-24-03, Amendment 39-4496 (47 FR 51099, November 12, 1982) (``AD 82-24-03'') and AD 2005-08-15, Amendment 39-14067 (70 FR 21136, April 25, 2005) (``AD 2005-08-15''). (c) Applicability This AD applies to all The Boeing Company Model 707-100 Long Body, -200, -100B Long Body, and -100B Short Body series airplanes; Model 707-300, -300B, -300C, and -400 series airplanes; and Model 720 and 720B series airplanes; certificated in any category. (d) Subject Air Transport Association (ATA) of America Code 54, Nacelles/ pylons. (e) Unsafe Condition This AD was prompted by a report indicating that a fracture of the midspar fitting resulted in the separation of the [[Page 48929]] inboard strut and engine from the airplane, and a determination that existing inspections for other nacelle strut fittings are not sufficient for timely detection of cracking. We are issuing this AD to address cracks, which if not detected and corrected, could grow beyond a critical length, allowing the strut fitting to fail and reducing the structural integrity of the nacelle. This, in combination with damage to adjacent attachment structure, could result in the loss of an engine from the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Repetitive Detailed Inspections of the Front Spar Fittings at Nacelle Struts Numbers 1, 2, 3, and 4 Prior to the accumulation of 3,500 total flight hours; within 700 flight hours after the most recent inspection specified in Boeing 707 Alert Service Bulletin A3514, dated July 29, 2004, was done; or within three months after the effective date of this AD; whichever occurs later: Do a detailed inspection for cracking of the front spar fittings at nacelle struts numbers 1, 2, 3, and 4, in accordance with the Accomplishment Instructions of Boeing 707 Alert Service Bulletin A3514, Revision 1, dated November 9, 2016. If any cracking is found, before further flight, replace the affected fitting, in accordance with the Accomplishment Instructions of Boeing 707 Alert Service Bulletin A3514, Revision 1, dated November 9, 2016. Repeat the inspections thereafter at intervals not to exceed 700 flight hours. (h) Repetitive Surface High Frequency Eddy Current (HFEC) Inspections of the Aft Lugs on the Front Spar Fittings at Nacelle Struts Numbers 1, 2, 3, and 4 Within 1,500 flight cycles or 48 months after the most recent detailed inspection required by paragraph (g) of this AD was done, whichever occurs first, do a surface HFEC inspection for cracking of the aft lugs on the front spar fittings at nacelle struts numbers 1, 2, 3, and 4, and do all applicable corrective actions, in accordance with the Accomplishment Instructions of Boeing 707 Alert Service Bulletin A3514, Revision 1, dated November 9, 2016, except as required by paragraph (l)(4) of this AD. Do all applicable corrective actions before further flight. Repeat the inspection thereafter at intervals not to exceed 1,500 flight cycles or 48 months, whichever occurs first. (i) Repetitive Inspections of the Overwing Support Fitting at Nacelle Struts Numbers 1, 2, 3, and 4 At the times specified in paragraph 1.E., ``Compliance,'' of Boeing 707 Alert Service Bulletin A3365, Revision 3, dated March 9, 2017, except as required by paragraph (l)(1) of this AD: Do the inspections specified in paragraphs (i)(1) through (i)(3) of this AD and do all applicable related investigative and corrective actions, in accordance with the Accomplishment Instructions of Boeing 707 Alert Service Bulletin A3365, Revision 3, dated March 9, 2017, except as required by paragraph (l)(3) of this AD. Do all applicable related investigative and corrective actions before further flight. Repeat the inspections thereafter at the applicable time specified in paragraph 1.E., ``Compliance,'' of Boeing 707 Alert Service Bulletin A3365, Revision 3, dated March 9, 2017. (1) Do a detailed inspection for any crack at all five holes in the overwing support fitting, and at the flange radii. (2) Do the inspection specified in paragraph (i)(2)(i) or (i)(2)(ii) of this AD. (i) Do a surface HFEC inspection for any crack in the overwing support fitting around the hole immediately forward of the spar chord, with the bolt in place, and at the flange radii. (ii) Do an open hole HFEC inspection for any crack in the overwing support fitting at the hole immediately forward of the spar chord. (3) Do the inspection specified in paragraph (i)(3)(i) or (i)(3)(ii) of this AD. (i) Do an ultrasonic inspection for any crack in the overwing support fitting around the four holes common to the fitting and the spar chord, with the bolts in place. (ii) Do a surface HFEC inspection for any crack in the overwing support fitting around the four holes common to the fitting and the spar chord, with the bolts in place. (j) Inspections of the Nacelle Strut Diagonal Braces and Associated Fittings For airplanes with nacelle strut diagonal braces and associated fittings which have accumulated 7,500 flight cycles or more: At the applicable times specified in paragraph 1.E., ``Compliance'' of Boeing 707 Alert Service Bulletin A3364, Revision 4, dated February 21, 2017, except as required by paragraph (l)(2) of this AD, do the inspections specified in paragraphs (j)(1) through (j)(3) of this AD. Repeat the inspections thereafter at the applicable intervals specified in tables 1, 2, 3, and 4 of paragraph 1.E., ``Compliance,'' of Boeing 707 Alert Service Bulletin A3364, Revision 4, dated February 21, 2017. If any crack is found during any inspection required by this paragraph, before further flight, do all applicable corrective actions, in accordance with the Accomplishment Instructions of Boeing 707 Alert Service Bulletin A3364, Revision 4, dated February 21, 2017, except as required by paragraph (l)(3) of this AD. (1) Do a detailed inspection of the nacelle strut diagonal brace end fittings, diagonal brace tube, forward mating fitting, and aft mating fitting for any crack. (2) Do HFEC inspections of the nacelle strut diagonal brace end fittings, forward mating fitting, and aft mating fitting for any crack. As an alternative for the aft mating fitting, do a dye penetrant inspection of vertical webs on aft mating fitting for any crack. (3) Do an HFEC inspection of the diagonal brace tube for any crack. (k) Replacement For Group 3, 4, and 6 airplanes as identified in Boeing 707 Alert Service Bulletin A3364, Revision 4, dated February 21, 2017, on which the outboard diagonal brace end fitting (forward or aft) attach holes have been oversized as specified in Boeing 707 Alert Service Bulletin A3364, Revision 3, dated May 29, 1981: Within 1,000 flight cycles after the effective date of this AD, replace the diagonal brace assembly, in accordance with Figure 3 of Boeing 707 Alert Service Bulletin A3364, Revision 4, dated February 21, 2017. (l) Exceptions to Service Information Specifications (1) For purposes of determining compliance with the requirements of this AD: Where Boeing 707 Alert Service Bulletin A3365, Revision 3, dated March 9, 2017, uses the phrase ``the Revision 3 date of this service bulletin,'' this AD requires using ``the effective date of this AD.'' (2) For purposes of determining compliance with the requirements of this AD: Where Boeing 707 Alert Service Bulletin A3364, Revision 4, dated February 21, 2017, uses the phrase ``the Revision 4 date of this service bulletin,'' this AD requires using ``the effective date of this AD.'' (3) Where Boeing 707 Alert Service Bulletin A3364, Revision 4, dated February 21, 2017; and Boeing 707 Alert Service Bulletin A3365, Revision 3, dated March 9, 2017; specify contacting Boeing: This AD requires repair using a method approved in accordance with the procedures specified in paragraph (o) of this AD. (4) Where Boeing 707 Alert Service Bulletin A3514, Revision 1, dated November 9, 2016, specifies contacting Boeing for replacement instructions: This AD requires replacement using a method approved in accordance with the procedures specified in paragraph (o) of this AD. (m) Terminating Action for Other ADs (1) Accomplishing the initial inspections required by paragraph (j) of this AD terminates all requirements of AD 82-24-03. (2) Accomplishing the initial inspections required by paragraph (g) of this AD, terminates all requirements of AD 2005-08-15. (n) Parts Installation Prohibition As of the effective date of this AD, no person may install, on any airplane, a front spar fitting having a part number other than the part numbers specified in paragraph 2.C.2. of Boeing 707 Alert Service Bulletin A3514, Revision 1, dated November 9, 2016. (o) 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(s) identified in paragraph (p)(1) of this AD. Information may be emailed to: 9-ANM-LAACO-AMOC-Requests@faa.gov. (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. [[Page 48930]] (3) An AMOC that provides an acceptable level of safety may be used for any repair, modification, replacement, 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, FAA, to make those findings. To be approved, the repair method, modification deviation, replacement deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD. (p) Related Information (1) For more information about this AD, contact Jeffrey Chang, Aerospace Engineer, Propulsion Section, FAA, Los Angeles ACO Branch, 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627- 5263; fax: 562-627-5210; email: jeffrey.chang@faa.gov; or 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 george.garrido@faa.gov. (2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (q)(3) and (q)(4) of this AD. (q) 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 707 Alert Service Bulletin A3364, Revision 4, dated February 21, 2017. (ii) Boeing 707 Alert Service Bulletin A3365, Revision 3, dated March 9, 2017. (iii) Boeing 707 Alert Service Bulletin A3514, Revision 1, dated November 9, 2016. (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 17, 2018. John P. Piccola, Acting Director, System Oversight Division, Aircraft Certification Service. [FR Doc. 2018-20918 Filed 9-27-18; 8:45 am] BILLING CODE 4910-13-P
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DEPARTMENT OF TRANSPORTATION through Friday, except Federal holidays. Request To Clarify Service Information
The AD docket contains this final rule, Used for Oversizing Certain Holes
Federal Aviation Administration the regulatory evaluation, any Boeing requested that we revise
comments received, and other paragraph (k) of the proposed AD to
14 CFR Part 39 information. The address for Docket specify outboard diagonal brace end
[Docket No. FAA–2018–0504; Product Operations (phone: 800–647–5527) is fitting (forward or aft) attach holes that
Identifier 2018–NM–046–AD; Amendment U.S. Department of Transportation, have been oversized as specified in
39–19433; AD 2018–19–32] Docket Operations, M–30, West Boeing 707 Alert Service Bulletin
RIN 2120–AA64 Building Ground Floor, Room W12–140, A3364, ‘‘Revision 3, dated May 29,
1200 New Jersey Avenue SE, 1981,’’ rather than ‘‘Revision 4, dated
Airworthiness Directives; The Boeing Washington, DC 20590. February 21, 2017.’’ Boeing noted that
Company Airplanes FOR FURTHER INFORMATION CONTACT:
Boeing 707 Alert Service Bulletin
A3364, Revision 4, dated February 21,
AGENCY: Federal Aviation Jeffrey Chang, Aerospace Engineer,
2017, does not contain instructions for
Administration (FAA), DOT. Propulsion Section, FAA, Los Angeles
oversizing the attach holes, but instead
ACTION: Final rule. ACO Branch, 3960 Paramount
refers to oversizing done as specified in
Boulevard, Lakewood, CA 90712–4137;
Revision 3. Boeing added that, as
SUMMARY: We are adopting a new phone: 562–627–5263; fax: 562–627– written, the proposed AD would not
airworthiness directive (AD) for all The 5210; email: jeffrey.chang@faa.gov; or require operators to replace a diagonal
Boeing Company Model 707, 720, and George Garrido, Aerospace Engineer, brace assembly with attach holes that
720B series airplanes. This AD was Airframe Section, FAA, Los Angeles were oversized as specified in Boeing
prompted by a report indicating that a ACO Branch, 3960 Paramount 707 Alert Service Bulletin A3364,
fracture of the midspar fitting resulted Boulevard, Lakewood, CA 90712–4137; Revision 3, dated May 29, 1981,
in the separation of the inboard strut phone: 562–627–5232; fax: 562–627– potentially allowing an unsafe condition
and engine from the airplane, and a 5210; email george.garrido@faa.gov. to continue.
determination that existing inspections
SUPPLEMENTARY INFORMATION: We agree with the commenter’s
are not sufficient for timely detection of
request. We have revised paragraph (k)
cracking. This AD requires repetitive Discussion of this AD to specify ‘‘. . . outboard
inspections of certain nacelle strut spar
diagonal brace end fitting (forward or
and overwing fittings, and diagonal We issued a notice of proposed
aft) attach holes have been oversized as
braces and associated fittings; rulemaking (NPRM) to amend 14 CFR specified in Boeing 707 Alert Service
replacement of the diagonal brace part 39 by adding an AD that would Bulletin A3364, Revision 3, dated May
assembly on certain airplanes; and apply to all The Boeing Company Model 29, 1981.’’
applicable related investigative and 707, 720, and 720B series airplanes. The
corrective actions. We are issuing this NPRM published in the Federal Conclusion
AD to address the unsafe condition on Register on June 7, 2018 (83 FR 26383). We reviewed the relevant data,
these products. The NPRM was prompted by a report considered the comment received, and
DATES: This AD is effective November 2, indicating that a fracture of the midspar determined that air safety and the
2018. fitting resulted in the separation of the public interest require adopting this
The Director of the Federal Register inboard strut and engine from the final rule with the change described
approved the incorporation by reference airplane, and a determination that previously and minor editorial changes.
of certain publications listed in this AD existing inspections are not sufficient We have determined that these minor
as of November 2, 2018. for timely detection of cracking. The changes:
ADDRESSES: For service information NPRM proposed to require repetitive • Are consistent with the intent that
identified in this final rule, contact inspections of certain nacelle strut spar was proposed in the NPRM for
Boeing Commercial Airplanes, and overwing fittings, and diagonal addressing the unsafe condition; and
Attention: Contractual & Data Services braces and associated fittings; • Do not add any additional burden
(C&DS), 2600 Westminster Blvd., MC replacement of the diagonal brace upon the public than was already
110–SK57, Seal Beach, CA 90740–5600; assembly on certain airplanes; and proposed in the NPRM.
telephone 562–797–1717; internet applicable related investigative and We also determined that these
https://www.myboeingfleet.com. You corrective actions. changes will not increase the economic
may view this service information at the We are issuing this AD to address burden on any operator or increase the
FAA, Transport Standards Branch, 2200 cracks, which if not detected and scope of this final rule.
South 216th St., Des Moines, WA. For corrected, could grow beyond a critical Related Service Information Under 1
information on the availability of this length, allowing the strut fitting to fail CFR Part 51
material at the FAA, call 206–231–3195. and reducing the structural integrity of
It is also available on the internet at We reviewed the following service
the nacelle. This, in combination with information.
http://www.regulations.gov by searching
damage to adjacent attachment • Boeing 707 Alert Service Bulletin
for and locating Docket No. FAA–2018–
structure, could result in the loss of an A3364, Revision 4, dated February 21,
0504.
engine from the airplane. 2017. This service information describes
Examining the AD Docket procedures for repetitive detailed
daltland on DSKBBV9HB2PROD with RULES
Comments
You may examine the AD docket on inspections of the diagonal brace tube
the internet at http:// We gave the public the opportunity to for any crack; repetitive detailed
www.regulations.gov by searching for participate in developing this final rule. inspections and high frequency eddy
and locating Docket No. FAA–2018– The following presents the comment current (HFEC) inspections of the
0504; or in person at Docket Operations received on the NPRM and the FAA’s nacelle strut diagonal brace end fittings,
between 9 a.m. and 5 p.m., Monday response. forward mating fitting, and aft mating
VerDate Sep<11>2014 17:35 Sep 27, 2018 Jkt 244001 PO 00000 Frm 00023 Fmt 4700 Sfmt 4700 E:\FR\FM\28SER1.SGM 28SER1](https://thefederalregister.org/doc/83_FR_49116/page/1.svg)
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fitting for any crack; an alternative dye front spar and at the holes for the four This service information is reasonably
penetrant inspection of vertical webs on fasteners attaching the fitting to the available because the interested parties
aft mating fitting for any crack; an HFEC spar, and related investigative and have access to it through their normal
inspection of the diagonal brace tube for corrective actions. course of business or by the means
any crack; and corrective actions. • Boeing 707 Alert Service Bulletin identified in the ADDRESSES section.
• Boeing 707 Alert Service Bulletin A3514, Revision 1, dated November 9,
A3365, Revision 3, dated March 9, 2017. 2016. This service information describes Costs of Compliance
This service information describes procedures for repetitive detailed and
procedures for repetitive detailed, surface HFEC inspections of the front We estimate that this AD affects 65
HFEC, and ultrasonic inspections of the spar fittings at nacelle struts numbers 1, airplanes of U.S. registry. We estimate
overwing support fittings for any crack 2, 3, and 4 for cracks, and replacement the following costs to comply with this
at the bolt hole forward of the wing of cracked front spar fittings. AD:
ESTIMATED COSTS
Action Labor cost Parts cost Cost per product Cost on U.S. operators
Detailed inspections per Service Bulletin 36 work-hours × $85 per hour = $3,060 per $0 $3,060 per inspection $198,900 per inspection
A3364, Revision 4. inspection cycle. cycle. cycle.
HFEC inspections per Service Bulletin A3364, 128 work-hours × $85 per hour = $10,880 per 0 $10,880 per inspection $707,200 per inspection
Revision 4. inspection cycle. cycle. cycle.
Inspections per Service Bulletin A3365, Revi- 20 work-hours × $85 per hour = $1,700 per 0 $1,700 per inspection $110,500 per inspection
sion 3. inspection cycle. cycle. cycle.
Detailed inspections per Service Bulletin 12 work-hours × $85 per hour = $1,020 per 0 $1,020 per inspection $66,300 per inspection
A3514, Revision 1. inspection cycle. cycle. cycle.
HFEC inspections per Service Bulletin A3514, 32 work-hours × $85 per hour = $2,720 per 0 $2,720 per inspection $176,800 per inspection
Revision 1. inspection cycle. cycle. cycle.
We estimate that any necessary of ADs is normally a function of the the FAA amends 14 CFR part 39 as
replacement of affected fittings would Compliance and Airworthiness follows:
take about 96 work-hours for a cost of Division, but during this transition
$8,160 per fitting. We have received no period, the Executive Director has PART 39—AIRWORTHINESS
definitive data on the parts costs of the delegated the authority to issue ADs DIRECTIVES
affected fittings. We have no way of applicable to transport category
■ 1. The authority citation for part 39
determining the number of aircraft that airplanes and associated appliances to
continues to read as follows:
might need this replacement. the Director of the System Oversight
We have received no definitive data Division. Authority: 49 U.S.C. 106(g), 40113, 44701.
that would enable us to provide cost Regulatory Findings § 39.13 [Amended]
estimates for the on-condition actions
specified in this AD. This AD will not have federalism ■ 2. The FAA amends § 39.13 by adding
implications under Executive Order the following new airworthiness
Authority for This Rulemaking 13132. This AD will not have a directive (AD):
Title 49 of the United States Code substantial direct effect on the States, on 2018–19–32 The Boeing Company:
specifies the FAA’s authority to issue the relationship between the national Amendment 39–19433; Docket No.
rules on aviation safety. Subtitle I, government and the States, or on the FAA–2018–0504; Product Identifier
section 106, describes the authority of distribution of power and 2018–NM–046–AD.
the FAA Administrator. Subtitle VII: responsibilities among the various (a) Effective Date
Aviation Programs, describes in more levels of government. This AD is effective November 2, 2018.
detail the scope of the Agency’s For the reasons discussed above, I
authority. certify that this AD: (b) Affected ADs
We are issuing this rulemaking under (1) Is not a ‘‘significant regulatory This AD affects AD 82–24–03, Amendment
the authority described in Subtitle VII, action’’ under Executive Order 12866, 39–4496 (47 FR 51099, November 12, 1982)
Part A, Subpart III, Section 44701: (2) Is not a ‘‘significant rule’’ under (‘‘AD 82–24–03’’) and AD 2005–08–15,
DOT Regulatory Policies and Procedures Amendment 39–14067 (70 FR 21136, April
‘‘General requirements.’’ Under that 25, 2005) (‘‘AD 2005–08–15’’).
section, Congress charges the FAA with (44 FR 11034, February 26, 1979),
(3) Will not affect intrastate aviation (c) Applicability
promoting safe flight of civil aircraft in
in Alaska, and This AD applies to all The Boeing
air commerce by prescribing regulations (4) Will not have a significant
for practices, methods, and procedures Company Model 707–100 Long Body, –200,
economic impact, positive or negative, –100B Long Body, and –100B Short Body
the Administrator finds necessary for on a substantial number of small entities series airplanes; Model 707–300, –300B,
safety in air commerce. This regulation under the criteria of the Regulatory –300C, and –400 series airplanes; and Model
is within the scope of that authority Flexibility Act. 720 and 720B series airplanes; certificated in
because it addresses an unsafe condition any category.
that is likely to exist or develop on List of Subjects in 14 CFR Part 39
(d) Subject
products identified in this rulemaking
daltland on DSKBBV9HB2PROD with RULES
Air transportation, Aircraft, Aviation
action. Air Transport Association (ATA) of
safety, Incorporation by reference, America Code 54, Nacelles/pylons.
This AD is issued in accordance with Safety.
authority delegated by the Executive (e) Unsafe Condition
Director, Aircraft Certification Service, Adoption of the Amendment
This AD was prompted by a report
as authorized by FAA Order 8000.51C. Accordingly, under the authority indicating that a fracture of the midspar
In accordance with that order, issuance delegated to me by the Administrator, fitting resulted in the separation of the
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![48930 Federal Register / Vol. 83, No. 189 / Friday, September 28, 2018 / Rules and Regulations
(3) An AMOC that provides an acceptable DEPARTMENT OF TRANSPORTATION information. The address for Docket
level of safety may be used for any repair, Operations (phone: 800–647–5527) is
modification, replacement, or alteration Federal Aviation Administration U.S. Department of Transportation,
required by this AD if it is approved by the Docket Operations, M–30, West
Boeing Commercial Airplanes Organization 14 CFR Part 39 Building Ground Floor, Room W12–140,
Designation Authorization (ODA) that has
been authorized by the Manager, Los Angeles [Docket No. FAA–2018–0491; Product 1200 New Jersey Avenue SE,
ACO Branch, FAA, to make those findings. Identifier 2017–NM–158–AD; Amendment Washington, DC 20590.
To be approved, the repair method, 39–19432; AD 2018–19–31] FOR FURTHER INFORMATION CONTACT: Dan
modification deviation, replacement
RIN 2120–AA64
Rodina, Aerospace Engineer,
deviation, or alteration deviation must meet International Section, Transport
the certification basis of the airplane, and the Standards Branch, FAA, 2200 South
approval must specifically refer to this AD.
Airworthiness Directives; Airbus SAS
Airplanes 216th St., Des Moines, WA 98198;
(p) Related Information phone and fax: 206–231–3225.
AGENCY: Federal Aviation SUPPLEMENTARY INFORMATION:
(1) For more information about this AD,
contact Jeffrey Chang, Aerospace Engineer, Administration (FAA), Department of
Propulsion Section, FAA, Los Angeles ACO Transportation (DOT). Discussion
Branch, 3960 Paramount Boulevard, ACTION: Final rule. We issued a notice of proposed
Lakewood, CA 90712–4137; phone: 562–627– rulemaking (NPRM) to amend 14 CFR
5263; fax: 562–627–5210; email: SUMMARY: We are adopting a new part 39 by adding an AD that would
jeffrey.chang@faa.gov; or George Garrido, airworthiness directive (AD) for all apply to all Airbus SAS Model A310
Aerospace Engineer, Airframe Section, FAA, Airbus SAS Model A310 series series airplanes. The NPRM published
Los Angeles ACO Branch, 3960 Paramount airplanes. This AD was prompted by a
Boulevard, Lakewood, CA 90712–4137;
in the Federal Register on June 1, 2018
determination that new or more (83 FR 25412). The NPRM was
phone: 562–627–5232; fax: 562–627–5210; restrictive maintenance requirements
email george.garrido@faa.gov. prompted by a determination that new
and airworthiness limitations are or more restrictive maintenance
(2) Service information identified in this
AD that is not incorporated by reference is necessary. This AD requires revising the requirements and airworthiness
available at the addresses specified in maintenance or inspection program, as limitations are necessary. The NPRM
paragraphs (q)(3) and (q)(4) of this AD. applicable, to incorporate new or more proposed to require revising the
restrictive maintenance requirements maintenance or inspection program, as
(q) Material Incorporated by Reference
and airworthiness limitations. We are applicable, to incorporate new or more
(1) The Director of the Federal Register issuing this AD to address the unsafe
approved the incorporation by reference
restrictive maintenance requirements
condition on these products. and airworthiness limitations.
(IBR) of the service information listed in this
paragraph under 5 U.S.C. 552(a) and 1 CFR DATES: This AD is effective November 2, We are issuing this AD to address
part 51. 2018. prevent fatigue cracking, damage, or
(2) You must use this service information The Director of the Federal Register corrosion in principal structural
as applicable to do the actions required by approved the incorporation by reference elements, which could result in reduced
this AD, unless the AD specifies otherwise. of a certain publication listed in this AD structural integrity of the airplane.
(i) Boeing 707 Alert Service Bulletin as of November 2, 2018. The European Aviation Safety Agency
A3364, Revision 4, dated February 21, 2017. (EASA), which is the Technical Agent
ADDRESSES: For service information
(ii) Boeing 707 Alert Service Bulletin for the Member States of the European
A3365, Revision 3, dated March 9, 2017.
identified in this final rule, contact
Airbus SAS, Airworthiness Office— Union, has issued EASA AD 2017–0206,
(iii) Boeing 707 Alert Service Bulletin
A3514, Revision 1, dated November 9, 2016. EAW, Rond-Point Emile Dewoitine No: dated October 12, 2017 (referred to after
(3) For service information identified in 2, 31700 Blagnac Cedex, France; phone: this as the Mandatory Continuing
this AD, contact Boeing Commercial +33 5 61 93 36 96; fax: +33 5 61 93 44 Airworthiness Information, or ‘‘the
Airplanes, Attention: Contractual & Data 51; email: account.airworth-eas@ MCAI’’), to correct an unsafe condition
Services (C&DS), 2600 Westminster Blvd., airbus.com; internet: http:// for all Airbus Model A310 series
MC 110–SK57, Seal Beach, CA 90740–5600; www.airbus.com. You may view this airplanes. The MCAI states:
telephone 562–797–1717; internet https:// service information at the FAA, The airworthiness limitations for the
www.myboeingfleet.com.
Transport Standards Branch, 2200 Airbus A310 aeroplanes, which are approved
(4) You may view this service information
South 216th St., Des Moines, WA. For by EASA, are currently defined and
at the FAA, Transport Standards Branch, published in the Airbus A310 Airworthiness
2200 South 216th St., Des Moines, WA. For information on the availability of this
material at the FAA, call 206–231–3195. Limitations Section (ALS) documents. The
information on the availability of this Damage Tolerant Airworthiness Limitation
material at the FAA, call 206–231–3195. It is also available on the internet at
Items are specified in the A310 ALS Part 2.
(5) You may view this service information http://www.regulations.gov by searching These instructions have been identified as
that is incorporated by reference at the for and locating Docket No. FAA–2018– mandatory for continuing airworthiness.
National Archives and Records 0491. Failure to accomplish these instructions
Administration (NARA). For information on could result in an unsafe condition.
the availability of this material at NARA, call Examining the AD Docket
EASA previously issued AD 2016–0217
202–741–6030, or go to: http:// You may examine the AD docket on [which corresponds to FAA AD 2017–21–08,
www.archives.gov/federal-register/cfr/ibr- Amendment 39–19079 (82 FR 48904, October
the internet at http://
locations.html. 23, 2017) (‘‘AD 2017–21–08’’)] to require
www.regulations.gov by searching for
Issued in Des Moines, Washington, on and locating Docket No. FAA–2018– compliance with the maintenance
daltland on DSKBBV9HB2PROD with RULES
September 17, 2018. 0491; or in person at Docket Operations requirements and associated airworthiness
John P. Piccola, limitations defined in Airbus A310 ALS Part
between 9 a.m. and 5 p.m., Monday 2 Revision 01, Variation 1.1 and Variation
Acting Director, System Oversight Division, through Friday, except Federal holidays. 1.2.
Aircraft Certification Service. The AD docket contains this final rule, Since that [EASA] AD was issued, new or
[FR Doc. 2018–20918 Filed 9–27–18; 8:45 am] the regulatory evaluation, any more restrictive maintenance requirements
BILLING CODE 4910–13–P comments received, and other and associated airworthiness limitations
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Document Created: 2018-09-28 01:23:15
Document Modified: 2018-09-28 01:23:15
| 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 | Rules and Regulations | |
| Action | Final rule. | |
| Dates | This AD is effective November 2, 2018. | |
| Contact | Jeffrey Chang, Aerospace Engineer, Propulsion Section, FAA, Los Angeles ACO Branch, 3960 Paramount Boulevard, Lakewood, CA 90712-4137; phone: 562-627-5263; fax: 562-627- 5210; email: [email protected]; or 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] | |
| FR Citation | 83 FR 48927 | |
| RIN Number | 2120-AA64 | |
| CFR Associated | Air Transportation; Aircraft; Aviation Safety; Incorporation by Reference and Safety |
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