Airworthiness Directives; British Aerospace Regional Aircraft Airplanes, 24465-24468 [2017-10408]

Download as PDF Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Rules and Regulations changes. This paragraph provides credit for the actions specified in the introductory text to paragraph (g) of this AD, if those actions were performed before May 22, 2017 (the effective date of AD 2017–08–07), using Learjet 60 Service Bulletin 60–53–19, dated November 23, 2015; Learjet 60 Service Bulletin 60–53–19, Revision 1, dated April 4, 2016; or Learjet 60 Service Bulletin 60–53– 19, Revision 2, dated April 18, 2016. sradovich on DSK3GMQ082PROD with RULES (k) Paperwork Reduction Act Burden Statement A federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120–0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES–200. (l) Alternative Methods of Compliance (AMOCs) (1) The Manager, Wichita ACO, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or local Flight Standards District Office, as appropriate. If sending information directly to the manager of the ACO, send it to the attention of the person identified in paragraph (m)(1) of this AD. (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 a Learjet, Inc., Designated Engineering Representative (DER), or a Unit Member (UM) of the Learjet Organization Designation Authorization (ODA), that has been authorized by the Manager, Wichita ACO, to make those findings. To be approved, the repair, 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 2017–08–07 are approved as AMOCs for the corresponding provisions of this AD. (m) Related Information (1) For more information about this AD, contact Paul Chapman, Aerospace Engineer, Airframe Branch, ACE–118W, FAA, Wichita ACO, 1801 Airport Road, Room 100, Dwight D. Eisenhower Airport, Wichita, KS 67209; VerDate Sep<11>2014 17:28 May 26, 2017 Jkt 241001 phone: 316–946–4152; fax: 316–946–4107; email: Wichita-COS@faa.gov. (2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (n)(4) and (n)(5) of this AD. (n) 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. (3) The following service information was approved for IBR on May 22, 2017 (82 FR 18084, April 17, 2017). (i) Learjet 60 Service Bulletin 60–53–19, Revision 3, dated August 29, 2016. (ii) Reserved. (4) For Learjet, Inc., service information identified in this AD, contact Learjet, Inc., One Learjet Way, Wichita, KS 67209–2942; telephone: 316–946–2000; fax: 316–946– 2220; email: ac.ict@aero.bombardier.com; Internet: http://www.bombardier.com. (5) You may view this service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221. (6) 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/ibrlocations.html. Issued in Renton, Washington, on May 18, 2017. Michael Kaszycki, Acting Manager, Transport Airplane Directorate, Aircraft Certification Service. [FR Doc. 2017–10786 Filed 5–26–17; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2017–0053; Directorate Identifier 2016–CE–037–AD; Amendment 39–18888; AD 2017–10–14] RIN 2120–AA64 Airworthiness Directives; British Aerospace Regional Aircraft Airplanes Federal Aviation Administration (FAA), Department of Transportation (DOT). ACTION: Final rule. AGENCY: We are superseding Airworthiness Directive (AD) 2014–07– 07 for British Aerospace Regional Aircraft Model HP 137 Jetstream MK1, SUMMARY: PO 00000 Frm 00011 Fmt 4700 Sfmt 4700 24465 Jetstream Series 200, and Jetstream Series 3101 airplanes. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as cracking of the forward main landing gear yoke pintle resulting from corrosion pits leading to stress corrosion cracking. We are issuing this AD to require actions to address the unsafe condition on these products. DATES: This AD is effective July 5, 2017. The Director of the Federal Register approved the incorporation by reference of a certain publications listed in the AD as of July 5, 2017. ADDRESSES: You may examine the AD docket on the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2017– 0053; or in person at the Docket Management Facility, U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590. For service information identified in this AD, BAE Systems (Operations) Ltd, Customer Information Department, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom; phone: +44 1292 675207; fax: +44 1292 675704; email: RApublications@baesystems.com; Internet: http:// www.jetstreamcentral.com. You may view this referenced service information at the FAA, Small Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the FAA, call (816) 329–4148. It is also available on the Internet at http:// www.regulations.gov by searching for Docket No. FAA–2017–0053. FOR FURTHER INFORMATION CONTACT: Doug Rudolph, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329– 4059; fax: (816) 329–4090; email: doug.rudolph@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 British Aerospace Regional Aircraft Model HP 137 Jetstream MK1, Jetstream Series 200, and Jetstream Series 3101 airplanes. That NPRM was published in the Federal Register on February 17, 2017 (82 FR 10973), and proposed to supersede AD 2014–07–07, E:\FR\FM\30MYR1.SGM 30MYR1 24466 Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Rules and Regulations sradovich on DSK3GMQ082PROD with RULES Amendment 39–17821 (79 FR 23897; April 29, 2014) (‘‘2014–07–07’’). The NPRM proposed to correct an unsafe condition for the specified products and was based on mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country. The MCAI states that: For the reasons described above, this [EASA] AD retains the requirements of EASA AD 2013–0208, which is superseded, and requires MLG inspections in accordance with the improved procedure. Prompted by occurrences of the main landing gear (MLG) yoke pintle housing cracking, the Civil Aviation Authority (CAA) UK issued AD 003–01–86 to require repetitive inspections to detect cracks in the yoke pintle housing on MLG fitted to Jetstream 3100 aeroplanes in accordance with BAE Systems (Operations) Ltd Service Bulletin (SB) 32–A–JA851226, and, depending on findings, corrective action. After that AD was issued, an occurrence was reported of Jetstream 3100 MLG failure after landing. The subsequent investigation revealed stress corrosion cracking of the MLG yoke pintle housing to have caused this MLG failure. Furthermore, the investigation report recommended a review of the effectiveness of CAA UK AD 003–01–86 in finding cracks in the yoke pintle housing on MLG fitted to Jetstream 3100 aeroplanes. Degradation of the surface protection by abrasion can occur when the forward face of the yoke pintle rotates against the pintle bearing, which introduces corrosion pits and, consequently, stress corrosion cracking. This condition, if not detected and corrected, could lead to structural failure of the MLG, possibly resulting in loss of control of the aeroplane during take-off or landing runs. To provide protection of the affected area of the MLG assembly spigot housing, BAE Systems (Operations) Ltd issued SB 32– JM7862 to provide instructions for installation of a protective washer, fitted at the forward spigot on both left hand and right hand MLG. Consequently, BAE Systems (Operations) Ltd issued SB 32–A–JA851226 Revision 05 to provide additional accomplishment instructions for a Nondestructive testing (NDT) inspection of MLG equipped with the protective washer installed in accordance with BAE Systems (Operations) Ltd SB 32–JM7862. Consequently, EASA issued AD 2013– 0208, retaining the requirements of CAA UK AD 003–01–86, which was superseded, and required implementation of revised inspection requirements, and, depending on findings, accomplishment of applicable corrective action(s). That AD also introduced an optional modification, which constituted terminating action for the inspections required by that AD. Since that AD was issued, BAE Systems (Operations) Ltd has determined that the existing inspection procedure may not be effective in identifying stress corrosion cracking in the pintle housing. Consequently BAE Systems (Operations) Ltd has published an improved inspection procedure in SB 32– A–JA851226 Revision 07. This improved inspection procedure has the ability to detect smaller corrosion pits and cracks that are proximate in size to those that will initiate stress corrosion. Comments VerDate Sep<11>2014 17:28 May 26, 2017 Jkt 241001 The MCAI can be found in the AD docket on the Internet at: https:// www.regulations.gov/ document?D=FAA-2017-0053-0002. We gave the public the opportunity to participate in developing this AD. We received no comments on the NPRM or on the determination of the cost to the public. Conclusion We reviewed the relevant data and determined that air safety and the public interest require adopting the AD 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 correcting the unsafe condition; and • Do not add any additional burden upon the public than was already proposed in the NPRM. Related Service Information We reviewed British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32–A–JA851226, Revision 7, dated May 25, 2015. The service information describes procedures for nondestructive testing (NDT) and visual inspections of the main landing gear spigot housing for cracks and repair if necessary. 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 of the final rule. Costs of Compliance section 106, describes the authority of the FAA Administrator. ‘‘Subtitle VII: Aviation Programs,’’ describes in more detail the scope of the Agency’s authority. We are issuing this rulemaking under the authority described in ‘‘Subtitle VII, Part A, Subpart III, Section 44701: General requirements.’’ Under that section, Congress charges the FAA with promoting safe flight of civil aircraft in air commerce by prescribing regulations for practices, methods, and procedures the Administrator finds necessary for safety in air commerce. This regulation is within the scope of that authority because it addresses an unsafe condition that is likely to exist or develop on products identified in this rulemaking action. Regulatory Findings We determined that this AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify this AD: (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. Examining the AD Docket We estimate that this AD will affect 26 products of U.S. registry. We also estimate that it would take about 14 work-hours per product to comply with the basic requirements of this AD. The average labor rate is $85 per work-hour. Based on these figures, we estimate this cost of the AD on U.S. operators to be $30,940, or $1,190 per product. In addition, we estimate that any necessary follow-on actions would take about 2 work-hours and require parts costing $5,000, for a cost of $5,170 per product. We have no way of determining the number of products that may need these actions. You may examine the AD docket on the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2017– 0053; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains the NPRM, the regulatory evaluation, any comments received, and other information. The street address for the Docket Office (telephone (800) 647– 5527) is in the ADDRESSES section. Comments will be available in the AD docket shortly after receipt. Authority for This Rulemaking List of Subjects in 14 CFR Part 39 Title 49 of the United States Code specifies the FAA’s authority to issue rules on aviation safety. Subtitle I, Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. PO 00000 Frm 00012 Fmt 4700 Sfmt 4700 E:\FR\FM\30MYR1.SGM 30MYR1 Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Rules and Regulations 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 1. The authority citation for part 39 continues to read as follows: ■ Authority: 49 U.S.C. 106(g), 40113, 44701. § 39.13 [Amended] 2. The FAA amends § 39.13 by removing Amendment 39–17821 (82 FR 23897; April 29, 2014), and adding the following new AD: ■ 2017–10–14 British Aerospace Regional Aircraft: Amendment 39–18888; Docket No. FAA–2017–0053; Directorate Identifier 2016–CE–037–AD. (a) Effective Date This airworthiness directive (AD) becomes effective July 5, 2017. (b) Affected ADs This AD supersedes AD 2014–07–07, Amendment 39–17821 (79 FR 23897, April 29, 2014) (‘‘2014–07–07’’). (c) Applicability This AD applies to British Aerospace (Operations) Limited Model HP.137 Jetstream Mk.1, Jetstream Series 200, and Jetstream Series 3101 airplanes, all serial numbers, certificated in any category. (d) Subject Air Transport Association of America (ATA) Code 32: Landing Gear. sradovich on DSK3GMQ082PROD with RULES (e) Reason This AD was prompted by mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as cracking of the forward main landing gear yoke pintle resulting from corrosion pits which can cause stress corrosion cracking resulting in loss of control during take-off or landing. We are issuing this AD to revise the inspection procedure to detect smaller corrosion pits and cracks that could initiate stress corrosion cracking. (f) Actions and Compliance Unless already done, do the following actions specified in paragraphs (f)(1) through (11) of this AD: (1) For all airplanes: Before or at the next inspection that would have been required by AD 2014–07–07 or within the next 30 days after July 5, 2017 (the effective date of this AD), whichever occurs later, and repetitively thereafter at intervals not to exceed 12 months or 1,200 main landing gear (MLG) flight cycles (FC), whichever occurs first, do a nondestructive testing (NDT) inspection of each MLG assembly cylinder attachment spigot housing following the accomplishment VerDate Sep<11>2014 17:28 May 26, 2017 Jkt 241001 instructions in Heroux Devtek Service Bulletin (SB) 32–19, Revision 7, dated March 16, 2015, as specified in the accomplishment instructions in paragraph 2.B. Part A of British Aerospace Jetstream Series 3100 & 3200 SB 32–A–JA851226, Revision 7, dated May 25, 2015. (2) For all airplanes: Within 300 landings after a heavy or abnormal landing or within 3 months after a heavy or abnormal landing, whichever occurs first, do an NDT inspection of each MLG assembly cylinder attachment spigot housing following the accomplishment instructions in Heroux Devtek Service Bulletin (SB) 32–19, Revision 7, dated March 16, 2015, as specified in the accomplishment instructions in paragraph 2.B. Part A of British Aerospace Jetstream Series 3100 & 3200 SB 32–A–JA851226, Revision 7, dated May 25, 2015. (3) For all airplanes: Within 3 months after accomplishment of the latest NDT inspection required by paragraph (f)(1) of this AD or 300 MLG FC after accomplishment of the latest NDT inspection required by paragraph (f)(1) of this AD, whichever occurs first, and repetitively thereafter at intervals not to exceed 3 months or within 300 MLG FC, whichever occurs first, do a visual inspection of each MLG following the accomplishment instructions in paragraph 2.B. Part B of British Aerospace Jetstream Series 3100 & 3200 SB 32–A–JA851226, Revision 7, dated May 25, 2015. These inspections start over after every repetitive NDT inspection required by paragraph (f)(1)of this AD. (4) For all airplanes with a MLG incorporating a microswitch hole: Within the next 10,600 MLG FC since new and repetitively thereafter at intervals not to exceed 1,200 MLG flight cycles, do an NDT inspection of each MLG microswitch hole following the accomplishment instructions in paragraph 2.B. Part C of British Aerospace Jetstream Series 3100 & 3200 SB 32–A– JA851226, Revision 7, dated May 25, 2015. (5) For all airplanes: If any discrepancy is found during any NDT inspection required in paragraphs (f)(1), (2), or (4) of this AD, before further flight, take all necessary corrective actions following the instructions in British Aerospace Jetstream Series 3100 & 3200 SB 32–A–JA851226, Revision 7, dated May 25, 2015. (6) For all airplanes: If any discrepancy is found during any visual inspection required in paragraph (f)(3) of this AD, before further flight, take all necessary corrective actions following the instructions in British Aerospace Jetstream Series 3100 & 3200 SB 32–A–JA851226, Revision 7, dated May 25, 2015. (7) For all airplanes: Doing all necessary corrective actions required in paragraphs (f)(5) or (6) of this AD does not constitute terminating action for the inspections required by this AD. (8) For all airplanes: Modification of each MLG cylinder following BAE Systems (Operations) Ltd. SB 32–JA880340 original issue, dated January 6, 1989, constitutes terminating action for the inspections required by this AD for that MLG. (9) For all airplanes: The compliance times in paragraphs (f)(1), (2), (3), and (4) of this AD are presented in flight cycles (landings). PO 00000 Frm 00013 Fmt 4700 Sfmt 4700 24467 If the total flight cycles have not been kept, multiply the total number of airplane hours time-in-service (TIS) by 0.75 to calculate the cycles. For the purposes of this AD: (i) 100 hours TIS × .75 = 75 cycles; and (ii) 1,000 hours TIS × .75 = 750 cycles. (g) Credit for Actions Done in Accordance With Previous Service Information (1) This AD allows credit for the initial inspection required in paragraph (f)(1) of this AD if done before June 3, 2014 (the effective date retained from AD 2014–07–07) following British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32–A– JA851226, Revision 5, dated April 30, 2013. (2) This AD allows credit for the initial inspection required in paragraph (f)(4) of this AD if done before June 3, 2014 (the effective date retained from AD 2014–07–07) following APPH Ltd. Service Bulletin 32–40, at Initial Issue dated June 21, 1989; or APPH Ltd. Service Bulletin 32–40, Revision 1, dated February, 2003. (h) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, Standards Office, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Doug Rudolph, Aerospace Engineer, FAA, Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 64106; telephone: (816) 329–4059; fax: (816) 329– 4090; email: doug.rudolph@faa.gov. Before using any approved AMOC on any airplane to which the AMOC applies, notify your appropriate principal inspector (PI) in the FAA Flight Standards District Office (FSDO), or lacking a PI, your local FSDO. (2) Airworthy Product: For any requirement in this AD to obtain corrective actions from a manufacturer or other source, use these actions if they are FAA-approved. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent). You are required to assure the product is airworthy before it is returned to service. (3) Reporting Requirements: For any reporting requirement in this AD, a federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with a collection of information subject to the requirements of the Paperwork Reduction Act unless that collection of information displays a current valid OMB Control Number. The OMB Control Number for this information collection is 2120–0056. Public reporting for this collection of information is estimated to be approximately 5 minutes per response, including the time for reviewing instructions, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Comments concerning the accuracy of this burden and suggestions for reducing the burden should be directed to the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: Information Collection Clearance Officer, AES–200. E:\FR\FM\30MYR1.SGM 30MYR1 24468 Federal Register / Vol. 82, No. 102 / Tuesday, May 30, 2017 / Rules and Regulations (i) Related Information Refer to MCAI European Aviation Safety Agency (EASA) AD No.: 2016–0224, dated November 9, 2016, for related information. The MCAI can be found in the AD docket on the Internet at: https://www.regulations.gov/ document?D=FAA-2017-0053-0002. (j) 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) British Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32–A–JA851226, Revision 7, dated May 25, 2015. (ii) Heroux Devtek Service Bulletin 32–19, Revision 7, dated March 16, 2015. (3) For British Aerospace Regional Aircraft service information identified in this AD, contact BAE Systems (Operations) Ltd, Customer Information Department, Prestwick International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom; phone: +44 1292 675207, fax: +44 1292 675704; email: RApublications@baesystems.com; Internet: http://www.jetstreamcentral.com. (4) You may review copies of the referenced service information at the FAA, Small Airplane Directorate, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the FAA, call (816) 329–4148. In addition, you can access this service information on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA– 2017–0053. (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/ibrlocations.html. Issued in Kansas City, Missouri, on May 10, 2017. Melvin Johnson, Acting Manager, Small Airplane Directorate, Aircraft Certification Service. [FR Doc. 2017–10408 Filed 5–26–17; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration sradovich on DSK3GMQ082PROD with RULES 14 CFR Part 39 [Docket No. FAA–2016–6667; Directorate Identifier 2015–NM–125–AD; Amendment 39–18882; AD 2017–10–08] RIN 2120–AA64 Airworthiness Directives; The Boeing Company Airplanes Federal Aviation Administration (FAA), DOT. AGENCY: VerDate Sep<11>2014 17:28 May 26, 2017 Jkt 241001 ACTION: Final rule. We are superseding Airworthiness Directive (AD) 2009–21– 01 for certain The Boeing Company Model 737–300 and 737–400 series airplanes. AD 2009–21–01 required repetitive inspections to detect cracking of the aft fuselage skin, and related investigative and corrective actions if necessary. This new AD adds certain inspections, repairs, replacement, related investigative and corrective actions if necessary; and removes certain airplanes from the applicability. This AD was prompted by an evaluation by the design approval holder (DAH) indicating that the aft fuselage skin is subject to widespread fatigue damage (WFD), and by reports of aft fuselage cracking. We are issuing this AD to address the unsafe condition on these products. SUMMARY: Engineer, Airframe Branch, ANM–120L, FAA, Los Angeles Aircraft Certification Office (ACO), 3960 Paramount Boulevard, Lakewood, CA 90712–4137; phone: 562–627–5264; fax: 562–627– 5210; email: jennifer.tsakoumakis@faa.gov. SUPPLEMENTARY INFORMATION: Discussion This AD is effective July 5, 2017. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of July 5, 2017. ADDRESSES: For service information identified in this final rule, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 2600 Westminster Blvd., MC 110–SK57, Seal Beach, CA 90740–5600; telephone 562–797–1717; Internet https://www.myboeingfleet.com. You may view this referenced service information at the FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton, WA. For information on the availability of this material at the FAA, call 425–227–1221. It is also available on the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2016– 6667. We issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 to supersede AD 2009–21–01, Amendment 39–16038 (74 FR 52395, October 13, 2009) (‘‘AD 2009–21–01’’). AD 2009–21–01 applied to certain the Boeing Company Model 737–300 and 737–400 series airplanes. The NPRM published in the Federal Register on May 13, 2016 (81 FR 29802). The NPRM was prompted by an evaluation by the DAH indicating that the aft fuselage skin is subject to WFD, and by reports of aft fuselage cracking. The NPRM proposed to continue to require repetitive inspections to detect cracking of the aft fuselage skin, and related investigative and corrective actions if necessary. The NPRM also proposed to add new aft fuselage skin inspections for cracking, inspections to detect missing or loose fasteners and any disbonding or cracking of bonded doublers, permanent repairs of time-limited repairs, related investigative and corrective actions if necessary, and skin panel replacement. The NPRM also proposed to remove Model 737–400 series airplanes from the applicability. We are issuing this AD to detect and correct cracking in the aft fuselage skin along the longitudinal edges of the chem-milled pockets in the bonded skin doubler, which could result in possible rapid decompression and reduced structural integrity of the airplane. Examining the AD Docket Comments You may examine the AD docket on the Internet at http:// www.regulations.gov by searching for and locating Docket No. FAA–2016– 6667; or in person at the Docket Management Facility between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this AD, the regulatory evaluation, any comments received, and other information. The address for the Docket Office (phone: 800–647–5527) is Docket Management Facility, U.S. Department of Transportation, Docket Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE., Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Jennifer Tsakoumakis, Aerospace We gave the public the opportunity to participate in developing this AD. The following presents the comments received on the NPRM and the FAA’s response to each comment. DATES: PO 00000 Frm 00014 Fmt 4700 Sfmt 4700 Request To Revise the Precipitating Event Statement Boeing requested that we revise the precipitating event statement by including that there have been reports of aft fuselage cracking. Boeing stated that this revision would be consistent with wording of other related rulemaking. We agree with Boeing’s request because it provides additional clarity to the precipitating event statement. We have revised the SUMMARY and Discussion sections, and paragraph (e) of this AD accordingly. E:\FR\FM\30MYR1.SGM 30MYR1

Agencies

[Federal Register Volume 82, Number 102 (Tuesday, May 30, 2017)]
[Rules and Regulations]
[Pages 24465-24468]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2017-10408]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2017-0053; Directorate Identifier 2016-CE-037-AD; 
Amendment 39-18888; AD 2017-10-14]
RIN 2120-AA64


Airworthiness Directives; British Aerospace Regional Aircraft 
Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Final rule.

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SUMMARY: We are superseding Airworthiness Directive (AD) 2014-07-07 for 
British Aerospace Regional Aircraft Model HP 137 Jetstream MK1, 
Jetstream Series 200, and Jetstream Series 3101 airplanes. This AD 
results from mandatory continuing airworthiness information (MCAI) 
issued by an aviation authority of another country to identify and 
correct an unsafe condition on an aviation product. The MCAI describes 
the unsafe condition as cracking of the forward main landing gear yoke 
pintle resulting from corrosion pits leading to stress corrosion 
cracking. We are issuing this AD to require actions to address the 
unsafe condition on these products.

DATES: This AD is effective July 5, 2017.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publications listed in the AD as of July 5, 
2017.

ADDRESSES: You may examine the AD docket on the Internet at http://www.regulations.gov by searching for and locating Docket No. FAA-2017-
0053; or in person at the Docket Management Facility, U.S. Department 
of Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue SE., Washington, DC 20590.
    For service information identified in this AD, BAE Systems 
(Operations) Ltd, Customer Information Department, Prestwick 
International Airport, Ayrshire, KA9 2RW, Scotland, United Kingdom; 
phone: +44 1292 675207; fax: +44 1292 675704; email: 
RApublications@baesystems.com; Internet: http://www.jetstreamcentral.com. You may view this referenced service 
information at the FAA, Small Airplane Directorate, 901 Locust, Kansas 
City, Missouri 64106. For information on the availability of this 
material at the FAA, call (816) 329-4148. It is also available on the 
Internet at http://www.regulations.gov by searching for Docket No. FAA-
2017-0053.

FOR FURTHER INFORMATION CONTACT: Doug Rudolph, Aerospace Engineer, FAA, 
Small Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 
64106; telephone: (816) 329-4059; fax: (816) 329-4090; email: 
doug.rudolph@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 British Aerospace Regional 
Aircraft Model HP 137 Jetstream MK1, Jetstream Series 200, and 
Jetstream Series 3101 airplanes. That NPRM was published in the Federal 
Register on February 17, 2017 (82 FR 10973), and proposed to supersede 
AD 2014-07-07,

[[Page 24466]]

Amendment 39-17821 (79 FR 23897; April 29, 2014) (``2014-07-07'').
    The NPRM proposed to correct an unsafe condition for the specified 
products and was based on mandatory continuing airworthiness 
information (MCAI) originated by an aviation authority of another 
country. The MCAI states that:

    Prompted by occurrences of the main landing gear (MLG) yoke 
pintle housing cracking, the Civil Aviation Authority (CAA) UK 
issued AD 003-01-86 to require repetitive inspections to detect 
cracks in the yoke pintle housing on MLG fitted to Jetstream 3100 
aeroplanes in accordance with BAE Systems (Operations) Ltd Service 
Bulletin (SB) 32-A-JA851226, and, depending on findings, corrective 
action. After that AD was issued, an occurrence was reported of 
Jetstream 3100 MLG failure after landing. The subsequent 
investigation revealed stress corrosion cracking of the MLG yoke 
pintle housing to have caused this MLG failure. Furthermore, the 
investigation report recommended a review of the effectiveness of 
CAA UK AD 003-01-86 in finding cracks in the yoke pintle housing on 
MLG fitted to Jetstream 3100 aeroplanes.
    Degradation of the surface protection by abrasion can occur when 
the forward face of the yoke pintle rotates against the pintle 
bearing, which introduces corrosion pits and, consequently, stress 
corrosion cracking.
    This condition, if not detected and corrected, could lead to 
structural failure of the MLG, possibly resulting in loss of control 
of the aeroplane during take-off or landing runs.
    To provide protection of the affected area of the MLG assembly 
spigot housing, BAE Systems (Operations) Ltd issued SB 32-JM7862 to 
provide instructions for installation of a protective washer, fitted 
at the forward spigot on both left hand and right hand MLG. 
Consequently, BAE Systems (Operations) Ltd issued SB 32-A-JA851226 
Revision 05 to provide additional accomplishment instructions for a 
Non-destructive testing (NDT) inspection of MLG equipped with the 
protective washer installed in accordance with BAE Systems 
(Operations) Ltd SB 32-JM7862.
    Consequently, EASA issued AD 2013-0208, retaining the 
requirements of CAA UK AD 003-01-86, which was superseded, and 
required implementation of revised inspection requirements, and, 
depending on findings, accomplishment of applicable corrective 
action(s). That AD also introduced an optional modification, which 
constituted terminating action for the inspections required by that 
AD.
    Since that AD was issued, BAE Systems (Operations) Ltd has 
determined that the existing inspection procedure may not be 
effective in identifying stress corrosion cracking in the pintle 
housing. Consequently BAE Systems (Operations) Ltd has published an 
improved inspection procedure in SB 32-A-JA851226 Revision 07. This 
improved inspection procedure has the ability to detect smaller 
corrosion pits and cracks that are proximate in size to those that 
will initiate stress corrosion.
    For the reasons described above, this [EASA] AD retains the 
requirements of EASA AD 2013-0208, which is superseded, and requires 
MLG inspections in accordance with the improved procedure.

The MCAI can be found in the AD docket on the Internet at: https://www.regulations.gov/document?D=FAA-2017-0053-0002.

Comments

    We gave the public the opportunity to participate in developing 
this AD. We received no comments on the NPRM or on the determination of 
the cost to the public.

Conclusion

    We reviewed the relevant data and determined that air safety and 
the public interest require adopting the AD 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 correcting the unsafe condition; and
     Do not add any additional burden upon the public than was 
already proposed in the NPRM.

Related Service Information

    We reviewed British Aerospace Jetstream Series 3100 & 3200 Service 
Bulletin 32-A-JA851226, Revision 7, dated May 25, 2015. The service 
information describes procedures for nondestructive testing (NDT) and 
visual inspections of the main landing gear spigot housing for cracks 
and repair if necessary. 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 of the final rule.

Costs of Compliance

    We estimate that this AD will affect 26 products of U.S. registry. 
We also estimate that it would take about 14 work-hours per product to 
comply with the basic requirements of this AD. The average labor rate 
is $85 per work-hour.
    Based on these figures, we estimate this cost of the AD on U.S. 
operators to be $30,940, or $1,190 per product.
    In addition, we estimate that any necessary follow-on actions would 
take about 2 work-hours and require parts costing $5,000, for a cost of 
$5,170 per product. We have no way of determining the number of 
products that may need these actions.

Authority for This Rulemaking

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

Regulatory Findings

    We determined that this AD will not have federalism implications 
under Executive Order 13132. This AD will not have a substantial direct 
effect on the States, on the relationship between the national 
government and the States, or on the distribution of power and 
responsibilities among the various levels of government.
    For the reasons discussed above, I certify this AD:
    (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.

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-2017-
0053; or in person at the Docket Management Facility between 9 a.m. and 
5 p.m., Monday through Friday, except Federal holidays. The AD docket 
contains the NPRM, the regulatory evaluation, any comments received, 
and other information. The street address for the Docket Office 
(telephone (800) 647-5527) is in the ADDRESSES section. Comments will 
be available in the AD docket shortly after receipt.

List of Subjects in 14 CFR Part 39

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

[[Page 24467]]

Adoption of the Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by removing Amendment 39-17821 (82 FR 
23897; April 29, 2014), and adding the following new AD:

2017-10-14 British Aerospace Regional Aircraft: Amendment 39-18888; 
Docket No. FAA-2017-0053; Directorate Identifier 2016-CE-037-AD.

(a) Effective Date

    This airworthiness directive (AD) becomes effective July 5, 
2017.

(b) Affected ADs

    This AD supersedes AD 2014-07-07, Amendment 39-17821 (79 FR 
23897, April 29, 2014) (``2014-07-07'').

(c) Applicability

    This AD applies to British Aerospace (Operations) Limited Model 
HP.137 Jetstream Mk.1, Jetstream Series 200, and Jetstream Series 
3101 airplanes, all serial numbers, certificated in any category.

(d) Subject

    Air Transport Association of America (ATA) Code 32: Landing 
Gear.

(e) Reason

    This AD was prompted by mandatory continuing airworthiness 
information (MCAI) issued by an aviation authority of another 
country to identify and correct an unsafe condition on an aviation 
product. The MCAI describes the unsafe condition as cracking of the 
forward main landing gear yoke pintle resulting from corrosion pits 
which can cause stress corrosion cracking resulting in loss of 
control during take-off or landing. We are issuing this AD to revise 
the inspection procedure to detect smaller corrosion pits and cracks 
that could initiate stress corrosion cracking.

(f) Actions and Compliance

    Unless already done, do the following actions specified in 
paragraphs (f)(1) through (11) of this AD:
    (1) For all airplanes: Before or at the next inspection that 
would have been required by AD 2014-07-07 or within the next 30 days 
after July 5, 2017 (the effective date of this AD), whichever occurs 
later, and repetitively thereafter at intervals not to exceed 12 
months or 1,200 main landing gear (MLG) flight cycles (FC), 
whichever occurs first, do a nondestructive testing (NDT) inspection 
of each MLG assembly cylinder attachment spigot housing following 
the accomplishment instructions in Heroux Devtek Service Bulletin 
(SB) 32-19, Revision 7, dated March 16, 2015, as specified in the 
accomplishment instructions in paragraph 2.B. Part A of British 
Aerospace Jetstream Series 3100 & 3200 SB 32-A-JA851226, Revision 7, 
dated May 25, 2015.
    (2) For all airplanes: Within 300 landings after a heavy or 
abnormal landing or within 3 months after a heavy or abnormal 
landing, whichever occurs first, do an NDT inspection of each MLG 
assembly cylinder attachment spigot housing following the 
accomplishment instructions in Heroux Devtek Service Bulletin (SB) 
32-19, Revision 7, dated March 16, 2015, as specified in the 
accomplishment instructions in paragraph 2.B. Part A of British 
Aerospace Jetstream Series 3100 & 3200 SB 32-A-JA851226, Revision 7, 
dated May 25, 2015.
    (3) For all airplanes: Within 3 months after accomplishment of 
the latest NDT inspection required by paragraph (f)(1) of this AD or 
300 MLG FC after accomplishment of the latest NDT inspection 
required by paragraph (f)(1) of this AD, whichever occurs first, and 
repetitively thereafter at intervals not to exceed 3 months or 
within 300 MLG FC, whichever occurs first, do a visual inspection of 
each MLG following the accomplishment instructions in paragraph 2.B. 
Part B of British Aerospace Jetstream Series 3100 & 3200 SB 32-A-
JA851226, Revision 7, dated May 25, 2015. These inspections start 
over after every repetitive NDT inspection required by paragraph 
(f)(1)of this AD.
    (4) For all airplanes with a MLG incorporating a microswitch 
hole: Within the next 10,600 MLG FC since new and repetitively 
thereafter at intervals not to exceed 1,200 MLG flight cycles, do an 
NDT inspection of each MLG microswitch hole following the 
accomplishment instructions in paragraph 2.B. Part C of British 
Aerospace Jetstream Series 3100 & 3200 SB 32-A-JA851226, Revision 7, 
dated May 25, 2015.
    (5) For all airplanes: If any discrepancy is found during any 
NDT inspection required in paragraphs (f)(1), (2), or (4) of this 
AD, before further flight, take all necessary corrective actions 
following the instructions in British Aerospace Jetstream Series 
3100 & 3200 SB 32-A-JA851226, Revision 7, dated May 25, 2015.
    (6) For all airplanes: If any discrepancy is found during any 
visual inspection required in paragraph (f)(3) of this AD, before 
further flight, take all necessary corrective actions following the 
instructions in British Aerospace Jetstream Series 3100 & 3200 SB 
32-A-JA851226, Revision 7, dated May 25, 2015.
    (7) For all airplanes: Doing all necessary corrective actions 
required in paragraphs (f)(5) or (6) of this AD does not constitute 
terminating action for the inspections required by this AD.
    (8) For all airplanes: Modification of each MLG cylinder 
following BAE Systems (Operations) Ltd. SB 32-JA880340 original 
issue, dated January 6, 1989, constitutes terminating action for the 
inspections required by this AD for that MLG.
    (9) For all airplanes: The compliance times in paragraphs 
(f)(1), (2), (3), and (4) of this AD are presented in flight cycles 
(landings). If the total flight cycles have not been kept, multiply 
the total number of airplane hours time-in-service (TIS) by 0.75 to 
calculate the cycles. For the purposes of this AD:
    (i) 100 hours TIS x .75 = 75 cycles; and
    (ii) 1,000 hours TIS x .75 = 750 cycles.

(g) Credit for Actions Done in Accordance With Previous Service 
Information

    (1) This AD allows credit for the initial inspection required in 
paragraph (f)(1) of this AD if done before June 3, 2014 (the 
effective date retained from AD 2014-07-07) following British 
Aerospace Jetstream Series 3100 & 3200 Service Bulletin 32-A-
JA851226, Revision 5, dated April 30, 2013.
    (2) This AD allows credit for the initial inspection required in 
paragraph (f)(4) of this AD if done before June 3, 2014 (the 
effective date retained from AD 2014-07-07) following APPH Ltd. 
Service Bulletin 32-40, at Initial Issue dated June 21, 1989; or 
APPH Ltd. Service Bulletin 32-40, Revision 1, dated February, 2003.

(h) Other FAA AD Provisions

    The following provisions also apply to this AD:
    (1) Alternative Methods of Compliance (AMOCs): The Manager, 
Standards Office, FAA, has the authority to approve AMOCs for this 
AD, if requested using the procedures found in 14 CFR 39.19. Send 
information to ATTN: Doug Rudolph, Aerospace Engineer, FAA, Small 
Airplane Directorate, 901 Locust, Room 301, Kansas City, Missouri 
64106; telephone: (816) 329-4059; fax: (816) 329-4090; email: 
doug.rudolph@faa.gov. Before using any approved AMOC on any airplane 
to which the AMOC applies, notify your appropriate principal 
inspector (PI) in the FAA Flight Standards District Office (FSDO), 
or lacking a PI, your local FSDO.
    (2) Airworthy Product: For any requirement in this AD to obtain 
corrective actions from a manufacturer or other source, use these 
actions if they are FAA-approved. Corrective actions are considered 
FAA-approved if they are approved by the State of Design Authority 
(or their delegated agent). You are required to assure the product 
is airworthy before it is returned to service.
    (3) Reporting Requirements: For any reporting requirement in 
this AD, a federal agency may not conduct or sponsor, and a person 
is not required to respond to, nor shall a person be subject to a 
penalty for failure to comply with a collection of information 
subject to the requirements of the Paperwork Reduction Act unless 
that collection of information displays a current valid OMB Control 
Number. The OMB Control Number for this information collection is 
2120-0056. Public reporting for this collection of information is 
estimated to be approximately 5 minutes per response, including the 
time for reviewing instructions, completing and reviewing the 
collection of information. All responses to this collection of 
information are mandatory. Comments concerning the accuracy of this 
burden and suggestions for reducing the burden should be directed to 
the FAA at: 800 Independence Ave. SW., Washington, DC 20591, Attn: 
Information Collection Clearance Officer, AES-200.

[[Page 24468]]

(i) Related Information

    Refer to MCAI European Aviation Safety Agency (EASA) AD No.: 
2016-0224, dated November 9, 2016, for related information. The MCAI 
can be found in the AD docket on the Internet at: https://www.regulations.gov/document?D=FAA-2017-0053-0002.

(j) 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) British Aerospace Jetstream Series 3100 & 3200 Service 
Bulletin 32-A-JA851226, Revision 7, dated May 25, 2015.
    (ii) Heroux Devtek Service Bulletin 32-19, Revision 7, dated 
March 16, 2015.
    (3) For British Aerospace Regional Aircraft service information 
identified in this AD, contact BAE Systems (Operations) Ltd, 
Customer Information Department, Prestwick International Airport, 
Ayrshire, KA9 2RW, Scotland, United Kingdom; phone: +44 1292 675207, 
fax: +44 1292 675704; email: RApublications@baesystems.com; 
Internet: http://www.jetstreamcentral.com.
    (4) You may review copies of the referenced service information 
at the FAA, Small Airplane Directorate, 901 Locust, Kansas City, 
Missouri 64106. For information on the availability of this material 
at the FAA, call (816) 329-4148. In addition, you can access this 
service information on the Internet at http://www.regulations.gov by 
searching for and locating Docket No. FAA-2017-0053.
    (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 Kansas City, Missouri, on May 10, 2017.
Melvin Johnson,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 2017-10408 Filed 5-26-17; 8:45 am]
 BILLING CODE 4910-13-P