2017-11-09: Fuselage

Adoption of the Amendment Accordingly, under the authority delegated to me by the Administrator, the FAA amends 14 CFR part 39 as follows: PART 39--AIRWORTHINESS DIRECTIVES 0 1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. Sec. 39.13 [Amended] 0 2. The FAA amends Sec. 39.13 by removing Airworthiness Directive (AD) 2017-08-07, Amendment 39-18856 (82 FR 18084, April 17, 2017), and adding the following new AD: 2017-11-09 Learjet, Inc.: Amendment 39-18908; Docket No. FAA-2017- 0501; Directorate Identifier 2017-NM-053-AD. (a) Effective Date This AD is effective May 30, 2017. (b) Affected ADs This AD replaces AD 2017-08-07, Amendment 39-18856 (82 FR 18084, April 17, 2017) (``AD 2017-08-07''). (c) Applicability This AD applies to Learjet, Inc., Model 60 airplanes, certificated in any category, having serial numbers 60-002 through 60-430 inclusive, and having a configuration identified in paragraph (c)(1) or (c)(2) of this AD. (1) Airplanes with a dorsal-mounted oxygen bottle. (2) Airplanes that have had the dorsal-mounted oxygen bottle removed but have retained the oxygen line fairing installed on top of the fuselage. (d) Subject Air Transport Association (ATA) of America Code 53, Fuselage. (e) Unsafe Condition This AD was prompted by an evaluation by the design approval holder indicating that the upper fuselage skin under the aft oxygen line fairing is subject to multi-site damage. We are issuing this AD to detect and correct corrosion of the fuselage skin, which could result in reduced structural integrity of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Retained Inspection of the Fuselage Skin, and Related Investigative and Corrective Actions, With No Changes This paragraph restates the requirements of paragraph (g) ofAD 2017-08-07, with no changes. At the applicable time specified in paragraph (g)(1), (g)(2), or (g)(3) of this AD: Do a fluorescent dye penetrant inspection of the fuselage skin between stringers (S)-2L and S-2R for corrosion; and do all applicable related investigative and corrective actions; in accordance with the Accomplishment Instructions of Learjet 60 Service Bulletin 60-53-19, Revision 3, dated August 29, 2016, except as required by paragraph (h) of this AD. Do all applicable related investigative and corrective actions before further flight. (1) For airplanes with more than 12 years since the date of issuance of the original airworthiness certificate or the date of issuance of the original export certificate of airworthiness as of May 22, 2017 (the effective date of AD 2017-08-07): Within 12 months after May 22, 2017. (2) For airplanes with more than 6 years but equal to or less than 12 years since the date of issuance of the original airworthiness certificate or the date of issuance of the original export certificate of airworthiness as of May 22, 2017 (the effective date of AD 2017-08-07): Within 24 months after May 22, 2017. (3) For airplanes with 6 years or less since the date of issuance of the original airworthiness certificate or the date of issuance of the original export certificate of airworthiness as of May 22, 2017 (the effective date of AD 2017-08-07): Within 36 months after May 22, 2017. (h) Retained Service Information Exception, With No Changes This paragraph restates the requirements of paragraph (h) of AD 2017-08-07, with no changes. Where Learjet 60 Service Bulletin 60- 53-19, Revision 3, dated August 29, 2016, specifies contacting Learjet, Inc., for appropriate action: Before further flight, repair using a method approved in accordance with the procedures specified in paragraph (l) of this AD. (i) Retained Reporting, With No Changes This paragraph restates the requirements of paragraph (i) of AD 2017-08-07,with no changes. At the applicable time specified in paragraph (i)(1) or (i)(2) of this AD: Submit a report of the findings (both positive and negative) of the inspection required by the introductory text of paragraph (g) of this AD to: Wichita-COS@faa.gov; or Ann Johnson, Wichita Aircraft Certification Office (ACO), 1801 Airport Road, Wichita, KS 67209. The report must include the name of the owner, the address of the owner, the name of the organization incorporating Learjet 60 Service Bulletin 60-53-19, the date that inspection was completed, the name of the person submitting the report, the address, telephone number, and email of the person submitting the report, the airplane serial number, the total time (flight hours) on the airplane, the total number of landings on the airplane, whether corrosion was detected, whether corrosion was repaired, the structural repair manual (SRM) chapter and revision used (if repaired), and whether corrosion exceeded the minimum thickness specifiedin Learjet 60 Service Bulletin 60-53-19 (and specify the SRM chapter and revision, if used as an aid to determine minimum thickness). (1) If the inspection was done on or after May 22, 2017 (the effective date of AD 2017-08-07): Submit the report within 30 days after the inspection. (2) If the inspection was done before May 22, 2017 (the effective date of AD 2017-08-07): Submit the report within 30 days after May 22, 2017. (j) Retained Credit for Previous Actions, With No Changes This paragraph restates the credit provided in paragraph (j) of AD 2017-08-07, with no [[Page 24465]] 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. (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 beenauthorized 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; 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/ibr-locations.html.