Airworthiness Directives; Learjet, Inc. Airplanes, 2793-2796 [2019-01500]

Download as PDF Federal Register / Vol. 84, No. 27 / Friday, February 8, 2019 / Proposed Rules (d) Subject Air Transport Association (ATA) of America Code 27, Flight controls. (e) Reason This AD was prompted by a report that a supplier fabricated Teflon parts with a charge of 15 percent fiberglass content instead of the specified 5 percent fiberglass content. We are issuing this AD to address parts manufactured with this higher percentage of fiberglass, which may cause deterioration of control cables and adjacent parts due to greater friction should they come into contact, which could lead to reduced controllability of the airplane. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Inspection Within 50 flight hours after the effective date of this AD: Accomplish a detailed visual inspection of the aileron control systems cables and flap interconnect system cables for disconnected or damaged cables in accordance with paragraph 2.A. of the Accomplishment Instructions of Bombardier Service Bulletin 215–3185, Revision 1, dated January 28, 2014; or Bombardier Service Bulletin 215–4476, Revision 1, dated January 28, 2014; as applicable. Repeat the inspection thereafter at intervals not to exceed 50 flight hours. (h) Corrective Action If any disconnected or damaged (including broken wires, unusual wear, or fraying) cables are found during any inspection required by paragraph (g) of this AD: Before further flight, obtain corrective actions approved by the Manager, New York ACO Branch, FAA; or Transport Canada Civil Aviation (TCCA); or Viking Air Limited’s TCCA Design Approval Organization (DAO). If approved by the DAO, the approval must include the DAO-authorized signature. Accomplish the corrective actions within the compliance time specified therein. If no compliance time is specified in the corrective actions instructions, accomplish the corrective action before further flight. Pmangrum on DSK3GMQ082PROD with PROPOSALS (i) Replacement Within 29 months after the effective date of this AD: Replace the Teflon parts in the aileron control system, the aileron/rudder interconnect, and the aileron power unit beam in accordance with Parts A, B, and C of the Accomplishment Instructions of Bombardier Service Bulletin 215–3186, Revision 3, dated September 29, 2015; or Bombardier Service Bulletin 215–4477, Revision 2, dated September 29, 2015. (j) Terminating Action for Inspections Accomplishing the replacement required by paragraph (i) of this AD on an airplane constitutes terminating action for the inspections required by paragraph (g) of this AD for that airplane. (k) Credit for Previous Actions This paragraph provides credit for actions required by paragraph (i) of this AD, if those VerDate Sep<11>2014 15:12 Feb 07, 2019 Jkt 247001 actions were performed before the effective date of this AD using the service information specified in paragraphs (k)(1) through (k)(5) of this AD. (1) Bombardier Service Bulletin 215–3186, dated September 30, 2013. (2) Bombardier Service Bulletin 215–3186, Revision 1, dated November 26, 2014. (3) Bombardier Service Bulletin 215–3186, Revision 2, dated December 5, 2014. (4) Bombardier Service Bulletin 215–4477, dated September 30, 2013. (5) Bombardier Service Bulletin 215–4477, Revision 1, dated November 26, 2014. (l) No Reporting Requirement Although Bombardier Service Bulletin 215–3185, Revision 1, dated January 28, 2014; Bombardier Service Bulletin 215–3186, Revision 3, dated September 29, 2015; Bombardier Service Bulletin 215–4476, Revision 1, dated January 28, 2014; and Bombardier Service Bulletin 215–4477, Revision 2, dated September 29, 2015; specify to submit certain information to the manufacturer, this AD does not include that requirement. (m) Other FAA AD Provisions The following provisions also apply to this AD: (1) Alternative Methods of Compliance (AMOCs): The Manager, New York 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 ATTN: Program Manager, Continuing Operational Safety, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516–228–7300; fax 516–794–5531. 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. (2) Contacting the Manufacturer: For any requirement in this AD to obtain corrective actions from a manufacturer, the action must be accomplished using a method approved by the Manager, New York ACO Branch, FAA; or TCCA; or Viking Air Limited’s TCCA DAO. If approved by the DAO, the approval must include the DAO-authorized signature. (n) Related Information (1) Refer to Mandatory Continuing Airworthiness Information (MCAI) Canadian AD CF–2018–27, dated October 12, 2018, for related information. This MCAI may be found in the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA–2018–1070. (2) For more information about this AD, contact Darren Gassetto, Aerospace Engineer, Mechanical Systems and Admin Services Section, FAA, New York ACO Branch, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; telephone 516–228–7323; fax 516– 794–5531; email 9-avs-nyaco-cos@faa.gov. (3) For service information identified in this AD, contact Viking Air Limited, 1959 de PO 00000 Frm 00016 Fmt 4702 Sfmt 4702 2793 Havilland Way, Sidney, British Columbia V8L 5V5, Canada; telephone +1–250–656– 7227; fax +1–250–656–0673; email acstechnical.publications@vikingair.com; internet https://www.vikingair.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. Issued in Des Moines, Washington, on January 10, 2019. Jeffrey E. Duven, Director, System Oversight Division, Aircraft Certification Service. [FR Doc. 2019–01524 Filed 2–7–19; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2019–0046; Product Identifier 2018–CE–040–AD] RIN 2120–AA64 Airworthiness Directives; Learjet, Inc. Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to supersede Airworthiness Directive (AD) 2017–11– 09, which applies to certain Learjet, Inc. (Learjet), Model 60 airplanes. AD 2017– 11–09 requires a one-time inspection of the fuselage skin for corrosion and, as necessary, additional related inspections and corrective actions. Since we issued AD 2017–11–09, we identified an error in the fluorescent dye penetrant inspection of the fuselage skin and an ambiguity in the compliance time for the fluorescent dye penetrant inspection. We are proposing this AD to clarify the compliance time and correct an error for the fluorescent dye penetrant inspection of the fuselage skin. DATES: We must receive comments on this proposed AD by March 25, 2019. ADDRESSES: You may send comments, using the procedures found in 14 CFR 11.43 and 11.45, by any of the following methods: • Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments. • Fax: 202–493–2251. • Mail: U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. SUMMARY: E:\FR\FM\08FEP1.SGM 08FEP1 2794 Federal Register / Vol. 84, No. 27 / Friday, February 8, 2019 / Proposed Rules • Hand Delivery: Deliver to Mail address above between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. For service information identified in this NPRM, contact Learjet, Inc., One Learjet Way, Wichita, KS 67209–2942; telephone: 316–946–2000; fax: 316– 946–2220; email: ac.ict@ aero.bombardier.com; internet: https:// www.bombardier.com. You may view this service information at the FAA, Policy and Innovation Division, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the FAA, call (816) 329– 4148. Pmangrum on DSK3GMQ082PROD with PROPOSALS Examining the AD Docket You may examine the AD docket on the internet at https:// www.regulations.gov by searching for and locating Docket No. FAA–2019– 0046; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this NPRM, the regulatory evaluation, any comments received, and other information. The street address for Docket Operations (phone: 800–647–5527) is listed above. Comments will be available in the AD docket shortly after receipt. FOR FURTHER INFORMATION CONTACT: Tara Shawn, Aerospace Engineer, Wichita ACO Branch, 1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946–4141; fax: (316) 946–4107; email: tara.shawn@faa.gov or WichitaCOS@faa.gov. SUPPLEMENTARY INFORMATION: Comments Invited We invite you to send any written relevant data, views, or arguments about this proposed AD. Send your comments to an address listed under the ADDRESSES section. Include ‘‘Docket No. FAA–2019–0046; Product Identifier 2018–CE–040–AD’’ at the beginning of your comments. We specifically invite comments on the overall regulatory, economic, environmental, and energy aspects of this NPRM. We will consider all comments received by the closing date and may amend this NPRM because of those comments. We will post all comments we receive, without change, to https:// www.regulations.gov, including any personal information you provide. We will also post a report summarizing each substantive verbal contact we receive about this proposed AD. Discussion We issued AD 2017–08–07, Amendment 39–18856 (82 FR 18084, April 17, 2017) (‘‘2017–08–07’’) for certain serial-numbered Learjet Model 60 airplanes. AD 2017–08–07 required a one-time inspection of the fuselage skin for corrosion and, as necessary, additional related inspections and corrective actions. AD 2017–08–07 resulted from an evaluation by the design approval holder that indicated the upper fuselage skin under the aft oxygen line fairing is subject to multisite damage. We issued AD 2017–08–07 to detect and correct corrosion of the fuselage skin, which could result in reduced structural integrity of the airplane. After we issued AD 2017–08–07, we determined that only certain airplanes listed in the applicability of AD 2017– 08–07 are affected by the unsafe condition. Therefore, we issued AD 2017–11–09, Amendment 39–18908 (82 FR 24462, May 30, 2017) (‘‘AD 2017– 11–09’’) to supersede AD 2017–08–07. AD 2017–11–09 retained all of the actions of AD 2017–08–07 but revised the applicability to identify only airplanes with a dorsal-mounted oxygen bottle and airplanes that have had the dorsal-mounted oxygen bottle removed but have retained the oxygen line fairing installed on top of the fuselage. Actions Since AD 2017–11–09 Was Issued Since we issued AD 2017–11–09, we identified an error in the area of the fluorescent dye penetrant inspection requirement. AD 2017–11–09 requires the fluorescent penetrant inspection of the fuselage skin between stringers (S)– 2L and S–2R. Bombardier Learjet 60 Service Bulletin (SB) 60–53–19, Recommended, Revision 3, dated August 29, 2016, specifies inspecting a smaller area, only out to the fairing end caps. We also identified an ambiguity in the compliance time for the inspection of the fuselage skin. Paragraphs (g)(1) through (3) of AD 2017–11–09 do not specify that the date of issuance of the original airworthiness certificate or the date of issuance of the original export certificate of airworthiness should be whichever date is earlier. We are proposing this AD to correct the error of the inspection area and clarify the compliance times for the fluorescent dye penetrant inspection of the fuselage skin. This proposed AD will detect and correct corrosion of the fuselage skin, which could result in reduced structural integrity of the airplane. Related Service Information Under 1 CFR Part 51 We reviewed Bombardier Learjet 60 Service Bulletin (SB) 60–53–19, Revision 3, dated August 29, 2016. This service information was previously approved for incorporation by reference in AD 2017–08–07 and AD 2017–11–09 retained the incorporation by reference of this SB. The service information describes procedures for inspections of the fuselage crown skin for corrosion and, as necessary, related investigative inspections and corrective actions. This service information is reasonably available because the interested parties have access to it through their normal course of business or by the means identified in the ADDRESSES section. FAA’s Determination We are proposing this AD because we evaluated all the relevant information and determined the unsafe condition described previously is likely to exist or develop in other products of the same type design. Proposed AD Requirements This proposed AD would retain all requirements of AD 2017–11–09. However, we removed the language in paragraph (g) that identified the area of the fuselage skin to be inspected as ‘‘between stringers (S)–2L and S–2R.’’ Both this proposed AD and AD 2017– 11–09 require following the instructions in Bombardier Learjet 60, Service Bulletin SB 60–53–19, Revision 3, dated August 29, 2016, which requires inspection of a smaller area (only out to the fairing end caps). Costs of Compliance We estimate that this proposed AD affects 284 airplanes of U.S. registry. We estimate the following costs to comply with this proposed AD: ESTIMATED COSTS Action Labor cost Inspection (retained action from AD 2017– 11–09). 46 work-hours × $85 per hour = $3,910 ........ VerDate Sep<11>2014 15:12 Feb 07, 2019 Jkt 247001 PO 00000 Frm 00017 Fmt 4702 Sfmt 4702 Parts cost E:\FR\FM\08FEP1.SGM $265 08FEP1 Cost per product $4,175 Cost on U.S. operators $1,185,700 2795 Federal Register / Vol. 84, No. 27 / Friday, February 8, 2019 / Proposed Rules ESTIMATED COSTS—Continued Action Labor cost Reporting (retained action from AD 2017–11– 09). 1 work-hour × $85 per hour = $85 ................. This AD adds no additional economic burden. We have received no definitive data that would enable us to provide cost estimates for the on-condition actions specified in this AD. According to the manufacturer, some of the costs of this AD may be covered under warranty, thereby reducing the cost impact on affected individuals. We do not control warranty coverage for affected individuals. As a result, we have included all known costs in our cost estimate. Pmangrum on DSK3GMQ082PROD with PROPOSALS Paperwork Reduction Act 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 currently 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 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, completing and reviewing the collection of information. All responses to this collection of information are mandatory. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden to: Information Collection Clearance Officer, Federal Aviation Administration, 10101 Hillwood Parkway, Fort Worth, TX 76177–1524. 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 VerDate Sep<11>2014 15:12 Feb 07, 2019 Jkt 247001 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 small airplanes, gliders, balloons, airships, domestic business jet transport airplanes, and associated appliances to the Director of the Policy and Innovation Division. Regulatory Findings We have determined that this proposed AD would not have federalism implications under Executive Order 13132. This proposed AD would not have a substantial direct effect on the States, on the relationship between the national Government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that the proposed regulation: (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Is not a ‘‘significant rule’’ under the DOT Regulatory Policies and Procedures (44 FR 11034, February 26, 1979), (3) Will not affect intrastate aviation in Alaska, and (4) Will not have a significant economic impact, positive or negative, on a substantial number of small entities under the criteria of the Regulatory Flexibility Act. List of Subjects in 14 CFR Part 39 Air transportation, Aircraft, Aviation safety, Incorporation by reference, Safety. The Proposed Amendment Accordingly, under the authority delegated to me by the Administrator, PO 00000 Frm 00018 Fmt 4702 Sfmt 4702 Cost per product Parts cost 0 Cost on U.S. operators 85 24,140 the FAA proposes to amend 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 Airworthiness Directive (AD) 2017–11–09, Amendment 39–18908 (82 FR 24462, May 30, 2017) and adding the following new AD: ■ Learjet, Inc.: Docket No. FAA–2019–0046; Product Identifier 2018–CE–040–AD. (a) Comments Due Date The FAA must receive comments on this AD action by March 25, 2019. (b) Affected ADs This AD replaces AD 2017–11–09, Amendment 39–18908 (82 FR 24462, May 30, 2017) (‘‘AD 2017–11–09’’). (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 (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 Joint Aircraft System Component (JASC)/ 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. E:\FR\FM\08FEP1.SGM 08FEP1 2796 Federal Register / Vol. 84, No. 27 / Friday, February 8, 2019 / Proposed Rules (g) Inspection of the Fuselage Skin, Related Investigative Inspections, and Corrective Actions At the applicable compliance times specified in paragraphs (g)(1) through (3) of this AD, do the fluorescent dye penetrant inspection of the fuselage skin for corrosion. Before further flight, do all related investigative and corrective actions. Follow the Accomplishment Instructions of Bombardier Learjet 60 Service Bulletin 60– 53–19 Revision 3, dated August 29, 2016, (SB 60–53–19, Revision 3) except as required by paragraph (h) of this AD. (1) As of May 22, 2017 (the effective date of AD 2017–08–07, Amendment 39–18856 (82 FR 18084, April 17, 2017) (‘‘2017–08– 07’’), which was superseded by AD 2017–11– 09), any 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, whichever date is earlier: Inspect within 12 months after May 22, 2017 (the effective date of AD 2017–08–07, which was superseded by 2017–11–09). (2) As of May 22, 2017 (the effective date of AD 2017–08–07, which was superseded by AD 2017–11–09), any 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, whichever date is earlier: Inspect within 24 months after May 22, 2017 (the effective date of AD 2017–08–07, which was superseded by AD 2017–11–09). (3) As of May 22, 2017 (the effective date of AD 2017–08–07, which was superseded by AD 2017–11–09), any 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, whichever date is earlier: Inspect within 36 months after May 22, 2017 (the effective date of AD 2017–08–07, which was superseded by AD 2017–11–09). Pmangrum on DSK3GMQ082PROD with PROPOSALS (h) Retained Service Information Exception, With No Changes This paragraph restates the requirements of paragraph (h) of AD 2017–11–09, with no changes. Where SB 60–53–19, Revision 3, 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 2017–11–09, 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 ACO Branch, 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 VerDate Sep<11>2014 15:12 Feb 07, 2019 Jkt 247001 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 specified in Bombardier Learjet 60 SB 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, which was superseded by AD 2017– 11–09): 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, which was superseded by AD 2017–11– 09): Submit the report within 30 days after May 22, 2017 (the effective date of AD 2017– 08–07, which was superseded by AD 2017– 11–09). (j) Credit for Previous Actions This AD allows credit for the actions required in the introductory text of paragraph (g) if completed before the effective date of this AD using the Accomplishment Instructions in Learjet 60 SB 60–53–19, dated November 23, 2015; Learjet 60 SB 60–53–19 Revision 1, dated April 4, 2016; or Learjet 60 SB 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 1 hour 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 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 ACO Branch, 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 PO 00000 Frm 00019 Fmt 4702 Sfmt 4702 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 Branch, 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 or AD 2017–11–09 should continue to be considered approved for the corresponding requirements in paragraph (g) of this AD. (m) Related Information (1) For more information about this AD, contact Tara Shawn, Aerospace Engineer, Wichita ACO Branch, 1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: (316) 946–4141; fax: (316) 946–4107; email: tara.shawn@faa.gov or Wichita-COS@faa.gov. (2) For 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: https:// www.bombardier.com. You may view this service information at the FAA, Policy and Innovation Division, 901 Locust, Kansas City, Missouri 64106. For information on the availability of this material at the FAA, call (816) 329–4148. Issued in Kansas City, Missouri, on January 31, 2019. Melvin J. Johnson, Aircraft Certification Service, Deputy Director, Policy and Innovation Division, AIR–601. [FR Doc. 2019–01500 Filed 2–7–19; 8:45 am] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2018–1071; Product Identifier 2018–NM–119–AD] RIN 2120–AA64 Airworthiness Directives; Fokker Services B.V. Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Notice of proposed rulemaking (NPRM). AGENCY: We propose to adopt a new airworthiness directive (AD) for all Fokker Services B.V. Model F28 Mark 0070 and 0100 airplanes. This proposed AD was prompted by a determination SUMMARY: E:\FR\FM\08FEP1.SGM 08FEP1

Agencies

[Federal Register Volume 84, Number 27 (Friday, February 8, 2019)]
[Proposed Rules]
[Pages 2793-2796]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2019-01500]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2019-0046; Product Identifier 2018-CE-040-AD]
RIN 2120-AA64


Airworthiness Directives; Learjet, Inc. Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to supersede Airworthiness Directive (AD) 2017-11-
09, which applies to certain Learjet, Inc. (Learjet), Model 60 
airplanes. AD 2017-11-09 requires a one-time inspection of the fuselage 
skin for corrosion and, as necessary, additional related inspections 
and corrective actions. Since we issued AD 2017-11-09, we identified an 
error in the fluorescent dye penetrant inspection of the fuselage skin 
and an ambiguity in the compliance time for the fluorescent dye 
penetrant inspection. We are proposing this AD to clarify the 
compliance time and correct an error for the fluorescent dye penetrant 
inspection of the fuselage skin.

DATES: We must receive comments on this proposed AD by March 25, 2019.

ADDRESSES: You may send comments, using the procedures found in 14 CFR 
11.43 and 11.45, by any of the following methods:
     Federal eRulemaking Portal: Go to https://www.regulations.gov. Follow the instructions for submitting comments.
     Fax: 202-493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590.

[[Page 2794]]

     Hand Delivery: Deliver to Mail address above between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this NPRM, contact Learjet, 
Inc., One Learjet Way, Wichita, KS 67209-2942; telephone: 316-946-2000; 
fax: 316-946-2220; email: ac.ict@aero.bombardier.com; internet: https://www.bombardier.com. You may view this service information at the FAA, 
Policy and Innovation Division, 901 Locust, Kansas City, Missouri 
64106. For information on the availability of this material at the FAA, 
call (816) 329-4148.

Examining the AD Docket

    You may examine the AD docket on the internet at https://www.regulations.gov by searching for and locating Docket No. FAA-2019-
0046; or in person at Docket Operations between 9 a.m. and 5 p.m., 
Monday through Friday, except Federal holidays. The AD docket contains 
this NPRM, the regulatory evaluation, any comments received, and other 
information. The street address for Docket Operations (phone: 800-647-
5527) is listed above. Comments will be available in the AD docket 
shortly after receipt.

FOR FURTHER INFORMATION CONTACT: Tara Shawn, Aerospace Engineer, 
Wichita ACO Branch, 1801 Airport Road, Room 100, Wichita, Kansas 67209; 
telephone: (316) 946-4141; fax: (316) 946-4107; email: 
tara.shawn@faa.gov or Wichita-COS@faa.gov.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments about this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include ``Docket No. FAA-2019-0046; 
Product Identifier 2018-CE-040-AD'' at the beginning of your comments. 
We specifically invite comments on the overall regulatory, economic, 
environmental, and energy aspects of this NPRM. We will consider all 
comments received by the closing date and may amend this NPRM because 
of those comments.
    We will post all comments we receive, without change, to https://www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive about this proposed AD.

Discussion

    We issued AD 2017-08-07, Amendment 39-18856 (82 FR 18084, April 17, 
2017) (``2017-08-07'') for certain serial-numbered Learjet Model 60 
airplanes. AD 2017-08-07 required a one-time inspection of the fuselage 
skin for corrosion and, as necessary, additional related inspections 
and corrective actions. AD 2017-08-07 resulted from an evaluation by 
the design approval holder that indicated the upper fuselage skin under 
the aft oxygen line fairing is subject to multi-site damage. We issued 
AD 2017-08-07 to detect and correct corrosion of the fuselage skin, 
which could result in reduced structural integrity of the airplane.
    After we issued AD 2017-08-07, we determined that only certain 
airplanes listed in the applicability of AD 2017-08-07 are affected by 
the unsafe condition. Therefore, we issued AD 2017-11-09, Amendment 39-
18908 (82 FR 24462, May 30, 2017) (``AD 2017-11-09'') to supersede AD 
2017-08-07. AD 2017-11-09 retained all of the actions of AD 2017-08-07 
but revised the applicability to identify only airplanes with a dorsal-
mounted oxygen bottle and airplanes that have had the dorsal-mounted 
oxygen bottle removed but have retained the oxygen line fairing 
installed on top of the fuselage.

Actions Since AD 2017-11-09 Was Issued

    Since we issued AD 2017-11-09, we identified an error in the area 
of the fluorescent dye penetrant inspection requirement. AD 2017-11-09 
requires the fluorescent penetrant inspection of the fuselage skin 
between stringers (S)-2L and S-2R. Bombardier Learjet 60 Service 
Bulletin (SB) 60-53-19, Recommended, Revision 3, dated August 29, 2016, 
specifies inspecting a smaller area, only out to the fairing end caps.
    We also identified an ambiguity in the compliance time for the 
inspection of the fuselage skin. Paragraphs (g)(1) through (3) of AD 
2017-11-09 do not specify that the date of issuance of the original 
airworthiness certificate or the date of issuance of the original 
export certificate of airworthiness should be whichever date is 
earlier.
    We are proposing this AD to correct the error of the inspection 
area and clarify the compliance times for the fluorescent dye penetrant 
inspection of the fuselage skin. This proposed AD will detect and 
correct corrosion of the fuselage skin, which could result in reduced 
structural integrity of the airplane.

Related Service Information Under 1 CFR Part 51

    We reviewed Bombardier Learjet 60 Service Bulletin (SB) 60-53-19, 
Revision 3, dated August 29, 2016. This service information was 
previously approved for incorporation by reference in AD 2017-08-07 and 
AD 2017-11-09 retained the incorporation by reference of this SB. The 
service information describes procedures for inspections of the 
fuselage crown skin for corrosion and, as necessary, related 
investigative inspections and corrective actions. This service 
information is reasonably available because the interested parties have 
access to it through their normal course of business or by the means 
identified in the ADDRESSES section.

FAA's Determination

    We are proposing this AD because we evaluated all the relevant 
information and determined the unsafe condition described previously is 
likely to exist or develop in other products of the same type design.

Proposed AD Requirements

    This proposed AD would retain all requirements of AD 2017-11-09. 
However, we removed the language in paragraph (g) that identified the 
area of the fuselage skin to be inspected as ``between stringers (S)-2L 
and S-2R.'' Both this proposed AD and AD 2017-11-09 require following 
the instructions in Bombardier Learjet 60, Service Bulletin SB 60-53-
19, Revision 3, dated August 29, 2016, which requires inspection of a 
smaller area (only out to the fairing end caps).

Costs of Compliance

    We estimate that this proposed AD affects 284 airplanes of U.S. 
registry.
    We estimate the following costs to comply with this proposed AD:

                                                 Estimated Costs
----------------------------------------------------------------------------------------------------------------
                                                                                     Cost per      Cost on U.S.
                Action                         Labor cost           Parts cost        product        operators
----------------------------------------------------------------------------------------------------------------
Inspection (retained action from AD     46 work-hours x $85 per             $265          $4,175      $1,185,700
 2017-11-09).                            hour = $3,910.

[[Page 2795]]

 
Reporting (retained action from AD      1 work-hour x $85 per                  0              85          24,140
 2017-11-09).                            hour = $85.
----------------------------------------------------------------------------------------------------------------

    This AD adds no additional economic burden. We have received no 
definitive data that would enable us to provide cost estimates for the 
on-condition actions specified in this AD. According to the 
manufacturer, some of the costs of this AD may be covered under 
warranty, thereby reducing the cost impact on affected individuals. We 
do not control warranty coverage for affected individuals. As a result, 
we have included all known costs in our cost estimate.

Paperwork Reduction Act

    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 currently 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 1 hour per response, including the time for reviewing 
instructions, searching existing data sources, gathering and 
maintaining the data needed, completing and reviewing the collection of 
information. All responses to this collection of information are 
mandatory. Send comments regarding this burden estimate or any other 
aspect of this collection of information, including suggestions for 
reducing this burden to: Information Collection Clearance Officer, 
Federal Aviation Administration, 10101 Hillwood Parkway, Fort Worth, TX 
76177-1524.

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 small airplanes, gliders, 
balloons, airships, domestic business jet transport airplanes, and 
associated appliances to the Director of the Policy and Innovation 
Division.

Regulatory Findings

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

List of Subjects in 14 CFR Part 39

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

The Proposed Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13   [Amended]

0
2. The FAA amends Sec.  39.13 by removing Airworthiness Directive (AD) 
2017-11-09, Amendment 39-18908 (82 FR 24462, May 30, 2017) and adding 
the following new AD:

Learjet, Inc.: Docket No. FAA-2019-0046; Product Identifier 2018-CE-
040-AD.

(a) Comments Due Date

    The FAA must receive comments on this AD action by March 25, 
2019.

(b) Affected ADs

    This AD replaces AD 2017-11-09, Amendment 39-18908 (82 FR 24462, 
May 30, 2017) (``AD 2017-11-09'').

(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 (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

    Joint Aircraft System Component (JASC)/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.

[[Page 2796]]

(g) Inspection of the Fuselage Skin, Related Investigative Inspections, 
and Corrective Actions

    At the applicable compliance times specified in paragraphs 
(g)(1) through (3) of this AD, do the fluorescent dye penetrant 
inspection of the fuselage skin for corrosion. Before further 
flight, do all related investigative and corrective actions. Follow 
the Accomplishment Instructions of Bombardier Learjet 60 Service 
Bulletin 60-53-19 Revision 3, dated August 29, 2016, (SB 60-53-19, 
Revision 3) except as required by paragraph (h) of this AD.
    (1) As of May 22, 2017 (the effective date of AD 2017-08-07, 
Amendment 39-18856 (82 FR 18084, April 17, 2017) (``2017-08-07''), 
which was superseded by AD 2017-11-09), any 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, whichever date is earlier: Inspect 
within 12 months after May 22, 2017 (the effective date of AD 2017-
08-07, which was superseded by 2017-11-09).
    (2) As of May 22, 2017 (the effective date of AD 2017-08-07, 
which was superseded by AD 2017-11-09), any 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, 
whichever date is earlier: Inspect within 24 months after May 22, 
2017 (the effective date of AD 2017-08-07, which was superseded by 
AD 2017-11-09).
    (3) As of May 22, 2017 (the effective date of AD 2017-08-07, 
which was superseded by AD 2017-11-09), any 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, whichever date is earlier: Inspect 
within 36 months after May 22, 2017 (the effective date of AD 2017-
08-07, which was superseded by AD 2017-11-09).

(h) Retained Service Information Exception, With No Changes

    This paragraph restates the requirements of paragraph (h) of AD 
2017-11-09, with no changes. Where SB 60-53-19, Revision 3, 
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 
2017-11-09, 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 ACO Branch, 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 
specified in Bombardier Learjet 60 SB 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, which was superseded by AD 2017-11-
09): 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, which was superseded by AD 2017-11-
09): Submit the report within 30 days after May 22, 2017 (the 
effective date of AD 2017-08-07, which was superseded by AD 2017-11-
09).

(j) Credit for Previous Actions

    This AD allows credit for the actions required in the 
introductory text of paragraph (g) if completed before the effective 
date of this AD using the Accomplishment Instructions in Learjet 60 
SB 60-53-19, dated November 23, 2015; Learjet 60 SB 60-53-19 
Revision 1, dated April 4, 2016; or Learjet 60 SB 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 1 hour 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 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 ACO Branch, 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 Branch, 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 or AD 2017-11-09 
should continue to be considered approved for the corresponding 
requirements in paragraph (g) of this AD.

(m) Related Information

    (1) For more information about this AD, contact Tara Shawn, 
Aerospace Engineer, Wichita ACO Branch, 1801 Airport Road, Room 100, 
Wichita, Kansas 67209; telephone: (316) 946-4141; fax: (316) 946-
4107; email: tara.shawn@faa.gov or Wichita-COS@faa.gov.
    (2) For 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: https://www.bombardier.com. You may view this service 
information at the FAA, Policy and Innovation Division, 901 Locust, 
Kansas City, Missouri 64106. For information on the availability of 
this material at the FAA, call (816) 329-4148.

    Issued in Kansas City, Missouri, on January 31, 2019.
Melvin J. Johnson,
Aircraft Certification Service, Deputy Director, Policy and Innovation 
Division, AIR-601.
[FR Doc. 2019-01500 Filed 2-7-19; 8:45 am]
BILLING CODE 4910-13-P
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