Airworthiness Directives; Bell Textron Canada Limited Helicopters, 22900-22903 [2023-07779]

Download as PDF 22900 Federal Register / Vol. 88, No. 72 / Friday, April 14, 2023 / Rules and Regulations (ii) Before further flight, replace the transfer pump motor impeller with a transfer pump motor impeller having a serviceable inlet adapter, in accordance with paragraph D., Work Instructions, Attachment A, Boeing Multiple Operator Message MOM–MOM–22– 0549–01B(R1), dated November 29, 2022. (j) Retained Reporting Inspection Results, With No Changes This paragraph restates the requirements of paragraph (j) of AD 2022–27–07, with no changes. At the applicable time specified in paragraph (j)(1) or (2) of this AD, submit a report of all findings of the inspections required by paragraphs (h) and (i) of this AD, in accordance with paragraph G. and Appendix A, Attachment A, Boeing Multiple Operator Message MOM–MOM–22–0549– 01B(R1), dated November 29, 2022. (1) If the inspection was done on or after January 13, 2023 (the effective date of AD 2022–27–07): Submit the report within 30 days after the inspection. (2) If the inspection was done before January 13, 2023 (the effective date of AD 2022–27–07): Submit the report within 30 days after January 13, 2023. (k) Retained Parts Installation Limitation, With Revised Affected Parts This paragraph restates the requirements of paragraph (k) of AD 2022–27–07, with revised affected parts. As of January 13, 2023 (the effective date of AD 2022–27–07), no person may install, on any airplane, a Crane Aerospace Hydro-Aire horizontal stabilizer fuel transfer pump housing or transfer pump motor impeller, unless the transfer pump motor impeller inlet adaptor and transfer pump housing inlet check valve have been inspected as specified in paragraph (h) or (i) of this AD, as applicable, and been determined to be a serviceable part as defined in paragraph (g)(1) or (2) of this AD. (l) Retained Credit for Previous Actions, With No Changes This paragraph restates the provisions of paragraph (l) of AD 2022–27–07, with no changes. This paragraph provides credit for actions required by paragraphs (h) and (i) of this AD, if those actions were performed before January 13, 2023 (the effective date of AD 2022–27–07) using Boeing Multiple Operator Message MOM–MOM–22–0549– 01B, dated November 21, 2022. ddrumheller on DSK120RN23PROD with RULES1 (m) Special Flight Permit Special flight permits may be issued in accordance with 14 CFR 21.197 and 21.199 to operate the airplane to a location where the actions required by this AD can be performed, provided the horizontal stabilizer fuel tank is defueled and both transfer pump circuit breakers are locked in the ‘‘open’’ position. (n) Alternative Methods of Compliance (AMOCs) (1) The Manager, Seattle ACO Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending VerDate Sep<11>2014 16:10 Apr 13, 2023 Jkt 259001 information directly to the manager of the certification office, send it to the attention of the person identified in paragraph (o)(1) of this AD. Information may be emailed to: 9ANM-Seattle-ACO-AMOC-Requests@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office. (3) An AMOC that provides an acceptable level of safety may be used for any repair, modification, or alteration required by this AD if it is approved by The Boeing Company Organization Designation Authorization (ODA) that has been authorized by the Manager, Seattle ACO Branch, FAA, to make those findings. To be approved, the repair method, modification deviation, or alteration deviation must meet the certification basis of the airplane, and the approval must specifically refer to this AD. Issued on April 8, 2023. Christina Underwood, Acting Director, Compliance & Airworthiness Division, Aircraft Certification Service. (o) Related Information AGENCY: (1) For more information about this AD, contact Samuel Dorsey, Aerospace Engineer, Propulsion Section, FAA, Seattle ACO Branch, 2200 South 216th St., Des Moines, WA 98198; phone: 206–231–3415; email: Samuel.j.dorsey@faa.gov. (2) Service information identified in this AD that is not incorporated by reference is available at the addresses specified in paragraphs (p)(4) and (5) of this AD. (p) 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 this AD specifies otherwise. (3) The following service information was approved for IBR on January 13, 2023 (87 FR 80028, December 29, 2022). (i) Boeing Multiple Operator Message MOM–MOM–22–0549–01B(R1), dated November 29, 2022. (ii) [Reserved] (4) For Boeing service information identified in this AD, contact Boeing Commercial Airplanes, Attention: Contractual & Data Services (C&DS), 2600 Westminster Blvd., MC 110–SK57, Seal Beach, CA 90740–5600; telephone 562–797– 1717; website myboeingfleet.com. (5) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 2200 South 216th St., Des Moines, WA. For information on the availability of this material at the FAA, call 206–231–3195. (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, email fr.inspection@nara.gov, or go to: www.archives.gov/federal-register/cfr/ibrlocations.html. PO 00000 Frm 00008 Fmt 4700 Sfmt 4700 [FR Doc. 2023–08027 Filed 4–12–23; 4:15 pm] BILLING CODE 4910–13–P DEPARTMENT OF TRANSPORTATION Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2022–1488; Project Identifier MCAI–2022–00788–R; Amendment 39–22391; AD 2023–06–05] RIN 2120–AA64 Airworthiness Directives; Bell Textron Canada Limited Helicopters Federal Aviation Administration (FAA), DOT. ACTION: Final rule. The FAA is adopting a new airworthiness directive (AD) for all Bell Textron Canada Limited Model 206A, 206A–1 (OH–58A), 206B, 206B–1, 206L, 206L–1, 206L–3, and 206L–4 helicopters. This AD was prompted by a loss of tail rotor (TR) drive due to a failure of an adhesively bonded joint between an adapter and a tube on one of the segmented TR drive shaft (TRDS) assemblies. This AD requires determining if an affected TRDS is installed; repetitively inspecting the bond line for damage; repetitively performing a proof load test of the TRDS assembly; and depending on the results of the inspections or the proof load tests, removing an affected TRDS from service and replacing it with a serviceable TRDS. This AD also prohibits installing a TRDS unless it meets certain requirements, as specified in a Transport Canada AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective May 19, 2023. The Director of the Federal Register approved the incorporation by reference of a certain publication listed in this AD as of May 19, 2023. ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No. FAA–2022–1488; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, any comments received, and other information. The address for Docket Operations is U.S. Department of Transportation, Docket SUMMARY: E:\FR\FM\14APR1.SGM 14APR1 Federal Register / Vol. 88, No. 72 / Friday, April 14, 2023 / Rules and Regulations Operations, M–30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. Material Incorporated by Reference: • For Transport Canada material that is incorporated by reference in this final rule, contact Transport Canada, Transport Canada National Aircraft Certification, 159 Cleopatra Drive, Nepean, Ontario, K1A 0N5, CANADA; telephone 888–663–3639; email TC.AirworthinessDirectivesConsignesdenavigabilite.TC@tc.gc.ca; internet tc.canada.ca/en/aviation. • You may view this material at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N–321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call (817) 222–5110. It is also available at regulations.gov under Docket No. FAA–2022–1488. Other Related Service Information: For Bell service information identified in this final rule, contact Bell Textron Canada Limited, 12,800 Rue de l’Avenir, Mirabel, Quebec J7J 1R4, Canada; telephone 1–450–437–2862 or 1–800– 363–8023; fax 1–450–433–0272; email productsupport@bellflight.com; or at bellflight.com/support/contact-support. This service information is also available at the FAA contact information under Material Incorporated by Reference above. FOR FURTHER INFORMATION CONTACT: Kristi Bradley, Program Manager, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222–5110; email kristin.bradley@faa.gov. SUPPLEMENTARY INFORMATION: ddrumheller on DSK120RN23PROD with RULES1 Background Transport Canada, which is the aviation authority for Canada, has issued Transport Canada AD CF–2022– 33, dated June 15, 2022 (Transport Canada AD CF–2022–33), to correct an unsafe condition for Bell Textron Canada Limited Model 206A, 206A–1, 206B, 206B–1, 206L, 206L–1, 206L–3 and 206L–4 helicopters, all serial numbers. The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to Bell Textron Canada Limited Model 206A, 206A–1 (OH–58A), 206B, 206B–1, 206L, 206L–1, 206L–3, and 206L–4 helicopters, all serial numbers. The NPRM published in the Federal Register on November 28, 2022 (87 FR 72899). The NPRM was prompted by a VerDate Sep<11>2014 16:10 Apr 13, 2023 Jkt 259001 report in which a Bell Textron Canada Limited Model 206L–1 helicopter experienced loss of TR drive during a maintenance test flight, which was due to a failure of an adhesively bonded joint between an adapter and a tube on one of the segmented TRDS assemblies. The NPRM proposed to require determining if an affected TRDS is installed; repetitively inspecting the bond line for damage; repetitively performing a proof load test of the TRDS assembly; and depending on the results of the inspections or the proof load tests, removing an affected TRDS from service and replacing it with a serviceable TRDS. The NPRM also proposed to prohibit installing a TRDS unless it meets certain requirements, as specified in Transport Canada AD CF– 2022–33. Discussion of Final Airworthiness Directive Comments The FAA received comments from one individual commenter. The following presents the comments received on the NPRM and the FAA’s response to each comment. Request To Not Incorporate the Transport Canada AD by Reference One individual requested that the FAA not reference Transport Canada AD CF–2022–33 in the FAA AD. The commenter stated Transport Canada AD CF–2022–33 either repeats the instructions found in the alert service bulletin (ASB) or directs the reader to the ASB. Additionally, the commenter stated referencing Transport Canada ADs is a new practice and the Transport Canada ADs should only be referenced if they make a substantial addition to the ASB requirements. The FAA disagrees with both the request to not require compliance with Transport Canada AD CF–2022–33 in the FAA AD and the request to discontinue the method of requiring compliance with some foreign ADs issued by the foreign state of design authority. In the FAA’s ongoing efforts to improve the efficiency of the AD process, the FAA developed a process to use some civil aviation authority ADs as the primary source of information for compliance with requirements for corresponding FAA ADs. FAA ADs that require compliance with foreign ADs have been utilized since 2018 for some products and since 2022 for Bell Textron Canada Limited helicopters. Referring to Transport Canada AD CF– 2022–33 minimizes the need for Alternative Methods of Compliance. PO 00000 Frm 00009 Fmt 4700 Sfmt 4700 22901 Conclusion These helicopters have been approved by the aviation authority of Canada and are approved for operation in the United States. Pursuant to the FAA’s bilateral agreement with Canada, Transport Canada, its technical representative, has notified the FAA of the unsafe condition described in its AD. The FAA reviewed the relevant data, considered the comments received, and determined that air safety requires adopting this AD as proposed. Accordingly, the FAA is issuing this AD to address the unsafe condition on these helicopters. This AD is adopted as proposed in the NPRM. Related Service Information Under 1 CFR Part 51 Transport Canada AD CF–2022–33 requires determining if a helicopter has an affected TRDS installed. If there is an affected TRDS installed, Transport Canada AD CF–2022–33 requires performing a repetitive detailed inspection of the bond line of the inboard end of the flange and, if there is damage, replacing the affected TRDS with a serviceable TRDS. Transport Canada AD CF–2022–33 also requires performing a repetitive proof load test of the TRDS assembly and replacing any TRDS that fails the proof load test. Transport Canada AD CF–2022–33 also prohibits installing a TRDS unless certain requirements are met. This material 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. Other Related Service Information The FAA also reviewed Bell ASB 206–20–139, Revision A, dated August 21, 2020 for Model 206A, 206B, and TH–67 helicopters, and Bell ASB 206L– 20–184, Revision C, dated January 14, 2021 for Model 206L, 206L–1, 206L–3, and 206L–4 helicopters. This service information specifies procedures for repetitive detailed visual inspections and proof load tests of installed bonded TRDSs, and replacement of an affected bonded TRDS that fails a visual inspection or proof load test with a serviceable segmented bonded TRDS or a riveted TRDS. This service information also specifies that replacing all the bonded TRDS assemblies with riveted TRDS assemblies is a terminating action for the repetitive visual inspections and proof load tests. The FAA reviewed Bell Helicopter Technical Bulletin (TB) No. 206–06– 186, Revision B, dated September 7, 2007, and Bell Helicopter Textron TB No. 206L–02–207, Revision A, dated E:\FR\FM\14APR1.SGM 14APR1 22902 Federal Register / Vol. 88, No. 72 / Friday, April 14, 2023 / Rules and Regulations January 22, 2003, which both specify procedures for installing a riveted TRDS and rotor break disc; inspecting the aft short shaft and driveshaft assemblies; and stripping and painting the aft short shaft and driveshaft assemblies. Differences Between This AD, the Transport Canada AD, and the Service Information Where the service information referenced in Transport Canada AD CF– 2022–33 specifies recording certain information in the event of a bond line failure and notifying Bell Product Support Engineering of the findings, this AD does not require recording any information or reporting any information to Bell Product Support Engineering. Costs of Compliance The FAA estimates that this AD affects 1,395 helicopters of U.S. Registry. Labor rates are estimated at $85 per work-hour. Based on these numbers, the FAA estimates the following costs to comply with this AD. Determining if an affected TRDS is installed takes about 0.5 work-hour for an estimated cost of $43 per helicopter and $59,985 for the U.S. fleet. Inspecting the bond line and performing a proof load test takes about 1.5 work-hours for an estimated cost of $128 per helicopter per inspection cycle. Replacing an affected TRDS assembly takes about 12 work-hours and parts cost up to $32,708 for an estimated cost of up to $33,728 per helicopter. ddrumheller on DSK120RN23PROD with RULES1 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. The FAA is 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. VerDate Sep<11>2014 16:10 Apr 13, 2023 Jkt 259001 Regulatory Findings This AD will not have federalism implications under Executive Order 13132. This AD will not have a substantial direct effect on the States, on the relationship between the national government and the States, or on the distribution of power and responsibilities among the various levels of government. For the reasons discussed above, I certify that this AD: (1) Is not a ‘‘significant regulatory action’’ under Executive Order 12866, (2) Will not affect intrastate aviation in Alaska, and (3) 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 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 adding the following new airworthiness directive: ■ 2023–06–05 Bell Textron Canada Limited: Amendment 39–22391; Docket No. FAA–2022–1488; Project Identifier MCAI–2022–00788–R. (a) Effective Date This airworthiness directive (AD) is effective May 19, 2023. (b) Affected ADs None. (c) Applicability This AD applies to Bell Textron Canada Limited Model 206A, 206A–1 (OH–58A), 206B, 206B–1, 206L, 206L–1, 206L–3, and 206L–4 helicopters, all serial numbers, certificated in any category. (d) Subject Joint Aircraft Service Component (JASC) Code: 6510, Tail Rotor Drive Shaft. (e) Unsafe Condition This AD was prompted by a loss of tail rotor (TR) drive due to a failure of an adhesively bonded joint between an adapter PO 00000 Frm 00010 Fmt 4700 Sfmt 4700 and a tube on one of the segmented TR drive shaft (TRDS) assemblies. The FAA is issuing this AD to detect degradation of the adhesive bond of the TRDS assembly. The unsafe condition, if not addressed, could result in loss of TR drive and subsequent loss of control of the helicopter. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Requirements Except as specified in paragraphs (h) and (i) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, Transport Canada AD CF–2022–33, dated June 15, 2022 (Transport Canada AD CF–2022–33). (h) Exceptions To Transport Canada AD CF– 2022–33 (1) Where Transport Canada AD CF–2022– 33 requires compliance in terms of air time, this AD requires using hours time-in-service (TIS). (2) Where Transport Canada AD CF–2022– 33 refers to its effective date, this AD requires using the effective date of this AD. (3) Where Transport Canada AD CF–2022– 33 defines ‘‘Affected TRDS,’’ for this AD replace each instance of the text ‘‘affected TRDS,’’ with ‘‘a TRDS with a part number (P/ N) that is not one of the riveted TRDS P/Ns listed in the accomplishment instructions of Bell Alert Service Bulletin (ASB) 206–20– 139, Revision A, dated August 21, 2020 (ASB 206–20–139 Rev A) or Bell ASB 206L–20– 184, Revision C, dated January 14, 2021 (ASB 206L–20–184 Rev C) as applicable to your model helicopter.’’ (4) Where Transport Canada AD CF–2022– 33 defines ‘‘Serviceable part,’’ for this AD replace each instance of the text ‘‘serviceable part,’’ with ‘‘a riveted TRDS with a P/N that is listed in the accomplishment instructions of ASB 206–20–139 Rev A or ASB 206L–20– 184 Rev C as applicable to your model helicopter; or an affected TRDS that has been inspected and proof load tested in accordance with the requirements of this AD within the past 300 hours TIS or within the last 12 months, whichever occurs first.’’ (5) Where the service information referenced in Transport Canada AD CF– 2022–33 specifies scrapping or discarding a part, this AD requires removing that part from service. (6) Where the service information referenced in Transport Canada AD CF– 2022–33 specifies in the event of a bond line failure, recording the torque value at which it failed, the affected shaft position, part number, serial number, and which end failed, and notifying Bell Product Support Engineering of the findings, this AD does not require recording any discrepancies or reporting any information to Bell Product Support Engineering. (i) No Reporting Requirement Although the service information referenced in Transport Canada AD CF– 2022–33 specifies to submit certain information to the manufacturer, this AD does not include that requirement. E:\FR\FM\14APR1.SGM 14APR1 Federal Register / Vol. 88, No. 72 / Friday, April 14, 2023 / Rules and Regulations (j) Special Flight Permit Special flight permits are prohibited. DEPARTMENT OF TRANSPORTATION (k) Alternative Methods of Compliance (AMOCs) (1) The Manager, International Validation 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 International Validation Branch, send it to the attention of the person identified in paragraph (l) of this AD. Information may be emailed to: 9-AVS-AIR730-AMOC@faa.gov. (2) Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the local flight standards district office/ certificate holding district office. ddrumheller on DSK120RN23PROD with RULES1 (l) Related Information For more information about this AD, contact Kristi Bradley, Program Manager, COS Program Management Section, Operational Safety Branch, Compliance & Airworthiness Division, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222–5110; email kristin.bradley@faa.gov. (m) Material Incorporated by Reference (1) The Director of the Federal Register approved the incorporation by reference 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 this AD specifies otherwise. (i) Transport Canada AD CF–2022–33, dated June 15, 2022. (ii) [Reserved] (3) For Transport Canada service information identified in this AD, contact Transport Canada, Transport Canada National Aircraft Certification, 159 Cleopatra Drive, Nepean, Ontario, K1A 0N5, CANADA; telephone 888–663–3639; email TC.AirworthinessDirectivesConsignesdenavigabilite.TC@tc.gc.ca; internet tc.canada.ca/en/aviation. (4) You may view this service information at the FAA, Office of the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N–321, Fort Worth, TX 76177. For information on the availability of this material at the FAA, call (817) 222–5110. (5) You may view this material that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email fr.inspection@nara.gov, or go to: www.archives.gov/federal-register/cfr/ibrlocations.html. Issued on March 16, 2023. Christina Underwood, Acting Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023–07779 Filed 4–13–23; 8:45 am] BILLING CODE 4910–13–P VerDate Sep<11>2014 16:10 Apr 13, 2023 Jkt 259001 Federal Aviation Administration 14 CFR Part 39 [Docket No. FAA–2022–1404; Project Identifier MCAI–2022–01044–A; Amendment 39–22410; AD 2023–07–08] RIN 2120–AA64 Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes Federal Aviation Administration (FAA), DOT. ACTION: Final rule. AGENCY: The FAA is adopting a new airworthiness directive (AD) for certain Pilatus Aircraft Ltd. (Pilatus) Model PC– 12/47E airplanes. This AD was prompted by mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI identifies the unsafe condition as corrosion of the actuator attachment lug areas underneath the anti-rotation pads of the main landing gear (MLG) and nose landing gear (NLG). This AD requires replacing certain MLG and NLG electromechanical actuators. The FAA is issuing this AD to address the unsafe condition on these products. DATES: This AD is effective May 19, 2023. SUMMARY: ADDRESSES: AD Docket: You may examine the AD docket at regulations.gov under Docket No.FAA–2022–1404; or in person at Docket Operations between 9 a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD docket contains this final rule, the MCAI, any comments received, and other information. The address for Docket Operations is U.S. Department of Transportation, Docket Operations, M– 30, West Building Ground Floor, Room W12–140, 1200 New Jersey Avenue SE, Washington, DC 20590. FOR FURTHER INFORMATION CONTACT: Doug Rudolph, Aviation Safety Engineer, FAA, General Aviation & Rotorcraft Section, International Validation Branch, 901 Locust, Room 301, Kansas City, MO 64106; phone: (816) 329–4059; email: doug.rudolph@ faa.gov. SUPPLEMENTARY INFORMATION: Background The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would PO 00000 Frm 00011 Fmt 4700 Sfmt 4700 22903 apply to certain serial-numbered Pilatus Model PC–12/47E airplanes. The NPRM published in the Federal Register on November 7, 2022 (87 FR 66971). The NPRM was prompted by EASA AD 2022–0158, dated August 4, 2022 (EASA AD 2022–0158) (referred to after this as ‘‘the MCAI’’), issued by the European Union Aviation Safety Agency (EASA), which is the Technical Agent for the Member States of the European Union. The MCAI was prompted by occurrences of corrosion on the MLG and NLG actuator attachment lugs, underneath the anti-rotation pads of Pilatus Model PC–12/47E airplanes. The MCAI states that investigations revealed that extending or retracting the affected landing gear results in fretting between the anti-rotation pads and the actuator attachment lugs. This decreases the effectivity of surface protection, allows corrosion to develop on the attachment lug areas underneath the anti-rotation pads, and leads to cracking and failure of the attachment lugs. This condition, if not addressed, could result in loss of functionality of the MLG and NLG, which could result in damage to the airplane and injury to the occupants. The MCAI requires inspecting, and if required, replacing affected MLG and NLG electromechanical actuators with serviceable actuators and prohibits the installation of an affected actuator unless it has been reworked to become a serviceable actuator. Since issuance of the NPRM, EASA superseded EASA AD 2022–0158 with EASA AD 2022–0245, dated December 12, 2022 (EASA AD 2022–0245). EASA AD 2022–0245 retains the requirements of EASA AD 2022–0158 and references revised service information. In the NPRM, the FAA proposed to require replacing affected MLG and NLG actuators with serviceable actuators and prohibit the installation of an affected actuator unless it has been reworked (inspection and modification) to become a serviceable actuator. The FAA is issuing this AD to address the unsafe condition on these products. You may examine the MCAI in the AD docket at regulations.gov under Docket No. FAA–2022–1404. Discussion of Final Airworthiness Directive Comments The FAA received a comment from the Air Line Pilots Association, International (ALPA), who supported the NPRM without change. The FAA received additional comments from Pilatus. The following presents the comments received on the NPRM and the FAA’s response. E:\FR\FM\14APR1.SGM 14APR1

Agencies

[Federal Register Volume 88, Number 72 (Friday, April 14, 2023)]
[Rules and Regulations]
[Pages 22900-22903]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-07779]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2022-1488; Project Identifier MCAI-2022-00788-R; 
Amendment 39-22391; AD 2023-06-05]
RIN 2120-AA64


Airworthiness Directives; Bell Textron Canada Limited Helicopters

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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

SUMMARY: The FAA is adopting a new airworthiness directive (AD) for all 
Bell Textron Canada Limited Model 206A, 206A-1 (OH-58A), 206B, 206B-1, 
206L, 206L-1, 206L-3, and 206L-4 helicopters. This AD was prompted by a 
loss of tail rotor (TR) drive due to a failure of an adhesively bonded 
joint between an adapter and a tube on one of the segmented TR drive 
shaft (TRDS) assemblies. This AD requires determining if an affected 
TRDS is installed; repetitively inspecting the bond line for damage; 
repetitively performing a proof load test of the TRDS assembly; and 
depending on the results of the inspections or the proof load tests, 
removing an affected TRDS from service and replacing it with a 
serviceable TRDS. This AD also prohibits installing a TRDS unless it 
meets certain requirements, as specified in a Transport Canada AD, 
which is incorporated by reference. The FAA is issuing this AD to 
address the unsafe condition on these products.

DATES: This AD is effective May 19, 2023.
    The Director of the Federal Register approved the incorporation by 
reference of a certain publication listed in this AD as of May 19, 
2023.

ADDRESSES: 
    AD Docket: You may examine the AD docket at regulations.gov under 
Docket No. FAA-2022-1488; or in person at Docket Operations between 9 
a.m. and 5 p.m., Monday through Friday, except Federal holidays. The AD 
docket contains this final rule, any comments received, and other 
information. The address for Docket Operations is U.S. Department of 
Transportation, Docket

[[Page 22901]]

Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue SE, Washington, DC 20590.
    Material Incorporated by Reference:
     For Transport Canada material that is incorporated by 
reference in this final rule, contact Transport Canada, Transport 
Canada National Aircraft Certification, 159 Cleopatra Drive, Nepean, 
Ontario, K1A 0N5, CANADA; telephone 888-663-3639; email 
[email protected]; 
internet tc.canada.ca/en/aviation.
     You may view this material at the FAA, Office of the 
Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 6N-321, 
Fort Worth, TX 76177. For information on the availability of this 
material at the FAA, call (817) 222-5110. It is also available at 
regulations.gov under Docket No. FAA-2022-1488.
    Other Related Service Information: For Bell service information 
identified in this final rule, contact Bell Textron Canada Limited, 
12,800 Rue de l'Avenir, Mirabel, Quebec J7J 1R4, Canada; telephone 1-
450-437-2862 or 1-800-363-8023; fax 1-450-433-0272; email 
[email protected]; or at bellflight.com/support/contact-support. This service information is also available at the FAA contact 
information under Material Incorporated by Reference above.

FOR FURTHER INFORMATION CONTACT: Kristi Bradley, Program Manager, COS 
Program Management Section, Operational Safety Branch, Compliance & 
Airworthiness Division, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 
76177; telephone (817) 222-5110; email [email protected].

SUPPLEMENTARY INFORMATION:

Background

    Transport Canada, which is the aviation authority for Canada, has 
issued Transport Canada AD CF-2022-33, dated June 15, 2022 (Transport 
Canada AD CF-2022-33), to correct an unsafe condition for Bell Textron 
Canada Limited Model 206A, 206A-1, 206B, 206B-1, 206L, 206L-1, 206L-3 
and 206L-4 helicopters, all serial numbers.
    The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 
CFR part 39 by adding an AD that would apply to Bell Textron Canada 
Limited Model 206A, 206A-1 (OH-58A), 206B, 206B-1, 206L, 206L-1, 206L-
3, and 206L-4 helicopters, all serial numbers.
    The NPRM published in the Federal Register on November 28, 2022 (87 
FR 72899). The NPRM was prompted by a report in which a Bell Textron 
Canada Limited Model 206L-1 helicopter experienced loss of TR drive 
during a maintenance test flight, which was due to a failure of an 
adhesively bonded joint between an adapter and a tube on one of the 
segmented TRDS assemblies. The NPRM proposed to require determining if 
an affected TRDS is installed; repetitively inspecting the bond line 
for damage; repetitively performing a proof load test of the TRDS 
assembly; and depending on the results of the inspections or the proof 
load tests, removing an affected TRDS from service and replacing it 
with a serviceable TRDS. The NPRM also proposed to prohibit installing 
a TRDS unless it meets certain requirements, as specified in Transport 
Canada AD CF-2022-33.

Discussion of Final Airworthiness Directive

Comments

    The FAA received comments from one individual commenter. The 
following presents the comments received on the NPRM and the FAA's 
response to each comment.

Request To Not Incorporate the Transport Canada AD by Reference

    One individual requested that the FAA not reference Transport 
Canada AD CF-2022-33 in the FAA AD. The commenter stated Transport 
Canada AD CF-2022-33 either repeats the instructions found in the alert 
service bulletin (ASB) or directs the reader to the ASB. Additionally, 
the commenter stated referencing Transport Canada ADs is a new practice 
and the Transport Canada ADs should only be referenced if they make a 
substantial addition to the ASB requirements.
    The FAA disagrees with both the request to not require compliance 
with Transport Canada AD CF-2022-33 in the FAA AD and the request to 
discontinue the method of requiring compliance with some foreign ADs 
issued by the foreign state of design authority. In the FAA's ongoing 
efforts to improve the efficiency of the AD process, the FAA developed 
a process to use some civil aviation authority ADs as the primary 
source of information for compliance with requirements for 
corresponding FAA ADs. FAA ADs that require compliance with foreign ADs 
have been utilized since 2018 for some products and since 2022 for Bell 
Textron Canada Limited helicopters. Referring to Transport Canada AD 
CF-2022-33 minimizes the need for Alternative Methods of Compliance.

Conclusion

    These helicopters have been approved by the aviation authority of 
Canada and are approved for operation in the United States. Pursuant to 
the FAA's bilateral agreement with Canada, Transport Canada, its 
technical representative, has notified the FAA of the unsafe condition 
described in its AD. The FAA reviewed the relevant data, considered the 
comments received, and determined that air safety requires adopting 
this AD as proposed. Accordingly, the FAA is issuing this AD to address 
the unsafe condition on these helicopters. This AD is adopted as 
proposed in the NPRM.

Related Service Information Under 1 CFR Part 51

    Transport Canada AD CF-2022-33 requires determining if a helicopter 
has an affected TRDS installed. If there is an affected TRDS installed, 
Transport Canada AD CF-2022-33 requires performing a repetitive 
detailed inspection of the bond line of the inboard end of the flange 
and, if there is damage, replacing the affected TRDS with a serviceable 
TRDS. Transport Canada AD CF-2022-33 also requires performing a 
repetitive proof load test of the TRDS assembly and replacing any TRDS 
that fails the proof load test. Transport Canada AD CF-2022-33 also 
prohibits installing a TRDS unless certain requirements are met.
    This material 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.

Other Related Service Information

    The FAA also reviewed Bell ASB 206-20-139, Revision A, dated August 
21, 2020 for Model 206A, 206B, and TH-67 helicopters, and Bell ASB 
206L-20-184, Revision C, dated January 14, 2021 for Model 206L, 206L-1, 
206L-3, and 206L-4 helicopters. This service information specifies 
procedures for repetitive detailed visual inspections and proof load 
tests of installed bonded TRDSs, and replacement of an affected bonded 
TRDS that fails a visual inspection or proof load test with a 
serviceable segmented bonded TRDS or a riveted TRDS. This service 
information also specifies that replacing all the bonded TRDS 
assemblies with riveted TRDS assemblies is a terminating action for the 
repetitive visual inspections and proof load tests.
    The FAA reviewed Bell Helicopter Technical Bulletin (TB) No. 206-
06-186, Revision B, dated September 7, 2007, and Bell Helicopter 
Textron TB No. 206L-02-207, Revision A, dated

[[Page 22902]]

January 22, 2003, which both specify procedures for installing a 
riveted TRDS and rotor break disc; inspecting the aft short shaft and 
driveshaft assemblies; and stripping and painting the aft short shaft 
and driveshaft assemblies.

Differences Between This AD, the Transport Canada AD, and the Service 
Information

    Where the service information referenced in Transport Canada AD CF-
2022-33 specifies recording certain information in the event of a bond 
line failure and notifying Bell Product Support Engineering of the 
findings, this AD does not require recording any information or 
reporting any information to Bell Product Support Engineering.

Costs of Compliance

    The FAA estimates that this AD affects 1,395 helicopters of U.S. 
Registry. Labor rates are estimated at $85 per work-hour. Based on 
these numbers, the FAA estimates the following costs to comply with 
this AD.
    Determining if an affected TRDS is installed takes about 0.5 work-
hour for an estimated cost of $43 per helicopter and $59,985 for the 
U.S. fleet.
    Inspecting the bond line and performing a proof load test takes 
about 1.5 work-hours for an estimated cost of $128 per helicopter per 
inspection cycle.
    Replacing an affected TRDS assembly takes about 12 work-hours and 
parts cost up to $32,708 for an estimated cost of up to $33,728 per 
helicopter.

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.
    The FAA is 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

    This AD will not have federalism implications under Executive Order 
13132. This AD will not have a substantial direct effect on the States, 
on the relationship between the national government and the States, or 
on the distribution of power and responsibilities among the various 
levels of government.
    For the reasons discussed above, I certify that this AD:
    (1) Is not a ``significant regulatory action'' under Executive 
Order 12866,
    (2) Will not affect intrastate aviation in Alaska, and
    (3) 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 Amendment

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

PART 39--AIRWORTHINESS DIRECTIVES

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

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


Sec.  39.13  [Amended]

0
2. The FAA amends Sec.  39.13 by adding the following new airworthiness 
directive:

2023-06-05 Bell Textron Canada Limited: Amendment 39-22391; Docket 
No. FAA-2022-1488; Project Identifier MCAI-2022-00788-R.

(a) Effective Date

    This airworthiness directive (AD) is effective May 19, 2023.

(b) Affected ADs

    None.

(c) Applicability

    This AD applies to Bell Textron Canada Limited Model 206A, 206A-
1 (OH-58A), 206B, 206B-1, 206L, 206L-1, 206L-3, and 206L-4 
helicopters, all serial numbers, certificated in any category.

(d) Subject

    Joint Aircraft Service Component (JASC) Code: 6510, Tail Rotor 
Drive Shaft.

(e) Unsafe Condition

    This AD was prompted by a loss of tail rotor (TR) drive due to a 
failure of an adhesively bonded joint between an adapter and a tube 
on one of the segmented TR drive shaft (TRDS) assemblies. The FAA is 
issuing this AD to detect degradation of the adhesive bond of the 
TRDS assembly. The unsafe condition, if not addressed, could result 
in loss of TR drive and subsequent loss of control of the 
helicopter.

(f) Compliance

    Comply with this AD within the compliance times specified, 
unless already done.

(g) Requirements

    Except as specified in paragraphs (h) and (i) of this AD: Comply 
with all required actions and compliance times specified in, and in 
accordance with, Transport Canada AD CF-2022-33, dated June 15, 2022 
(Transport Canada AD CF-2022-33).

(h) Exceptions To Transport Canada AD CF-2022-33

    (1) Where Transport Canada AD CF-2022-33 requires compliance in 
terms of air time, this AD requires using hours time-in-service 
(TIS).
    (2) Where Transport Canada AD CF-2022-33 refers to its effective 
date, this AD requires using the effective date of this AD.
    (3) Where Transport Canada AD CF-2022-33 defines ``Affected 
TRDS,'' for this AD replace each instance of the text ``affected 
TRDS,'' with ``a TRDS with a part number (P/N) that is not one of 
the riveted TRDS P/Ns listed in the accomplishment instructions of 
Bell Alert Service Bulletin (ASB) 206-20-139, Revision A, dated 
August 21, 2020 (ASB 206-20-139 Rev A) or Bell ASB 206L-20-184, 
Revision C, dated January 14, 2021 (ASB 206L-20-184 Rev C) as 
applicable to your model helicopter.''
    (4) Where Transport Canada AD CF-2022-33 defines ``Serviceable 
part,'' for this AD replace each instance of the text ``serviceable 
part,'' with ``a riveted TRDS with a P/N that is listed in the 
accomplishment instructions of ASB 206-20-139 Rev A or ASB 206L-20-
184 Rev C as applicable to your model helicopter; or an affected 
TRDS that has been inspected and proof load tested in accordance 
with the requirements of this AD within the past 300 hours TIS or 
within the last 12 months, whichever occurs first.''
    (5) Where the service information referenced in Transport Canada 
AD CF-2022-33 specifies scrapping or discarding a part, this AD 
requires removing that part from service.
    (6) Where the service information referenced in Transport Canada 
AD CF-2022-33 specifies in the event of a bond line failure, 
recording the torque value at which it failed, the affected shaft 
position, part number, serial number, and which end failed, and 
notifying Bell Product Support Engineering of the findings, this AD 
does not require recording any discrepancies or reporting any 
information to Bell Product Support Engineering.

(i) No Reporting Requirement

    Although the service information referenced in Transport Canada 
AD CF-2022-33 specifies to submit certain information to the 
manufacturer, this AD does not include that requirement.

[[Page 22903]]

(j) Special Flight Permit

    Special flight permits are prohibited.

(k) Alternative Methods of Compliance (AMOCs)

    (1) The Manager, International Validation 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 International Validation Branch, send 
it to the attention of the person identified in paragraph (l) of 
this AD. Information may be emailed to: [email protected].
    (2) Before using any approved AMOC, notify your appropriate 
principal inspector, or lacking a principal inspector, the manager 
of the local flight standards district office/certificate holding 
district office.

(l) Related Information

    For more information about this AD, contact Kristi Bradley, 
Program Manager, COS Program Management Section, Operational Safety 
Branch, Compliance & Airworthiness Division, FAA, 10101 Hillwood 
Pkwy., Fort Worth, TX 76177; telephone (817) 222-5110; email 
[email protected].

(m) Material Incorporated by Reference

    (1) The Director of the Federal Register approved the 
incorporation by reference 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 this AD specifies otherwise.
    (i) Transport Canada AD CF-2022-33, dated June 15, 2022.
    (ii) [Reserved]
    (3) For Transport Canada service information identified in this 
AD, contact Transport Canada, Transport Canada National Aircraft 
Certification, 159 Cleopatra Drive, Nepean, Ontario, K1A 0N5, 
CANADA; telephone 888-663-3639; email [email protected]; internet tc.canada.ca/en/
aviation.
    (4) You may view this service information at the FAA, Office of 
the Regional Counsel, Southwest Region, 10101 Hillwood Pkwy., Room 
6N-321, Fort Worth, TX 76177. For information on the availability of 
this material at the FAA, call (817) 222-5110.
    (5) You may view this material that is incorporated by reference 
at the National Archives and Records Administration (NARA). For 
information on the availability of this material at NARA, email 
[email protected], or go to: www.archives.gov/federal-register/cfr/ibr-locations.html.

    Issued on March 16, 2023.
Christina Underwood,
Acting Director, Compliance & Airworthiness Division, Aircraft 
Certification Service.
[FR Doc. 2023-07779 Filed 4-13-23; 8:45 am]
BILLING CODE 4910-13-P
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