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FAA orders · airworthiness directive · historical

2023-12-17: Horizontal Stabilizer, Spar/Rib

FAA order 2023-12-17 is an airworthiness directive in force since August 7, 2023. The FAA's subject line: Horizontal Stabilizer, Spar/Rib. It names Pilatus PC-12: about 1,441 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: landing gear.

What it applies to as the FAA lists it

Kind of product
Aircraft
Makes
Pilatus Aircraft Ltd.
Models
PC-12, PC-12/47, PC-12/45, PC-12/47E
On this site
Pilatus PC-12 1,441 registered

Dates and paperwork

In force since
August 7, 2023
Published
July 3, 2023 (signed June 14, 2023)
Docket
FAA-2023-0667
Replaces
2022-19-03
Replaced by
2024-08-07
Status
Historical
The FAA's document
Read the order on the FAA's site

The FAA's summary their words, unchanged

The FAA is superseding Airworthiness Directive (AD) 2022-19-03 which applied to Pilatus Aircraft Ltd. (Pilatus) Model PC-12, PC-12/45, PC-12/47, and PC-12/47E airplanes. AD 2022-19-03 required incorporating new revisions to the airworthiness limitation section (ALS) of the existing airplane maintenance manual (AMM) or Instructions for Continued Airworthiness (ICA) to establish a 5-year life limit for certain main landing gear (MLG) actuator bottom attachment bolts and new life limits for the rudder bellcrank. Since the FAA issued AD 2022- 19-03, the FAA determined that new or more restrictive tasks and limitations are necessary. This AD requires revising the ALS of the existing AMM or ICA for your airplane, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference (IBR). The FAA is issuing this AD to address the unsafe condition on these products.

The order itself the regulatory text, as published

Show the full text (5,536 characters)
1. The authority citation for part 39 continues to read as follows: Authority: 49 U.S.C. 106(g), 40113, 44701. 2. The FAA amends § 39.13 by: a. Removing Airworthiness Directive 2022-19-03, Amendment 39-22172 (87 FR 57809, September 22, 2022); and b. Adding the following new airworthiness directive: 2023-12-17 Pilatus Aircraft Ltd.: Amendment 39-22475; Docket No. FAA-2023-0667; Project Identifier MCAI-2022-00735-A. (a) Effective Date This airworthiness directive (AD) is effective August 7, 2023. (b) Affected ADs This AD replaces AD 2022-19-03, Amendment 39-22172 (87 FR 57809, September 22, 2022) (AD 2022-19-03). (c) Applicability This AD applies to Pilatus Aircraft Ltd. Model PC-12, PC-12/45, PC-12/47, and PC-12/47E airplanes, all serial numbers, certificated in any category. (d) Subject Joint Aircraft System Component (JASC) Code 5511, Horizontal Stabilizer, Spar/Rib. (e) Unsafe Condition 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 states that failure to revise the airworthiness limitations section (ALS) of the existing aircraft maintenance manual (AMM) by introducing new and more restrictive instructions and maintenance tasks as specified in the component limitations section, which includes repetitive inspections for cracks in the lower main spar connection of the horizontal stabilizer, could result in an unsafe condition. The FAA is issuing this AD to address failure of certain parts, which could result in loss of airplane control. (f) Compliance Comply with this AD within the compliance times specified, unless already done. (g) Required Actions (1) Before further flight after the effective date of this AD, revise the ALS of the existing AMM or Instructions for Continued Airworthiness for your airplane by incorporating the requirements specified in paragraph (1) of European Union Aviation Safety Agency AD 2022-0103, dated June 9, 2022 (EASA AD 2022-0103). (2) The actions required by paragraph (g)(1) of this AD may be performed by the owner/operator (pilot) holding at least a private pilot certificate and must be entered into the aircraft records showing compliance with this AD in accordance with 14 CFR 43.9(a) and 91.417(a)(2)(v). The record must be maintained as required by 14 CFR 91.417, 121.380, or 135.439. (h) Provisions for Alternative Requirements (Airworthiness Limitations) After the actions required by paragraph (g) of this AD have been done, no alternative requirements (airworthiness limitations) are allowed unless they are approved as specified in the provisions of the "Ref. Publications" section of EASA AD 2022-0103. (i) 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, mail it to the address identified in paragraph (j) of this AD or email: 9-AVS-AIR-730-AMOC@faa.gov. If mailing information, also submit information by email. 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) Global AMOC AIR-730-22-357, dated September 28, 2022, and Global AMOC AIR-730-23-054 R1, dated February 10, 2023, were approved as AMOCs for the requirements for AD 2022-19-03, and are approved as AMOCs for the requirements of paragraph (g) of this AD. Other AMOCs previously issued for the requirements of AD 2022-19-03 are not approved as an AMOC for the requirements of this AD. (j) Additional Information For more information about this AD, contact Doug Rudolph, Aviation Safety Engineer, FAA, 1600 Stewart Avenue, Suite 410, Westbury, NY 11590; phone: (816) 329-4059; email: doug.rudolph@faa.gov. (k) 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 the AD specifies otherwise. (i) European Union Aviation Safety Agency AD 2022-0103, dated June 9, 2022. (ii) [Reserved] (3) For EASA AD 2022-0103, contact EASA, Konrad-Adenauer-Ufer 3, 50668 Cologne, Germany; phone: +49 221 8999 000; email: ADs@easa.europa.eu; website easa.europa.eu. You may find this EASA AD on the EASA website at ad.easa.europa.eu. (4) You may view this service information at the FAA, Airworthiness Products Section, Operational Safety Branch, 901 Locust, Kansas City, MO 64106. For information on the availability of this material at the FAA, call (817) 222-5110. (5) You may view this service information that is incorporated by reference at the National Archives and Records Administration (NARA). For information on the availability of this material at NARA, email: fr.inspection@nara.gov, or go to: www.archives.gov/federal-register/cfr/ibr-locations.html. Issued on June 14, 2023. Michael Linegang, Acting Director, Compliance & Airworthiness Division, Aircraft Certification Service. [FR Doc. 2023-14007 Filed 6-30-23; 8:45 am]BILLING CODE 4910-13-P

Related safety bulletins advice on the same designs, not orders

2017-05-19CE-17-13 · Engine Oil Pressure; Torque Transducer Oil Pressure Pipe P-Clamp Installation
2016-01-25CE-16-12 · AUTO FLIGHT - Autopilot
2004-10-25CE-05-08 ·
2004-07-08CE-04-70 ·
2004-04-12CE-04-62 ·

Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 5, 2026. Connections as data: /graph/directive/2023-12-17.json · aircraft systems.