Airworthiness Directive · Amendment 39-22740 · Main landing gear attach section
Pilatus Aircraft Ltd. Airplanes
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.
The FAA is superseding Airworthiness Directive (AD) 2023-12- 17, which applied to Pilatus Aircraft Ltd. (Pilatus) Model PC-12, PC- 12/45, PC-12/47, and PC-12/47E airplanes. AD 2023-12-17 required revising the airworthiness limitation section (ALS) of the existing aircraft maintenance manual (AMM) or Instructions for Continued Airworthiness (ICA) for your airplane 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. Since the FAA issued AD 2023-12-17, the FAA has determined that new or more restrictive airworthiness limitations are necessary. This AD requires revising the ALS of your existing AMM or ICA and your existing approved maintenance or inspection program, as applicable, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
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, European Union Aviation Safety Agency (EASA) AD 2023-0184, dated October 19, 2023 (EASA AD 2023-0184).
(1) Where EASA AD 2023-0184 refers to its effective date, this AD requires using the effective date of this AD.
(2) This AD does not adopt the requirements specified in paragraphs (1), (2), (4), and (5) of EASA AD 2023-0184.
(3) Where paragraph (3) of EASA AD 2023-0184 specifies “Within 12 months after the effective date of this AD, revise the AMP,” replace that text with “Within 30 days after the effective date of this AD, revise the airworthiness limitations section of your existing airplane maintenance manual or instructions for continued airworthiness and your existing approved maintenance or inspection program, as applicable.”
(4) The initial compliance time for doing the tasks specified in paragraph (3) of EASA AD 2023-0184 is on or before the applicable “limitations” and “associated thresholds” as incorporated by the requirements of paragraph (3) of EASA AD 2023-0184 or within 30 days after the effective date of this AD, whichever occurs later.
(5) This AD does not adopt the “Remarks” section of EASA AD 2023-0184.
No alternative actions and associated thresholds and intervals, including life limits, are allowed for compliance with paragraph (g) of this AD unless they are approved as specified in the provisions of the “Ref. Publications” section of EASA AD 2023-0184.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
