AD 2025-10-10: Pilatus Aircraft Ltd. Airplanes

What the FAA requires

The FAA is superseding Airworthiness Directive (AD) 2023-26- 05, which applied to certain Pilatus Aircraft Ltd. (Pilatus) Model PC- 24 airplanes. AD 2023-26-05 required periodic replacement of affected titanium threaded bolts, a one-time inspection of the rudder mass balance arm and other elements of the rudder trim tab installation for correct attachment, damage (gouges), cracks, deformation, surface finish, and corrosion on any surrounding parts and, depending on findings, the accomplishment of applicable corrective actions. Since the FAA issued AD 2023-26-05, it was determined that some batches of titanium bolts had variations in the microstructure that could affect the fatigue characteristics. This AD requires replacing affected short rudder-trim control rod assemblies with serviceable rudder-trim control rod assemblies having threaded steel bolts and prohibits the installation of affected parts. The FAA is issuing this AD to address the unsafe condition on these products.

Read the full directive on the Federal Register →

Applicability

This AD applies to Pilatus Aircraft Ltd. Model PC-24 airplanes, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2024-0181R1, dated September 24, 2024 (EASA AD 2024-0181R1). (d) Subject Joint Aircraft System Component (JASC) Code 2721, Rudder Tab Control System. (e) Unsafe Condition This AD was prompted by a determination that the titanium threaded bolts installed at the forward end of the short rudder trim tab actuating rods could be subject to unexpectedly high oscillating loads due to aerodynamic forces acting on the rudder trim tab. The FAA is issuing this AD to address the unsafe condition. The unsafe condition, if not addressed, could resul

Part numbers this directive names (3)

Extracted from the directive text. For each: the NSN cross-reference where one exists, sellers listing it here, and open DLA solicitations on the NSN.