Federal Register #2026-17581

FAA Airworthiness Directives for Leonardo S.p.A. Helicopters and Lycoming Engines – Bearing Inspection and Piston Pin Replacement

This opportunity centers on new airworthiness directives issued by the Federal Aviation Administration (FAA) for Leonardo S.p.A. helicopters and Lycoming Engines. - Government Buyer: - Federal Aviation Administration (FAA), Department of Transportation - Aircraft Certification Service - OEMs Mentioned: - Leonardo S.p.A. (helicopter manufacturer) - Lycoming Engines (aircraft engine manufacturer) - Products/Services Requested: - For Leonardo S.p.A. helicopters: - One-time inspection of swashplate duplex bearing (part number 1090110353) - Corrective action if bearing is improperly installed - Prohibition on installation of affected bearings unless requirements are met - For Lycoming Engines: - Replacement of faulty piston pins in models O235, O540, and IO540 - Unique/Notable Requirements: - Inspections and corrective actions are mandated to prevent bearing or engine failure and loss of control - No procurement or purchase quantities specified; this is a regulatory safety action - Compliance deadlines and repair instructions are provided - References European Union Aviation Safety Agency (EASA) AD 2025-0148 for procedures - No contract value or purchasing activity; this is a compliance directive for safety.

Description

The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.A. Model A109A, A109A II, A109C, A109K2, A109E, A119, and AW119 MKII helicopters; and certain Model A109S and AW109SP helicopters. This AD was prompted by a report of an incorrectly installed swashplate duplex bearing. It requires a one-time inspection of the bearing and corrective action if necessary. The AD also prohibits installation of an affected bearing unless certain requirements are met to address the unsafe condition and prevent potential loss of control of the helicopter.

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