AD 2025-18-01: Leonardo S.p.A. Helicopters

What the FAA requires

The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.A. Model A109E, A109S, AW109SP, A119, and AW119 MKII helicopters. This AD was prompted by a report that certain manufacturer maintenance instructions for swashplate assembly installation specified incorrect torque values for certain swashplate nuts. This AD requires repetitively inspecting certain swashplate nuts for cracks, fretting, or slippage marks and, depending on the results, performing corrective actions. 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 Leonardo S.p.A. Model A109E, A109S, AW109SP, A119, and AW119 MKII helicopters, certificated in any category. (d) Subject Joint Aircraft System Component (JASC) Code: 6220, Main Rotor Head. (e) Unsafe Condition This AD was prompted by a report that certain manufacturer maintenance instructions for swashplate assembly installation specified incorrect torque values for certain swashplate nuts. The FAA is issuing this AD to detect and correct the condition of the swashplate nuts. The unsafe condition, if not addressed, could result in failure of the main rotor function and consequent loss of control of the helicopter. (f) Compliance Comply with this AD within the compliance ti

Part numbers this directive names (1)

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.