Airworthiness Directive

AD 2025-24-03: Main rotor gear box; and 6300, Main rotor drive system

Airworthiness Directives; Airbus Helicopters

Effective: Dec 26, 2025
Published: Nov 20, 2025
Registered aircraft: 5

Models this AD may apply to

AI-extracted — verify against original

Matched from the AD's applicability section. Applicability must be confirmed by a mechanic against the aircraft's records.

Aircraft

Airbus Helicopters EC225 LP

Only with: With MGB P/N 332A32-5001-XX, -5002-XX, or -5003-XX with main module P/N 332A32-5011-XX, -5012-XX, or -5013-XX (MOD 07-53016 installed), or MGB P/N 332A32-5004-XX with main module P/N 332A32-5400-00 installed.
Only with: With MGB P/N 332A32-5001-XX, -5002-XX, or -5003-XX with main module P/N 332A32-5011-XX, -5012-XX, or -5013-XX (MOD 07-53016 installed), or MGB P/N 332A32-5004-XX with main module P/N 332A32-5400-00 installed.

Applicability

From the AD text

This AD applies to Airbus Helicopters Model EC225LP helicopters, certificated in any category, with the parts identified in paragraphs (c)(1) or (2) of this AD installed, with ``XX'' denoting any dash number. (1) With a main rotor gearbox (MGB) part number (P/N) 332A32-5001-XX, 332A32-5002-XX, or 332A32-5003-XX, with a main reduction gear module (main module), with modification (MOD) 07-53016 (16-roller free wheel of free wheel shaft P/N 332A322191.20) installed, P/N 332A32-5011-XX, 332A32-5012-XX, or 332A32-5013-XX. (2) With an MGB P/N 332A32-5004-XX with a main module P/N 332A32-5400-00.

Related ADs

Supersedes or revises AD 2019-19-13.

Read the AD in the Federal Register Report an error on this page