EASA AD 2022-0140: Rotor Drive(s) — Main Gearbox Flange Assemblies / Couplings — Inspection | RegNotify

Airworthiness DirectiveEASA AD 2022-0140

Rotor Drive(s) — Main Gearbox Flange Assemblies / Couplings — Inspection

Published: Jul 7, 2022
Effective: Jul 21, 2022
Deadline: Jul 21, 2022

AI-generated summary of the official EASA document. Verify against the PDF before acting.

What to do

Operators of SA 330 J helicopters with affected parts must inspect the main gearbox flange assembly couplings within 50 flight hours or 6 months from 2022-07-21, whichever comes first. If an incorrectly assembled part is found, it must be replaced before the next flight. Installation of affected parts or main gearboxes equipped with them is prohibited from the effective date.

Summary

EASA Airworthiness Directive 2022-0140 is an airworthiness directive addressing Airbus Helicopters SA 330 J helicopters. It mandates inspection of the main gearbox flange assembly couplings, specifically part number 330A32-9392-01, due to a risk of incorrect assembly that could impair drive transmission from the engines to the main gearbox.

What changed

This new directive introduces a one-time inspection requirement for affected main gearbox flange assembly couplings installed on SA 330 J helicopters. It also prohibits installation of these affected parts or main gearboxes equipped with them on any helicopter from the effective date.

Why it matters

This directive is critical for aviation professionals as it addresses a potential unsafe condition that could lead to loss of engine drive transmission and reduced helicopter control. Operators and maintenance organizations must ensure compliance to maintain airworthiness and safety, preventing possible in-flight failures.

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