Superseded by EASA AD 2024-0100
Superseded. Comply with 2024-0100, which replaces this document.
- Published
- Effective
- Deadline
- Replaces
- 2018-0142-E
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Airbus Helicopters AS 332 models must remove removable parts of the dual hoist installation or the de-icing system before the next flight after 6 July 2018, unless they apply the alternative compliance method. For AS 332 L and L1 helicopters, amending the Rotorcraft Flight Manual with specified limitations and installing placards is an acceptable alternative. Compliance with these requirements is mandatory to continue operation.
Summary
EASA Airworthiness Directive 2018-0142R1 is an amendment addressing Airbus Helicopters AS 332 C, C1, L, and L1 models equipped with dual hoist installations and de-icing systems. This directive focuses on mitigating a vibration issue around 12 Hz caused by specific helicopter configurations that could lead to structural failure or loss of control. It provides requirements for removal of certain dual hoist parts or the de-icing system, or alternatively, operational flight envelope limitations for AS 332 L and L1 helicopters.
What changed
EASA Airworthiness Directive 2018-0142R1 revises the original Emergency AD 2018-0142-E by introducing an alternative compliance method for AS 332 L and L1 helicopters. Instead of mandatory removal of dual hoist parts or the de-icing system, operators may apply specific Rotorcraft Flight Manual amendments and install placards limiting flight envelope and never-exceed speed. This revision reflects additional flight test data confirming the effectiveness of operational limitations.
Why it matters
This directive is critical for aviation professionals to prevent potentially dangerous vibrations that could cause mechanical failure or loss of helicopter control. Operators and maintenance teams must ensure compliance to maintain airworthiness and safety. The alternative compliance option provides flexibility while ensuring continued safe operation, impacting flight operations and maintenance planning.
More for Airbus Helicopters SA 330
All 116- EASA AD 2021-0139R2Doors – Cabin Lateral Sliding Plug Door Emergency Jettisoning System – Inspection / ModificationOct 2, 2026
- EASA AD 2026-0166Fuselage – Splice of Frame X5295 – InspectionAug 19, 2026
- EASA AD 2026-0148Electrical Power – Direct Current Electrical Master Box – InspectionJul 28, 2026
- EASA AD 2023-0148R1Main Rotor Drive – Main Gearbox – Replacement; Placards and Markings – ENG1 Training Idle Switch – Installation / Operational RestrictionJul 24, 2026
Get the next one by email
New ADs and bulletins for these 7 aircraft types, summarized like this page, every Monday.