Time Limits / Maintenance Checks — Main Gearbox Particle Detector / Oil Filter / Oil Cooler — Inspection Main Rotor Drive — Epicyclic Module — Replacement / Modification / Reduced Service Life Limit
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators and maintenance providers must review and implement the new inspection schedules and replacement criteria as outlined in EASA Airworthiness Directive 2024-0198. They should update maintenance programs accordingly and ensure all affected helicopters undergo the required checks and part replacements within the specified timeframes. Monitoring compliance deadlines and documenting all maintenance actions is necessary to meet regulatory obligations.
Summary
EASA Airworthiness Directive 2024-0198 addresses time limits and maintenance checks for the main gearbox particle detector, oil filter, and oil cooler inspections, as well as replacement, modification, and reduced service life limits for the main rotor drive epicyclic module. This directive applies specifically to Airbus Helicopters models SA 330, AS 332, and EC 225. It aims to ensure continued airworthiness and safety of these helicopter models by updating inspection and replacement requirements.
What changed
This directive introduces updated inspection intervals and maintenance checks for the main gearbox components, including the particle detector, oil filter, and oil cooler. It also establishes new replacement and modification requirements for the main rotor drive epicyclic module, including reduced service life limits to enhance reliability and safety. These changes represent new regulatory requirements rather than amendments to previous directives.
Why it matters
The updated requirements are critical for operators and maintenance organizations to prevent potential failures in key gearbox components that could compromise flight safety. Compliance ensures that the main rotor drive system remains within safe operational parameters, reducing the risk of in-flight malfunctions. For compliance teams, understanding these changes is essential to maintain regulatory adherence and avoid operational disruptions.
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 Airbus Helicopters SA 330, Helicopters AS 332 and Helicopters EC 225, summarized like this page, every Monday.