Time Limits / Maintenance Checks — Airworthiness Limitations Section — Amendment
- Published
- Effective
- Replaces
- 2010-0181
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators must replace components before exceeding their service life limits and perform all maintenance tasks within specified intervals as detailed in the updated ALS. Any discrepancies found during maintenance must be corrected promptly according to Airbus Helicopters documentation. Additionally, the approved Aircraft Maintenance Programme must be revised within 12 months of 18 September 2025 to incorporate the new limitations and tasks.
Summary
EASA Airworthiness Directive 2025-0191 is an amendment concerning the Airbus Helicopters EC 155 B and EC 155 B1 models. It updates the Airworthiness Limitations Section (ALS) to include new and more restrictive maintenance tasks and life limits to ensure continued airworthiness. This directive applies to all serial numbers of these helicopter models.
What changed
This amendment supersedes EASA AD 2010-0181 and introduces updated ALS revisions 009 for EC 155 B and 011 for EC 155 B1 helicopters. It incorporates new and/or more restrictive maintenance tasks and life limits, including instructions for the first replacement of the upper attach beam. The directive mandates revising the Aircraft Maintenance Programme (AMP) to reflect these changes within 12 months of the effective date.
Why it matters
Compliance with EASA Airworthiness Directive 2025-0191 is critical for operators and maintenance organizations to prevent unsafe conditions caused by failure to perform updated maintenance tasks and replacements. The directive ensures that maintenance programs are aligned with the latest safety standards, reducing the risk of component failures and enhancing overall helicopter reliability and safety.
More for Airbus Helicopters SA
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- EASA PAD 26-105Tail Rotor Drive – Tail Gear Box Control Rod Bearings – Replacement / Life LimitationSep 11, 2026
- EASA AD 2026-0118Rotors Flight Control – Tail Rotor Actuator – InspectionJun 22, 2026
- EASA AD 2026-0029Tail Rotor Drive — Tail Gear Box Input Flange — Functional ChecksFeb 12, 2026
- EASA PAD 26-017Powerplant — Engine Firewalls — Modification
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