Rotors Flight Control — Fork Lever — Inspection
- Published
- Effective
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected BO105 and MBB-BK117 helicopters must inspect the specified fork lever parts within 110 flight hours or one month from 15 October 2025, whichever occurs first. Any cracked parts must be replaced before the next flight, and inspection results must be reported to Airbus Helicopters Deutschland GmbH within 30 days of detection. Only inspected, crack-free parts may be installed after the effective date.
Summary
EASA Airworthiness Directive 2025-0217 is an airworthiness directive addressing the inspection of the rotors flight control fork lever on Airbus Helicopters Deutschland GmbH BO105 and MBB-BK117 helicopter models. It mandates a one-time inspection of the fork lever part numbers 105-42122.01, 117-421221.01, and 117-421231.02 to detect cracks that could lead to part failure and potential loss of helicopter control.
What changed
This new airworthiness directive introduces a mandatory one-time inspection of the affected fork lever parts on specified BO105 and MBB-BK117 helicopters. It requires replacement of any cracked parts before further flight and reporting of findings to Airbus Helicopters Deutschland GmbH. The directive also allows installation of inspected and crack-free parts only from the effective date.
Why it matters
This directive is critical for aviation professionals as it addresses a safety risk involving potential cracks in a key flight control component that could cause loss of control. Operators and maintenance organizations must comply to ensure continued airworthiness and regulatory compliance. Timely inspections and corrective actions help prevent accidents and maintain operational safety.
More for Airbus Helicopters BO 105
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- EASA AD 2021-0142Time Limits / Maintenance Checks — Airworthiness Limitations Section — AmendmentJun 17, 2021
- EASA AD 2019-0024Airworthiness Limitation Section – TT-Straps – Storage Life LimitFeb 4, 2019
- EASA AD 2016-0142R1Main Rotor — Swashplate Assembly — Replacement / Inspection
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