// FAA AD DETAIL
FAA AD Detail
FAA 2026-03-02
FAA 2026-03-02
CurrentAD Final Rules
- Subject
- This AD was prompted by fatigue crack found on the ring frame ring that attaches the fuselage tail boom structure to the tail rotor housing. The FAA is issuing this AD to detect and address fatigue cracking in the ring frame. The unsafe condition, if not addressed, could result in loss of a tail rotor and consequent loss of control of the helicopter.
- Model
- This AD applies to Airbus Helicopters Deutschland GmbH (AHD) Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, EC135T3, and EC635T2+ helicopters, certificated in any category with mounting ring frame X9227, part number (P/N) L535H2120301, L535H2120303, or L535H2120304, installed, except those with frame reinforcement P/N L535H2100201 or L535H2100202 installed. Note 1 to paragraph (c): Helicopters with an EC135P3H designation are Model EC135P3 helicopters. Helicopters with EC135T3H designation are Model EC135T3 helicopters
- Docket Number
- FAA-2026-0733
- Amendment Number
- Publish Date
- 2026-02-02
- Effective Date
- 2026-02-17
- Superseded AD
- FAA 2014-13-09
- Superseded By