AD 2026-02-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Helicopters Deutschland GmbH | Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters |
Unsafe Condition
Reports of ruptured and deformed flexible couplings. The unsafe condition, if not addressed, could result in cracks and extensive deformation of flexible couplings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the axial displacement of the tail rotor drive shaft. Depending on the results, inspect the flexible couplings and replace any with discrepancies. Correct the axial displacement if necessary. Prohibit installing a tail rotor drive shaft unless certain procedures are followed.
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Compliance Time
Within 50 flight hours after the effective date.
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Affected Aircraft
Airbus Helicopters Deutschland GmbH Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, EC635T2+, and EC135T3 helicopters, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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