AD 2021-04-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Airbus | Various | Airworthiness Directives; Airbus Helicopters |
Unsafe Condition
debonding and cracking of the tail rotor (T/R) blades, which can result in significant vibrations and reduced control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
accomplish a visual and in-depth inspection of each T/R blade for debonding, and eddy current inspect each T/R blade for a crack. If there is debonding within allowable limits, repair or replace the T/R blade. If there is debonding that exceeds allowable limits or a crack, replace the T/R blade.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within 15 hours TIS after the effective date of this AD or within 15 hours TIS after last inspecting the T/R blade as required by paragraph (f)(1) of AD 2020-19-02, whichever occurs first, and thereafter at intervals not to exceed 15 hours TIS for T/R blade P/N 330A12-0006-(all dash numbers) (with a de-icing system), and within 30 hours TIS after the effective date of this AD, or within 30 hours TIS after last inspecting the T/R blade as required by paragraph (f)(1) of AD 2020-19-02, whichever occurs first, and thereafter at intervals not to exceed 30 hours TIS for T/R blade P/N 330A12-0005-(all dash numbers) (without a de-icing system).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Airbus Helicopters Model SA330J helicopters with certain T/R blades with and without a de-icing system installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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