AD 2007-22-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Various | Airworthiness Directives; Bell Helicopter Textron, Inc. Model 205A, 205A-1, 205B, 212, 412, 412CF, and 412EP Helicopters |
| aircraft | Bell | Helicopter Textron | Airworthiness Directives; Bell Helicopter Textron, Inc. Model 205A, 205A-1, 205B, 212, 412, 412CF, and 412EP Helicopters |
Unsafe Condition
Missing forward tip weight retention block (tip block) or aft tip closure (tip closure) due to adhesive bond voids, leading to blade loss and potential loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect each affected tail rotor blade tip block and tip closure for adhesive bond voids and remove blades with excessive voids. Inspect tip block attachment countersink screws for flushness with the abrasion strip surface; install shear pins if necessary. Install aft tip closure rivets, re-identify modified blades by adding 'FM' to the part number, and dynamically balance the tail rotor.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 100 hours time-in-service, unless already accomplished.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bell Helicopter Textron, Inc. Model 205A, 205A-1, 205B, 212, 412, 412CF, and 412EP helicopters with tail rotor blades, part number 212-010-750-009 through -129, excluding serial numbers with a prefix of 'A' or 'AFS' and specific numbers listed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 4, 2026
Rights: U.S. Government Public Domain
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