AD 2007-25-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Textron | Canada Limited Model 206A and 206B | Airworthiness Directives; Bell Helicopter Textron Canada Limited Model 206A and 206B Helicopters |
| aircraft | Bell | Helicopter Textron Canada Limited Model 206A and 206B | Airworthiness Directives; Bell Helicopter Textron Canada Limited Model 206A and 206B Helicopters |
Unsafe Condition
Failure of the two-piece vertical stabilizer (fin) supports, leading to improper torque of the fin supports' attachment hardware, gaps between the fin support bracket and the doubler, painted mating surfaces of the fin supports, vertical fin, and vertical fin inserts, and cracking in the fin supports, which could result in the vertical fin rotating into the tail rotor, separation of the tail rotor, and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Insert Revision 4 of BHT-206A/B-SERIES-MM into the maintenance manual. Verify the torque on the fin support attachment hardware. Inspect the fin support bracket and fins for paint or gaps. Inspect the fin support bracket for cracking. If a crack is found, replace the two-piece vertical fin support with a one-piece casting support.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 90 days after the effective date of this AD, unless accomplished previously, and thereafter at intervals not to exceed 100 hours time-in-service (TIS) or at each annual inspection, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bell Helicopter Textron Canada Limited Model 206A and 206B helicopters, serial numbers 0004 through 3906, with two-piece vertical stabilizer (fin) supports, part number (P/N) 206-031-417-003 or -007, or P/N 206-031-418-001 or -005, 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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