AD 78-08-08
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron, Inc. | 214B | Airworthiness Directives; Bell Model 214B and 214B-1 Helicopters |
| aircraft | Bell Helicopter Textron, Inc. | 214B-1 | Airworthiness Directives; Bell Model 214B and 214B-1 Helicopters |
Unsafe Condition
Cracks in the tail fin forward spar and left side cap angle could lead to failure of the tail fin and boom.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Conduct daily inspections of the tail fin forward spar, left side cap angle, and spar web until the modification is done. Inspections involve removing the gear box cover, cleaning and inspecting for cracks with a magnifying glass or dye penetrant. If cracks are found, replace the tail boom and fin with modified parts. Modify the tail boom and fin by July 30, 1978, using Bell Drawing No. 214-961-151 or approved equivalent.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before the first flight of each day after April 21, 1978, for inspections; on or before July 30, 1978, for modifications.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Bell Model 214B and 214B-1 helicopters, serial numbers 28001 through 28024 and 28032 through 28036.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.