AD 77-17-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Bell Helicopter Textron, Inc. | 204B | Airworthiness Directives; Bell Model 204B, 205A-1, 212, 214B, and 214B-1 Helicopters |
| aircraft | Bell Helicopter Textron, Inc. | 205A-1 | Airworthiness Directives; Bell Model 204B, 205A-1, 212, 214B, and 214B-1 Helicopters |
| aircraft | Bell Helicopter Textron, Inc. | 212 | Airworthiness Directives; Bell Model 204B, 205A-1, 212, 214B, and 214B-1 Helicopters |
| aircraft | Bell Helicopter Textron, Inc. | 214B | Airworthiness Directives; Bell Model 204B, 205A-1, 212, 214B, and 214B-1 Helicopters |
| aircraft | Bell Helicopter Textron, Inc. | 214B-1 | Airworthiness Directives; Bell Model 204B, 205A-1, 212, 214B, and 214B-1 Helicopters |
Unsafe Condition
Failure of the emergency exit latch pin to engage properly could result in the exit not being securely fastened, leading to unintended opening during flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 100 hours' time in service after the effective date, inspect and ensure NAS 43DD3-8 spacers are installed, add one-inch diameter inspection holes with clear view through interior lining, and label the holes. Thereafter, inspect latch mechanisms every 300 hours' time in service to ensure pin ends are flush with the exit frame edge and add painted stripes around each pin.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 100 hours' time in service after the effective date of this AD and thereafter at intervals not to exceed 300 hours' time in service from the last inspection
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Affected Aircraft
Bell Model 204B, 205A-1, 212, 214B, and 214B-1 helicopters, certificated in all categories.
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
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