AD 71-11-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | FH1100 Manufacturing Corporation | 1100 | Airworthiness Directives; Fairchild Hiller Models FH-1100 and 1100 Helicopters |
| aircraft | FH1100 Manufacturing Corporation | FH-1100 | Airworthiness Directives; Fairchild Hiller Models FH-1100 and 1100 Helicopters |
Unsafe Condition
The VNE placard may not properly indicate the maximum never-exceed airspeed of 80 MPH IAS, and stabilizers with part numbers 24 62001 or 24 62001 31 may not be modified to prevent flutter or structural failure at higher speeds.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install the placard 'VNE NOT TO EXCEED 80 MPH IAS' before next flight. Remove the placard if stabilizers are modified. Modify stabilizers per Service Bulletin FH 1100 62 6 within 100 hours' time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before next flight and within 100 hours' time in service after receipt of this message.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fairchild Hiller Models FH-1100 and 1100 helicopters with short stabilizers, P/N 24 62001, or extended stabilizers, P/N 24 62001 31.
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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