AD 55-03-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Kelowna Flightcraft R & D Ltd. | 340 | CONVAIR Model 340 Aircraft |
Unsafe Condition
AN 310-4 nut coming off of the AN 174-33 bolt that attaches the left-hand elevator servo tab idler to the structure, resulting in flutter of the elevator servo tab, subsequent failures at the elevator control system, and loss of elevator control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the control systems for the servo tab on the left elevator and right elevator trim tab on all 340 aircraft, including nuts, bolts, idlers, bellcranks, pushrods, and a general security check of all nuts and bolts.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
As soon as practical but not later than the next 15 hours service
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Affected Aircraft
CONVAIR Model 340 Aircraft, all serial numbers
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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