AD 2009-25-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Twin | Commander | Airworthiness Directives; Twin Commander Aircraft LLC Models 690, 690A, and 690B Airplanes |
Unsafe Condition
Corrosion between the mating surfaces of the wing upper skin surface and the engine mount beam support straps could result in failure of the engine mount beam support straps, leading to loss of the engine and possible loss of control of the airplane.
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Required Actions
Inspect between the surface of the LH and RH upper wing skins and the engine mount beam support straps for any signs of corrosion. Replace the upper steel straps with parts of improved design. Modify both wings according to specified options.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
Twin Commander Aircraft LLC Models 690, 690A, and 690B airplanes.
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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