AD 2013-08-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Aviat | Various | Airworthiness Directives; Grob-Werke Airplanes |
Unsafe Condition
Cracks in the elevator trim tab arms (Part Number 115E-3758) on several Grob G 115 airplanes, from a rear mounting hole to the rear edge of the trim tab arm, could result in failure of the part and consequent loss of control.
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Required Actions
Inspect both left hand (L/H) and right hand (R/H) elevator trim tab arms, part number 115E-3758, using a nondestructive testing (NDT) method such as dye-penetrant or eddy-current. If a crack is found, replace the affected trim tab arm with part number 115E-3758/1 before further flight. Replacement of both trim tab arms with P/N 115E-3758/1 will terminate the repetitive inspection requirement.
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Compliance Time
Within 50 hours time-in-service (TIS) after May 23, 2013, and repetitively thereafter at intervals not to exceed 200 hours TIS.
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Affected Aircraft
Grob-Werke G115EG airplanes, all serial numbers, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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