AD Amdt-39-10922
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Air | Tractor, Inc. AT-300, AT-400, and AT-500 Series | Airworthiness Directives; Air Tractor, Inc. AT-300, AT-400, and AT-500 Series Airplanes |
Unsafe Condition
Jack screw breaking through the roll pin hole on the flap actuator overtravel stop, leading to interference between the flap pushrod and the aileron pushrod, which could result in loss of aileron control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the existing flap actuator overtravel stop with a new one of improved design, part number 70975-1, in accordance with Snow Engineering Co. Service Letter #165, dated May 15, 1998.
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Compliance Time
Within the next 50 hours time-in-service (TIS) after the effective date of this AD, unless already accomplished.
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Affected Aircraft
Air Tractor, Inc. Models AT-300, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-401A, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, AT-502A, AT-502B, and AT-503A airplanes, serial numbers 300-0001 through 401B-1063 and 502-0001 through 502B-0500, that do not have part number 70975-1 installed.
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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