AD 76-20-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | M7 Aerospace LLC | SA226-AT | Airworthiness Directives; Swearingen Model SA226-T, SA226-AT, and SA226-TC |
| aircraft | M7 Aerospace LLC | SA226-T | Airworthiness Directives; Swearingen Model SA226-T, SA226-AT, and SA226-TC |
| aircraft | M7 Aerospace LLC | SA226-TC | Airworthiness Directives; Swearingen Model SA226-T, SA226-AT, and SA226-TC |
Unsafe Condition
Fuel or hydraulic leaks in the wheel wells could result in fire or loss of hydraulic system function.
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Required Actions
Inspect hydraulic power pack areas, lines, and fittings in both wheel wells for leakage, pressurize systems to 2000+ psi, and repair or replace damaged components before further flight. Inspect fuel supply lines in wheel wells for leakage using the airframe boost pump and repair leaks before further flight. Submit voluntary written reports of inspection results to the FAA.
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Compliance Time
Within the next 25 hours time in service after the effective date and within each subsequent 50 hours of time in service.
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Affected Aircraft
Swearingen Model SA226-T (Serial Numbers T201-T274), SA226-AT (AT001-AT054), and SA226-TC (TC201-TC228E)
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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