AD 93-07-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | M7 Aerospace LLC | SA226-AT | FAIRCHILD AIRCRAFT (formerly Swearingen Aircraft Corporation) SA226-T, A226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AC and SA227-AT Airplanes |
| aircraft | M7 Aerospace LLC | SA226-T | FAIRCHILD AIRCRAFT (formerly Swearingen Aircraft Corporation) SA226-T, A226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AC and SA227-AT Airplanes |
| aircraft | M7 Aerospace LLC | SA226-TC | FAIRCHILD AIRCRAFT (formerly Swearingen Aircraft Corporation) SA226-T, A226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AC and SA227-AT Airplanes |
| aircraft | M7 Aerospace LLC | SA226-T(B) | FAIRCHILD AIRCRAFT (formerly Swearingen Aircraft Corporation) SA226-T, A226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AC and SA227-AT Airplanes |
| aircraft | M7 Aerospace LLC | SA227-AC (C-26A) | FAIRCHILD AIRCRAFT (formerly Swearingen Aircraft Corporation) SA226-T, A226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AC and SA227-AT Airplanes |
| aircraft | M7 Aerospace LLC | SA227-AT | FAIRCHILD AIRCRAFT (formerly Swearingen Aircraft Corporation) SA226-T, A226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AC and SA227-AT Airplanes |
| aircraft | M7 Aerospace LLC | SA227-TT | FAIRCHILD AIRCRAFT (formerly Swearingen Aircraft Corporation) SA226-T, A226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AC and SA227-AT Airplanes |
Unsafe Condition
Failure of the horizontal stabilizer rear spar, which could result in loss of control of the airplane.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within the next 50 hours time-in-service (TIS), inspect the horizontal stabilizer rear spar for cracks using dye penetrant per specified service bulletins. Repair any cracks prior to further flight. Modify the outboard hinge within 2,200 hours TIS per applicable service bulletins.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Required as indicated after the effective date of this AD, unless already accomplished within the last 450 hours TIS.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Fairchild Aircraft (formerly Swearingen Aircraft Corporation) SA226-T, SA226-T(B), SA226-AT, SA226-TC (all serial numbers); SA227-TT (TT421 through TT527); SA227-AC (AC406, AC415, AC416, AC420 through AC509, AC511 through AC530); SA227-AT (AT423 through AT524).
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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