AD 85-04-01 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | M7 Aerospace LLC | SA226-AT | Airworthiness Directives; FAIRCHILD Models SA226-T, SA226-T(B), SA226-AT and SA226-TC Airplanes |
| aircraft | M7 Aerospace LLC | SA226-T | Airworthiness Directives; FAIRCHILD Models SA226-T, SA226-T(B), SA226-AT and SA226-TC Airplanes |
| aircraft | M7 Aerospace LLC | SA226-TC | Airworthiness Directives; FAIRCHILD Models SA226-T, SA226-T(B), SA226-AT and SA226-TC Airplanes |
| aircraft | M7 Aerospace LLC | SA226-T(B) | Airworthiness Directives; FAIRCHILD Models SA226-T, SA226-T(B), SA226-AT and SA226-TC Airplanes |
Unsafe Condition
Cockpit fires and hydraulic failures due to insufficient fatigue resistance of certain hydraulic lines and nonmetallic oxygen lines which could leak or have stress cracks.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect hydraulic and oxygen lines for leakage and contamination, clean or replace contaminated or leaking components, inspect electrical wires for contact or inadequate clearance, install phenolic insulators and spiral wraps on wires per service bulletins, modify hydraulic and oxygen systems per specified service bulletins, and adjust inspections within 10% of intervals.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 25 hours time-in-service after the effective date, and within each subsequent interval as specified (e.g., 200 hours time-in-service for recurring inspections).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
FAIRCHILD Models SA226-T, SA226-T(B), SA226-AT (all serial numbers), and SA226-TC (serial numbers below S/N TC398).
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.