COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Fairchild (Swearingen) SA226 and SA227 Series Aeroplanes AD/SWSA226/44 Main Landing Gear Door System - Inspection 1/83 Applicability: Models SA226-T(B), S/N T(B)276, T(B)292 thru T(B) 397. SA226-T, S/N T201 thru T275 and T277 thru T291. SA226-AT, S/N AT001 thru AT074. SA226-TC, S/N TC201 thru TC396. Document: Fairchild Swearingen SB No. 32-026. Note: FAA AD 82-23-06 Amendment 39-4493 refers. Compliance: Unless already accomplished, within 100 hours time in service after 31 January, 1983. Background: Shifting of the main landing gear doors has occurred which resulted in the landing gear locking in the up position.