COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700) Series Aeroplanes
AD/AC/1 Wing Rib - Reinforcement NK
Applicability: Model 520: S/Nos. 520-81 to 520-86 plus -89 and -92. Document: Aero Commander SB No. 20.
Compliance: Forthwith.