COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Fokker F50 (F27 Mk 50) Series Aeroplanes
AD/F50/5 Cabin Pressure Control System 1/89
All F27 Mk 50 aircraft serial numbers 20104 to 20108 inclusive, and 20110 to 20112 inclusive.
Action in accordance with the initial issue of Fokker SB F50-21-002.
Dutch AD BLA 88-89 refers.
Prior to 26 April 1989.
The current cabin pressurization system configuration is such that a positive cabin pressure differential can exist on the ground, and can cause the cabin door to blow open when released by ground staff thus potentially damaging the aircraft and injuring personnel.