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/F50/29 Elevator and Tab Pulley Bracket - Frame 3100 13/89
Applicability: F27 Mk50 aircraft, serial numbers 20103 through 20108 and 20110 through 20152. Requirement: Action in accordance with Fokker Service Bulletin F50-27-017, dated 1 September
1989.
Note: RLD BLA 89-106, dated 25 September 1989 refers.
Compliance: Prior to accumulating 15000 flight cycles.
Background: Fatigue tests on a test assembly of the subject pulley bracket revealed insufficient fatigue life. This AD calls for the replacement of the bracket with a redesigned one.