COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES DH114 (Heron) Series Aeroplanes AD/DH114/49 Flap To Flap Jack Connecting Pin 1/89 DM Applicability: All models. Requirement: Action in accordance with BAe TNS CF-20 Issue 1. Compliance: Within seven days time in service after 7 December 1988. Background: Incorrectly manufactured connecting pins have been found in service, one of which caused an in-flight asymmetric flap condition.