COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Bushby Mustang II Series Aeroplanes
AD/BUSHBY M2/2
Amdt 1
Applicability: All models.
Sta 114.75 Bulkhead Member P/N 240.339 9/90
Requirement: Action in accordance with Bushby Aircraft Inc. Mandatory Mustang II Service Bulletin dated 15 March 1989, or alternate scheme approved by the Authority.
Compliance: Unless previously accomplished - prior to exceeding 100 hours time in service after 25 January 1990.
Background: Bushby Aircraft Inc. considers modification mandatory. Excessive back stick pressure during ground operation causes flexing of bulkhead which can lead to cracking at rivet locations. Amendment 1 considers alternate schemes that may be approved by the Authority.