COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
SAAB SF340 Series Aeroplanes
AD/SF340/21 Auto-Coarsening 2/91 DM
Applicability: All SAAB SF340 Series aircraft S/No 004 through 159 inclusive.
Requirement: Action in accordance with the technical requirements of FAA AD 90-21-16 Amdt 39- 6763.
Note 1: This directive cancels AD/SF340/13.
Note 2: Swedish AD No 1-037 refers and cancels Swedish AD No 1-028.
Compliance: Prior to 30 April 1991
Background: As previously incorporated Electrical Control Unit (ECU) modifications may affect single engine climb performance. The FAA, Swedish Airworthiness Authority and the Aircraft Manufacturer requires these modifications to be removed and a modified ECU to be installed.