COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Aerospatiale (Socata) TB20 (Trinidad) Series Aeroplanes
AD/TB20/25 Autopilot Master Switch 2/92
All TB20 and TB21 with S/No’s 275 thru 1222 fitted with one of the following options: 668, G668, 669, G669, 670 or G670.
Action in accordance with Aerospatiale SOCATA Service Bulletin No 60.
DGAC AD 91-145A refers.
Prior to the next Maintenance Release after 28 February 1992.
To reduce the risk of a short circuit at the “A/P Master” switch.