COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Transavia PL 12 Series Aeroplanes AD/PL 12/19 Stub Wing Internal Structure - Inspection and Re-Protection 7/80 Applicability: All PL-12 Series. Document: Transavia SB No. 30. Compliance: 1. For aircraft which have achieved 3 years time in service since manufacture, initially inspect not later than the next major inspection and thereafter in accordance with SB No. 30. 2. For other aircraft, initially inspect not later than next major inspection after achieving 3 years time in service after manufacture and thereafter in accordance with SB No. 30. Background: Corrosion of the interior structure of the steel stub wing has been observed in some aircraft.