COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES SAAB SF340 Series Aeroplanes AD/SF340/45 Fuselage - Overwing Emergency Exit Beams 5/95 Applicability: SAAB 340B aircraft S/N 324-341, and 347 inclusive. Requirement: Carry out a fluorescent dye penetrant inspection of the fuselage beams, P/N 7253742- 331/ -332, located above the overwing emergency exits. Inspect in accordance with SAAB Service Bulletin (SB) 340-53-047. Note: Swedish AD SAD 1-065 refers. Compliance: Inspect not later than the next 4 000 hours check after 27 April 1995. Background: Cracks have been detected in a production batch of the beams which are installed above the overwing emergency exit. There is a possibility that some of the cracked beams may have been installed on aircraft. This once only inspection will ensure that discrepant beams are detected and removed.