COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES SAAB SF340 Series Aeroplanes AD/SF340/28 Passenger Door Handle 7/91 Applicability: Model SF340A with serial numbers SF340A-004 through -159. Model 340B with serial numbers 340B-160 through -259. Requirement: Action in accordance with LFV AD 1-048. Note: SAAB-Scania SB 340-52-014 refers. Compliance: As specified in the Requirement document with a revised effective date of 11 July 1991 for Australian registered aircraft. Background: Reported cases of cracked spring pins on passenger door handles. This occurrence can make door operation impossible, which could lead to a critical condition in an emergency evacuation. Effective date required by Swedish CAA is extended due to receipt date of directive.