COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Beechcraft 55, 58 and 95-55 (Baron) Series Aeroplanes AD/BEECH 55/83 Outflow/Safety Valve 3/98 Applicability: Model 58P and 58PA aircraft, serial numbers TJ-3 through TJ-497. Requirement: Inspect and if necessary replace the outflow/safety valve in accordance with the procedures detailed in Beech SB 2484 Rev 1 dated October 1995. No person shall install on any aircraft any Outflow/Safety Valve found to be unserviceable in accordance with this directive. Note: FAA AD 97-25-01 Amdt 39-10224 refers. Compliance: Within 200 hours' time in service or 4 months, whichever occurs first, from the effective date of this directive. This airworthiness directive becomes effective on 26 February 1998. Background: Manufacturing problems with the safety valve may cause a rapid decompression of the aircraft should a valve failure occur.