COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES British Aerospace BAe 125 Series Aeroplanes AD/HS 125/98 Electrical Power - Starting - Hartman Contactor 3/89 Applicability: 1. All BAe 125 series aircraft with Garrett TFE 731 engines. 2. Series 700 aircraft pre mod 256990 (cold start battery series contactor; Aircraft with post mod 252817 part F (SB 24-237-2817) embodied; Series 600 aircraft S/No 256070. Requirement: 1. Applicable to 1. above. Action in accordance with BAe SB 24-268-3223A and B Revision 1 part A. 2. Applicable to 2. above. Action in accordance with BAe SB 24-268-3223A and B Revision 1 part B. Compliance: Prior to 22 June 1989. Background: Overheating and short circuit to earth can occur with this type of relay.