COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES AMD Falcon 10 Series Aeroplanes AD/AMD 10/15 Pilot Seats Locking Systems - Inspection and Modification Applicability: All Falcon 10 series with S/Nos. 1 to 104 except 50, 91, 93, 98, 101 and 103. Document: AMD SB BA F10-0143 R1. (F10-25-008). Compliance: Within 300 hours time in service after 31 March 1980. 3/80 Background: Locking spigots may jam in the high position and/or the penetration of the spigots into the seat rail in the locked position may be insufficient to withstand high loads.