COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Gates Learjet 24 & 25 Series Aeroplanes AD/LEARJET/18 Stall Warning System - Adjustment And Test 7/79 Applicability: All models S/Nos. 24-329 to 24-357 and 25-206 to 25-278. When AAK 76-4 reduced approach speed system kit is installed, in models S/Nos. 24-100 to 24-328 and 25-003 to 25-201, 25-204 and 25-205. Document: 1. Learjet SB No. 24/25-294; or 2. FAA AD 79-12-05, Amendment 39-3614, para. B. Compliance: Within 300 hours time in service after 30 September 1979. Background: Deleted S/Nos. 25-202 and 25-203 from the applicability in accordance with FAA AD 79-12-05 Amendment 39-3614.