oks and operating instructions have been made available to the flight crew. FAA Advisory Circular AC 20-138 Complies with reference to AC 20-678 for Appollo SL 60 as applicable. FAA Advisory Circular AC 43-13-18 Chapter 7 Section 2.3.4 &5 Chapter 10.11 Section 3.4.5.6.7.8.15.17 Chapter 12 & AC 43-13 1A Chapte