What was found
CSS INCOMPLETE WITH FAULT LIGHT, FIRST ATTEMPT, FL 370 -60C. FAULT LIGHT EXTINGUISHED AFTER 5 MINUTES. ATTEMPTED SECOND START FL 320 -55, AGAIN FAILED WITH FAULT LIGHT. NO THIRD START ATTEMPT MADE. APU BITE IAW FIM 49-60, TASK 801 SHOWED NO CURRENT FAULTS. FAULT HISTORY SHOWED FAULT CODE 49-31016 LOGGED FOR STARTS OLD 0 AND 1. ONLY OTHER FAULT WAS 49-11019 AND IT WAS 710 STARTS OLD. FAULT CODE 49-31016 OVERTEMP SHUTDOWN REQUIRES T/S IAW FIM 49-30, TASK 803. PERFORMED OVERTEMP SHUTDOWN FAULT ISOLATION IAW FIM 49-30 TASK 803. FAULT DID NOT REOCCUR.