As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FIRE EXT 1 CIRCUIT BREAKER POPPED DURING FLIGHT. REVIEWED AIRCRAFT HISTORY BACK 90 DAYS NO ISSUES WITH APU FIRE EXT 1 CB INSPECTED WITH NO SIGN OF DAMAGE TO CB RESET BREAKER REF GMM 06-1-250, CB REMAINED CLOSED PERFORMED B767 FIM 26-15 FAULT TREE 803 APU FIRE DETECTION SYSTEM BITE PROCEDURE SYSTEM TESTED OK.