As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FIRE WARNING LIGHT INDICATOR AT NOSE GEAR STEERING BYPASS IS MISSING. RELEASED FOR SERVICE PER MEL : 26-XX-XX CAT C EXP : 16DEC23 APU GROUND AUTO FIRE EXTINGUISHING SYSTEM - INOP. APU OPERATION MUST BE MONITORED FROM COCKPIT WHILE APU IS RUNNING." INSTALLED NEW BULB/LENSE ASSY AND TESTED SYSTEM IAW AMM 23-42-00-05-0 AND AMM 26-22- 00-05. ALL OPS CHECKS GOOD. NO FAULTS NOTED. A/C OK FOR SVC