What was found
WHILE IN FLIGHT AND WITH APU OFF, APU DET LOOP-A ILLUMINATES OCCASIONALLY, SETTING OFF APU FIRE SIGNAL. APU FIRE LOOP-A PLACARDED INOP PER MEL 26-7 ASSIGNED M-103273.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
WHILE IN FLIGHT AND WITH APU OFF, APU DET LOOP-A ILLUMINATES OCCASIONALLY, SETTING OFF APU FIRE SIGNAL. APU FIRE LOOP-A PLACARDED INOP PER MEL 26-7 ASSIGNED M-103273.