What was found
AIR TURNBACK-- AT LIFT OFF FIRE BELL AND RED FIRE ANNUNCIATOR CAME ON. REMOVED AND REPLACED FIRE DETECTOR UNIT MODULE PER MM.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIR TURNBACK-- AT LIFT OFF FIRE BELL AND RED FIRE ANNUNCIATOR CAME ON. REMOVED AND REPLACED FIRE DETECTOR UNIT MODULE PER MM.