As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
KLAX - APU 'A' FIRE DETECTOR FLICKERED ON AND OFF IN FLIGHT. AURAL WARNING ACCOMPANIED BY FLICKERING LIGHT, SWITCH WAS IN BOTH, SWITCHED TO 'B' PROBLEM WENT AWAY. CLEANED CONTAMINATED CONNECTORS AND RESECURED. OPS CHECK GOOD 26-10-00. (M)