As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SIX EACH NEW FIRE DETECTORS INSTALLED IN JUNE '98 AT 8,233.9 HOURS. FAILED NOVEMBER '98 AT 8,389.4 HOURS. FAILED DEC '98 AT 8,394.4 HOURS. BOTH DETECTORS CAUSED IDENTICAL PROBLEMS. 'FIRE LIGHT FLICKER ON TAKEOFF'. WHEN TROUBLESHOOTING WIRING, LIGHT WOULD FLICKER WHEN MOVING WIRING HARNESS ENTERING DETECTORS. BELIEVE POSSIBLE BREAKDOWN IN SEALANT USED TO ISOLATE CONNECTORS INTERNALLY.