As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FLIGHT 2308 DURING FLIGHT AT RANDOM TIMES ON APU FIRE CONTROL PANEL AND MASTER WARNING PANEL, BOTTLE LOW LIGHT ILLUMINATED ALONG WITH CHECK FIRE DETECTION LIGHT AND MASTER WARNING LIGHTS ILLUMINATED FOR A VERY SHORT TIME AND DURING CRUISE FLIGHT. SHOOK CONNECTOR AND WIRES TO REAR PRESSURE BULKHEAD AND BULKHEAD CONNECTOR. NO PARTS REPLACE. OPERATIONAL CHECKS GOOD. AIRCRAFT RETURNED TO SERVICE.