As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
APU FAULT PANEL APPEARS TO HAVE BURNT. FELT HOT TO THE TOUCH. REMOVED APU AND VISUALLY INSPECTED WIRING AND COMPONENTS, NO DEFECTS NOTED. DIDN'T DETECT ANY ELECTRICAL BURNED ODORS. REINSTALLED THE APU PANEL AND OPERATED APU FOR 30 MIN WITH ALL APU PANEL LIGHTS ON, NO OVERHEATING DETECTED. SYS OPS CKS NORMALLY AT THIS TIME REF MM 33-00-00.