As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY ESCAPE SLIDE WARNING LIGHT INOP. CHECKED 28V DC TO EVAUCATION SLIDE WARNING LIGHTS ASSY. FOUND POWER NOT AVAILABLE TO LIGHT ASSY. R & R AUTONOMOUS STBY PWR SUPPLY UNIT CONNECTOR PLUG IAW M/C INSTRUCTIONS. SYS WORKING NORMAL IAW AMM 52-73-00-00. CLEARS DEFERRAL.