As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AISLE PATH FLOOR STRIP BY LAVATORY 2L, OTBD REMAINS ON & ALSO EXIT SIGN. TROUBLE SHOT IAW SSM 33-51-01 & WDM 33-51-13. FOUND L979, EXIT SIGN, & AISLE PATH FLOOR STRIP AT LAVATORY 2L TO BOTH HAVE THE SAME POWER SUPPLY M1561. R & R M1561 EE LT BATTERY SUPPLY AS PRECAUTIONARY. ALL WIRING CHECKS OUT OK.