As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EXTERIOR EMERGENCY LIGHT AT DOOR 1R INOP. SOCKET WAS CLEANED AND LIGHT RELAMPED, NO HELP. OTHER LIGHTS ON THIS BATTERY PACK CHECK GOOD. LIKELY A FUSE OR POWER SUPPLY UNIT PROBLEM. WILL NEED TO REMOVE THE 1ST ROW RIGHT SIDE 1ST CLASS SEAT ASSY FOR ACCESS TO THE DADO PANEL AND POWER SUPPLY UNIT. REPLACED PWR SUPPLY. SLIDE LIGHT OPS CHECKS GOOD.