As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AISLE ILLUMINATION EMERGENCY LIGHTS FROM ROW 34 TO 41 WONT LIGHT UP DURING EMERGENCY LIGHT TEST SWAPPED AFT BATTERIES PACKS TO IDENTIFY FAULT. NO HELP. MAY REQUIRE A NEW POWER SUPPLY. REMOVED AND REPLACED EMERGENCY LIGHT POWER SUPPLY IAW MM 33-51-07-022-020 OPERATIONAL CHECK SATISFACTORY OK TO CONTINUE