As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAINTENANCE REPORTED THE EMERGENCY LIGHT TEST FAILED STEP 15 IN WEEKLY CHECK. CIDS GAVE MESSAGE EMERGENCY POWER SUPPLY UNIT INTERNAL LOAD EXIT LT 33-51-38. R & R EMERGENCY POWER SUPPLY UNIT EMERGENCY LIGHTS OPERATIONS CHECKED GOOD IAW AMM 33-51-00-710-001-A.