What was found
EMERGENCY LIGHT SYSTEM TEST FAILED AFT EPSU. REPLACED AFT EPSU BATTERY PACK PER MM 33-51-38. OPS TESTED GOOD. OK FOR SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EMERGENCY LIGHT SYSTEM TEST FAILED AFT EPSU. REPLACED AFT EPSU BATTERY PACK PER MM 33-51-38. OPS TESTED GOOD. OK FOR SERVICE.