What was found
EMERGENCY LIGHT TEST FAULT, EPSU COMM AFT L 33-51-38. *S/D* REPLACED AFT LEFT EMERGENCY POWER SUPPLY UNIT (P/N 3214-54-10), (S/N 1576).
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EMERGENCY LIGHT TEST FAULT, EPSU COMM AFT L 33-51-38. *S/D* REPLACED AFT LEFT EMERGENCY POWER SUPPLY UNIT (P/N 3214-54-10), (S/N 1576).