What was found
EPSU BATTERY FAILED TEST DURING HEAVY SERVICE CHECK, 13WL AFT LT. R & R BATTERY ASSY FOR EPSU 13WL, OPS CHECKED OK IAW AMM 33-51-38-000-002A & AMM 33-51-38-400-002A.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
EPSU BATTERY FAILED TEST DURING HEAVY SERVICE CHECK, 13WL AFT LT. R & R BATTERY ASSY FOR EPSU 13WL, OPS CHECKED OK IAW AMM 33-51-38-000-002A & AMM 33-51-38-400-002A.