What was found
DURING HEAVY MAINTENANCE, FAULT EPSU 10WL; (REF AEROMAN NR 2021 62778 WO 2021 73/1) R & R EPSU BATTERY 10WL IAW AMM 33-51-38 OPS CHECKS OK IAW AMM 33-51-0-710-001-A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY MAINTENANCE, FAULT EPSU 10WL; (REF AEROMAN NR 2021 62778 WO 2021 73/1) R & R EPSU BATTERY 10WL IAW AMM 33-51-38 OPS CHECKS OK IAW AMM 33-51-0-710-001-A