What was found
DURING HEAVY MAINTENANCE, SECONDARY FINDING FAULT MESSAGE ON PTP EPSU FWD ; REF AE NR 2022-48313, W/O 2022-16/1. REMOVED AND REPLACED BATTERY OF EPSU 10WL I.A.W. AMM 33-51-38-000-002-A AND AMM 33-51-38-400-002-A, PERFORMED OPERATIONAL CHECK OF EMERGENCY POWER SUPPLY UNIT BY BITE CHECK I.A.W. AMM 33-51-00-710-001-A. CHECK IS OK. WORK DONE BY 90669, CK'D BY 8623917.