What was found
ETOPS SIGNIFICANT SYSTEM - UPON ENGINE SHUTDOWN AT GATE WITH APU RUNNING APU GENERATOR DID NOT TRANSFER POWER FROM ENGINE GENERATOR. AIRCRAFT LOST POWER, PERFORMED ECAM APU GEN RESET, OPS NORMAL. // PERFORMED APU BITE PER AMM 49-00-00-740-801A & OPS TEST OF APU GENERATOR PER AMM 24-23-51-400-801A, ALL TESTS PASSED. NOTE : FOUND APU OIL LEVEL LOW, SERVICED APU OIL TO FULL PER AMM 12-13-49-612-801A APU START AND OPS NORMAL, NO LEAKS NOTED.