As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS - APU AUTO SHUTDOWN TWICE DURING PREFLIGHT. PERFORMED BITE TEST, FAULTED GEN SCAV AND LUBE FILTERS. REMOVED AND REPLACED BOTH FILTERS IN REF W/ AMM 49-91-41-200-002-A. APU OPS CHECK GOOD. LEAK CHECK GOOD. NO LEAK NOTED. OK FOR SVC.