As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS - A/C FAULTING IGN EXC B. DUE TO HISTORY WITH C/B 2EH2 TRIPPING IN FLIGHT RPLACE ENG2 IGN UNIT 1 4000EH1 PER TSM 73-25-81-810-901-A. REMOVED AND REPLACED ENGINE 2 IGNITION UNIT 1 (4000EH1) PER AMM 74-11-34. IGNITION TEST GOOD. PN OFF/ON 430154, SN OFF J12430021, SN ON J12350109.