What was found
FLT#1620, BOS-LHR. (ETOPS) 'ENG 2 IGN B FAULT ( IGNITION SYSTEMS B) SYSTEM B ); REMOVED & REPLACED ENG #2 IGNITION B IAW AMM 74-31-02 OPS CHECK GOOD MX-4 UPDATED, PLACARD REMOVED.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
FLT#1620, BOS-LHR. (ETOPS) 'ENG 2 IGN B FAULT ( IGNITION SYSTEMS B) SYSTEM B ); REMOVED & REPLACED ENG #2 IGNITION B IAW AMM 74-31-02 OPS CHECK GOOD MX-4 UPDATED, PLACARD REMOVED.