What was found
FLT#1621, LHR-BOS. (ETOPS) L1 TSI - ENG 1 IGN A FAULT, APPROVAL REQUIRED FOR RESOLUTION, DUE TO PREVIOUS ENGINE 1 IGNITION A FAULT IN LHR AND THE INABILITY TO MEL SYSTEM A ON THE ETOPS FLEET PLEASE REPLACE ENG#1 SYSTEM A EXCITER, IGNITER AND LEAD REF AMM 74-11-01, 74-21-01 AND 74-21-61. ENSURE ALL GMM AND RII REQUIREMENTS ARE COMPLIED WITH; (RESOLVED ON W/O: 1439029 TASKCARD: NR-00002) REMOVED AND REPLACED BOTH IGNITER PLUGS PER EMM 74-21-01, REMOVED AND REPLACED IGN-A LEAD PER EMM 74-21-61 & R/R'D IGN EXCITER PER EMM 74-11-01. OPS CK'D SATIS AND NO FURTHER ISSUE WAS OBSERVED.