As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#1 ENG HAS NO EGT RISE AFTER START LEVER TO IDLE WITH IGN R. #1 ENG STARTS OK WITH IGN L. GROUNDED - YES. REMOVED AND REPLACED MAIN IGNITER PLUG #1 ENGINE REFB737-800 AMM 74-21-02. OPS CHECK OOD. NO DEFECTS NOTED. REMOVED AND REPLACED #1 ENGINE TOP IGNITION EXCITER (RH) REF AMM 74-11-01. OPS CHECK GOOD. VERIFIED EGT RISE DURING ENGINE RUN. ETOPS GROUND VERIFICATION C/W. SCM78656.