What was found
NR 1 ENGINE WOULD NOT START. ACFT GROUNDED. REF FIM TASK 74-21-00-810-807-F00. EEC REPORTS NO FAULTS. RESTORED NR 1 ENGINE RT IGNITER SYS REF AMM TASK 74-00-00-040-802-F00. C/W VISUAL CHECKS OF RT IGNITER, EXCITER, LEAD, AND PLUG. FOUND RT PLUG TO HAVE CARBON BUILD UP. REPLACED RT IGNITER PLUG REF AMM 74-21-02-401. C/W IGNITER SYS AUDIBLE TEST REF AMM 74-00-00-750-801-F00. NO FAULTS FOUND. STARTED NR 1 ENGINE ON RT IGNITER 3 CONSECUTIVE TIMES. NO DEFECTS NOTED.