As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ABORTED #1 ENGINE START IGNITION ON RIGHT SIDE, MOVED IGNITION SWITCH TO LEFT SIDE, GOT A GOOD #1 ENGINE START. GROUNDED - YES. FOUND MAINT MESSAGE 74-42541. ACCOMPLISHED B737-9 IFIM TASK G74-00-00-810-839 INITIAL EVAL. ACCOMPLISHED #1 ENGINE IGNITION TEST 18 B737-9 AMM G71-00-00-730-804-GOO AND TEST 19 AMM 71-00-00-730-805-G00. BOTH TEST PASSED. ACCOMPLISHED #1 ENGINE START WITH IGNITION RIGHT. OPS CHECK GOOD.