As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENG START ENG 1 AUTO SHUTDOWN REMOVED AND REPLACED THE HMU ON THE NR 1 ENGINE IAW MM 73-21-10. PERFORMED REQUIRED TESTS (3A,12 AND 13). OPS AND LEAK CHECKED GOOD. ALSO RAN ENGINES AT TAKEOFF POWER ALL PARAMETERS NORMAL AT THIS TIME.