As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT ENG START HUNG UP AT 42 PERCENT N2. NO N2 RISE ON SECOND START ATTEMPT. START VALVE LIGHT CYCLED NORMAL. REMOVED AND REPLACED NR 1 ENGINE STARTER PER AMM PERFORMED LEAK CHECK. NO LEAKS NOTED. PERFORMED ENGINE NR 1 RUN UP ALL INDICATIONS NORMAL. ETOPS CATEGORY 'D': INABILITY TO CTRL ENG OR GET DESIRED PWR.