As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI OUT TO DEPART, THE LEFT ENGINE STALLED THEN FAILED AFTER MINOR POWER UP. THE AIRCRAFT RETURNED TO THE GATE. REPLACED EEC AS PER AMM 73-21-34PB401. REPLACED ALL 7 (4IP/3HP) BLEED VALVES PER AMM 75-33-42/75-33-43. GROUND RUN CHECKED SERV. OTHER PART NUMBERS: IP BLEED VALVE P/N AC69590, MFG: DUNLOP EQUIPMENT DIVISION HP BLEED VALVE P/N AC69588, MFG: DUNLOP EQUIPMENT DIVISION.