As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L ENG BLEED OFF ILLUMINATED AFTER PUSH BACK. REMOVED AND REPLACED #1 ENGINE PRVC IAW AMM 36-11-19 AND RESET ALL CB'S IAW AMM 36-11-19. LEAK CK, OPS CK GOOD. MAINT ACTIONS REVERSED. RAN ENGINES IAW AMM 71-00-00. BLEED SYSTEM OPERATES GREAT.