What was found
AFTER ENG START L BLEED OFF MSG W/NO ENG A/I AVAILABLE. RETURNED TO GATE. SWAPPED L HPSOV/LPRV NO HELP. REPLACED PRV CONTROLLER. REACTIVATED L HPSOV. RAN ENGINE. BLEED SYSTEM OPERATES NORMALLY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AFTER ENG START L BLEED OFF MSG W/NO ENG A/I AVAILABLE. RETURNED TO GATE. SWAPPED L HPSOV/LPRV NO HELP. REPLACED PRV CONTROLLER. REACTIVATED L HPSOV. RAN ENGINE. BLEED SYSTEM OPERATES NORMALLY.