As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE BLEED ISSUE. ON SHUT DOWN LT HPSOV BLEED LIGHT ON. REPLACED HPSOV AND CHECKED IAW AMM, NO FAULT PRESENT. AFTER ENG START, UNABLE TO GET ANY BLEED PRESSURE OFF LT ENG. CYCLED LT ENG BLEED CONTROL CB AND NO HELP. REPLACED PRESSURE REGULATING AND SHUTOFF VALVE IAW MM. PNEUMATIC PRESSURE NORMAL.