What was found
LEFT ENGINE BLEED CYCLED ON AND OFF. COULD NOT MAINTAIN PRESSURE. REPLACED THE LT PRSOV AND RT SAFETY VALVE. SYSTEM OPERATES NORMAL.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT ENGINE BLEED CYCLED ON AND OFF. COULD NOT MAINTAIN PRESSURE. REPLACED THE LT PRSOV AND RT SAFETY VALVE. SYSTEM OPERATES NORMAL.