What was found
LEFT AIRCRAFT SYSTEM UNABLE TO HOLD CABIN PRESSURE AT 24,000 FEET, FLOW LIGHT WAS ON WITH OUTFLOW VALVE CLOSED. REMOVED AND REPLACED LEFT PACK FLOW CONTROL VALVE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
LEFT AIRCRAFT SYSTEM UNABLE TO HOLD CABIN PRESSURE AT 24,000 FEET, FLOW LIGHT WAS ON WITH OUTFLOW VALVE CLOSED. REMOVED AND REPLACED LEFT PACK FLOW CONTROL VALVE.