What was found
CREW REPORTED UNABLE TO PRESSURIZE AIRCRAFT. RETURNED TO ORD AND LANDED WITHOUT INCIDENT. REPLACED LEFT AIR CONDITIONING FLOW CONTROL VALVE AND RIGHT AIR CONDITIONING PRESSURE REGULATOR SHUT OFF VALVE.
- Difficulty date
- December 30, 2009
- Submitted
- June 29, 2010
- Operation
- Air carrier
- Aircraft
- N966TW
- Make and model
- Doug DC983
- Aircraft serial
- 53616
- Aircraft time
- 30,447 hours, 14,626 cycles
- System (JASC)
- 2150 · Cabin Cooling System
- Part
- Control Valve
- Part number
- 39613011
- Condition
- Failed
- Location
- Ac System
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.