What was found
CREW REPORTED DURING CLIMB AROUND FL330 RECEIVING A CAB ALT MESSAGE. CREW ADVISED ATC OF THE SITUATION DID AN EMERGENCY DESCENT AND RETURNED TO DSM. R&R OUTFLOW VALVE.
- Difficulty date
- December 8, 2018
- Submitted
- December 17, 2018
- Operation
- Air carrier
- Aircraft
- N561NN
- Make and model
- Cndair CL6002D24
- Aircraft serial
- 15346
- Aircraft time
- 9,650 hours, 8,799 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Part number
- GG670980035
- Part serial
- 00901
- Condition
- Failed
- Location
- Cabin Pressure
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- B
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.