What was found
LOSS OF CABIN PRESSURE. SUPPLEMENTAL DATA UPDATE THE CABIN PRESSURE K8 RELAY HAD A FAILED TRANSISTOR. REPLACED THE CABIN PRESSURE CONTROLLER.
- Difficulty date
- April 6, 2001
- Submitted
- April 27, 2001
- Operation
- Air carrier
- Aircraft
- N321UA
- Make and model
- Boeing 737322
- Aircraft serial
- 23953
- Aircraft time
- 41,012 hours, 21,806 cycles
- Engine
- Ge CFM56*
- System (JASC)
- 2131 · Cabin Pressure Controller
- Part
- Controller
- Condition
- Failed
- Location
- Cabin Pressure
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- B, A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.