What was found
FLT ALT SELECTOR KNOB INTERMITTENTLY SELECTS DESIRED ALTITUDE. GROUNDED - YES. REMOVED AND REPLACED CABIN PRESSURE CONTROL MODULE, OPS CK GOOD REF B737-800 AMM 21-31-02.
- Difficulty date
- November 1, 2018
- Submitted
- November 6, 2018
- Operation
- Air carrier
- Aircraft
- N589AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35686
- Aircraft time
- 41,830 hours, 12,620 cycles
- System (JASC)
- 2130 · Cabin Pressure Control System
- Part
- Control Module
- Part number
- 8243921003
- Part serial
- 2007089503
- Condition
- Intermittent
- Location
- Cabin Pressure
- Part time
- 35,711 hours, 12,427 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.