What was found
PRESSURIZATION SYSTEM -FLT ALT KNOB INOP. GROUNDED - YES. CYCLED PRESSURIZATION PANEL C/B PRESSURIZATION PANEL -OPS CHECK GOOD IAW B737-900 AMM 21-31-00.
- Difficulty date
- February 21, 2019
- Submitted
- February 23, 2019
- Operation
- Air carrier
- Aircraft
- N431AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 43255
- Aircraft time
- 21,243 hours, 6,993 cycles
- System (JASC)
- 2130 · Cabin Pressure Control System
- Part
- Knob
- Condition
- Inoperative
- Location
- Cabin Pressure
- 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.