What was found
PRESSURIZATION CONTROLLER PANEL WAS BLANK, NO INDICATIONS. ACFT GROUNDED. CYCLED POWER TO CPC MODULE AND OPS CHECKED NMR IAW FIM 21-31 TASK 803. ALL GROUND FUNCTIONAL TESTS PASSED.
- Difficulty date
- September 4, 2017
- Submitted
- September 5, 2017
- Operation
- Air carrier
- Aircraft
- N493AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 41727
- Aircraft time
- 5,438 hours, 1,841 cycles
- System (JASC)
- 2130 · Cabin Pressure Control System
- Part
- Control Panel
- Condition
- Malfunctioned
- Location
- Cabin Pressure
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- P
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.