What was found
PRIOR TO DESCENT PRESSURIZATION PANEL WENT DARK. ACFT GROUNDED. REMOVED AND REPLACED THE CABIN PRESSURE CONTROL MODULE IAW AMM 21-31-02-000-801, AND 21-31-02-400-801. ALL TESTS OK.
- Difficulty date
- December 22, 2017
- Submitted
- December 26, 2017
- Operation
- Air carrier
- Aircraft
- N481AS
- Make and model
- Boeing 737990ER
- Aircraft serial
- 44106
- Aircraft time
- 9,562 hours, 3,220 cycles
- System (JASC)
- 2130 · Cabin Pressure Control System
- Part
- Control Panel
- Part number
- 10194391001
- Part serial
- 2015080023
- Condition
- Failed
- Location
- Cabin Pressure
- Part time
- 8,354 hours, 2,796 cycles
- Stage of operation
- CR
- 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.