What was found
CANNOT ADJUST FLT ALTITUDE ON PRESSURIZATION CONTROLLER. ACFT GROUNDED. REMOVED AND REPLACED CABIN PRESSURE CONTROL MODULE, IAW AMM 21-31-02-400. CONTROL MODULE CHECKS OK, IAW AMM 21-31-00-700-802 & 21-31-00-710-801.
- Difficulty date
- July 24, 2016
- Submitted
- July 26, 2016
- Operation
- Air carrier
- Aircraft
- N557AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35176
- Aircraft time
- 38,824 hours, 11,447 cycles
- System (JASC)
- 2131 · Cabin Pressure Controller
- Part
- Controller
- Part number
- 8243922003
- Part serial
- 06021675
- Condition
- Failed
- Location
- Cabin Pressure
- Part time
- 35,817 hours, 10,521 cycles
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.