What was found
DURING CLIMB AUTO FAIL AND ALTN LIGHT ILLUMINATED. COMPLIED WITH QRH. NORMAL OPS. GROUNDED - YES. PER FIM TASK 21-31-802 REMOVED AND REPLACED OUTFLOW VALVE REF AMM 21-31-03-000-801. OPS TESTS GOOD.
- Difficulty date
- October 17, 2018
- Submitted
- October 22, 2018
- Operation
- Air carrier
- Aircraft
- N534AS
- Make and model
- Boeing 737890
- Aircraft serial
- 35202
- Aircraft time
- 30,654 hours, 8,934 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Part number
- 40631997201AA
- Part serial
- 107328XT
- Condition
- Failed
- Location
- Cabin Pressure
- Part time
- 8,586 hours, 2,486 cycles
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.