What was found
OUTFLOW VALVE CHATTERING (OSCILLATING) IN ALL MODES OF FLT, SYS 1, 2 AND SEMI AUTO ALL SAME. + OR -200 FPM. GROUNDED - YES. R&R OF OUTFLOW VALVE PER AMM 21-31-51 OPS CHECK GOOD. OK FOR SERVICE.
- Difficulty date
- July 13, 2018
- Submitted
- July 17, 2018
- Operation
- Air carrier
- Aircraft
- N921VA
- Make and model
- Airbus A321253N
- Aircraft serial
- 07589
- Aircraft time
- 4,297 hours, 1,043 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Part number
- 2079020BA
- Condition
- Failed
- Location
- Cabin Pressure
- Stage of operation
- NR
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.