What was found
CABIN ALTITUDE WARNING AT FL 340. REMOVED AND REPLACED BOTH NR 1 AND 2 AUTO PRESSURE CONTROLLERS PER MM 21-31-02-4, BOTH OPS CHECK GOOD. ALSO RIGHT PACK FLOW CONTROL VALVE CHANGED ON WRI 2130-7144.
- Difficulty date
- August 25, 2020
- Submitted
- August 25, 2020
- Operation
- Air carrier
- Aircraft
- N990FD
- Make and model
- Boeing 757230
- Aircraft serial
- 22909
- Aircraft time
- 85,383 hours, 43,460 cycles
- System (JASC)
- 2131 · Cabin Pressure Controller
- Part
- Controller
- Part number
- 211738813
- Condition
- Failed
- Location
- Cabin Pressure
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- I
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.