What was found
WHEN AUTOMATIC PRESSURIZATION REACHES 4.0 PSI, CABIN RATE GOES UP AND DOWN 72000 FT/MIN. REPLACED PNEUMATIC OUTFLOW VALVE IAW CARD RII 21-303. OPS CHECK GOOD. P/N: 2093K010800, S/N ON: 075, S/N OFF: 395.
- Difficulty date
- April 23, 2001
- Submitted
- April 24, 2001
- Operation
- Air carrier
- Aircraft
- N297SW
- Make and model
- Emb EMB120ER
- Aircraft serial
- 120327
- Aircraft time
- 11,163 hours, 16,181 cycles
- Engine
- Pwa PW118B
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Condition
- Faulty
- Location
- Cabin Pressure
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.