What was found
MEDIUM POPING NOISE THEN PRESS BECOME OUT OFF CONTROL. ALTITUDE 11000 TO 12000 BOOT CLIMBING. R & R NON RETURN VALVE SPRING ACTION ASSY IAW JIC NR 21-22-25. PERFORMED PRESS. CK FOUND SATISFACTORY AT THIS TIME.
- Difficulty date
- March 16, 2010
- Submitted
- March 19, 2010
- Operation
- Air carrier
- Aircraft
- N348AT
- Make and model
- Aerosp ATR72212
- Aircraft serial
- 349
- Aircraft time
- 30,978 hours, 34,181 cycles
- System (JASC)
- 2130 · Cabin Pressure Control System
- Part
- Check Valve
- Part number
- 41125A01
- Condition
- Failed
- Location
- Cabin Pressure
- Stage of operation
- CL
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.