What was found
AIR TURNBACK/DECLARED EMERGENCY - AT FL 370 NOTICED CABIN / ALT CLIMBING TOWARD 10,000 AND UNCONTROLLABLE LOST CABIN PRESSURE AND RETURNED TO DENVER. REMOVED AND REPLACED VALVE PER MM.
- Difficulty date
- January 12, 2013
- Submitted
- January 18, 2013
- Operation
- Air carrier
- Aircraft
- N902WB
- Make and model
- Boeing 7377H4
- Aircraft serial
- 36615
- Aircraft time
- 18,468 hours, 10,902 cycles
- System (JASC)
- 2130 · Cabin Pressure Control System
- Part
- Valve
- Part number
- 4140
- Condition
- Failed
- Location
- Ac Bay
- Stage of operation
- UK
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- C
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.