What was found
FOUND LOWER CABIN POSITIVE PRESSURE RELIEF VALVE MISSING LOWER FLAPPER. UPPER FLAPPER WAS REMOVED AND DEFERED ON LOG 3881765. FLAPPER SHAPE IS HALF CIRCLE OF 3 INCHES RADIUS. LOWER CABIN PRESSURE RELIEF VALVE CDL ON LOG 3881765
- Difficulty date
- March 10, 2025
- Submitted
- March 13, 2025
- Operation
- Air carrier
- Aircraft
- N14106
- Make and model
- Boeing 757224
- Aircraft serial
- 27296
- Aircraft time
- 111,397 hours, 26,234 cycles
- System (JASC)
- 2130 · Cabin Pressure Control System
- Part
- Relief Valve
- Part number
- 1036423
- Part serial
- 3076
- Condition
- Damaged
- Location
- Zone 100
- Part time
- 104,769 hours, 23,616 cycles
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.