What was found
AIR TURNBACK DUE TO LOSS OF CABIN PRESSURE.(<P>R+R SMOKE OVERIDE VALVE PER AMM 21-58-06, OPS CHECK GOOD.</P>)
- Difficulty date
- April 2, 2025
- Submitted
- April 4, 2025
- Operation
- Air carrier
- Aircraft
- N858GT
- Make and model
- Boeing 74787UF
- Aircraft serial
- 37569
- Aircraft time
- 57,457 hours, 8,953 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Valve
- Part number
- 4203651
- Part serial
- 728A
- Condition
- Malfunctioned
- Location
- Zone 100
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A, I
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.