What was found
PASSING FL 220 CABIN UNABLE TO MAINTAIN PRESSURIZATION. DESCENT INITIATED QRH PROCEDURES ACCOMPLISHED. NO INJURIES OR AIRCRAFT DAMAGE. REPLACED AIRCRAFT OUTFLOW VALVE ASSEMBLY PER M/M. SYSTEM CHECKS NORMAL.
- Difficulty date
- June 13, 2004
- Submitted
- June 14, 2004
- Operation
- Air carrier
- Aircraft
- N375DL
- Make and model
- Boeing 737247
- Aircraft serial
- 23602
- Aircraft time
- 45,929 hours, 35,323 cycles
- System (JASC)
- 2133 · Pressure Regulator/Outflow Valve
- Part
- Outflow Valve
- Part number
- 7110035
- Condition
- Malfunctioned
- Location
- Cabin Pressure
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- J
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.