Service difficulty report · Outflow Valve · Boeing 72721C
FAA SDR system
- Difficulty date
- March 2, 2000
- Submitted
- March 3, 2000
- Operation
- Air carrier
- Aircraft
- N705A
- Make and model
- Boeing 72721C
- Aircraft serial
- 19134
- Aircraft time
- 50,079 hours, 53,693 cycles
- Part
- Outflow Valve
- Part number
- 10328051
- Part serial
- 281669
- Condition
- Leaking
- Location
- Fuselage
- Part time
- 1,262 hours, 733 cycles
- Stage of operation
- CL
- How discovered
- O
- Nature of condition
- O
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO MAINTAIN CABIN PRESSURE WITH ONE PACK VALVE OPERATING. REMOVED AND REPLACED LT OUTFLOW VALVE IAW B727 21-30-51, OPS CHECK AND LEAK CHECK NORMAL. REMOVED AND REPLACED EQUIPMENT COOLING FLOW CONTROL VALVE IAW B727MM 21-58-21, OP''S CHECK NORMAL. PERFORMED PRESSURIZATION CHECK IAW B727MM 21-30-0, NO DEFECTS NOTED.