What was found
(AUS) PRESSURISATION SYSTEM OUTFLOW VALVES SLIGHTLY OPEN. INVESTIGATION COULD FIND NO CAUSE OF THE DEFECT. THE CABIN PRESSURE CONTROLLERWAS REPLACED BUT FOUND TO SERVICEABLE WHEN WORKSHOP TESTED.
- Difficulty date
- June 20, 2001
- Submitted
- August 7, 2001
- Operation
- General aviation
- Make and model
- Boeing 747338
- Engine
- Rroyce RB211524D419
- System (JASC)
- 2131 · Cabin Pressure Controller
- Part
- Controller
- Part number
- 7120977
- Condition
- Faulty
- Location
- Cabin Pressure
- Component
- Cabin Pressure
- Stage of operation
- CR
- 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.