What was found
INSPECTION TYPE-N/A, PERFORMED PRECAUTIONARY SHUTDOWN OF NR 4 ENGINE DUE TO START VALVE LIGHT ILLUMINATION. REPLACED NR 4 START VALVE PRESSURE SWITCH.
- Difficulty date
- October 15, 1996
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N671UP
- Make and model
- Boeing 747123
- Aircraft serial
- 20323
- Engine
- Pwa JT9D7A
- System (JASC)
- 8012 · Engine Start Valves/Controls
- Part
- Pressure Switch
- Part number
- 214N411B
- Condition
- Defective
- Location
- Nr 4 Engine
- Stage of operation
- CR
- Nature of condition
- J
- Precautionary procedure
- E
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.