What was found
FILTER BYPASS LIGHT & OIL PRESSURE LIGHT ILLUMINATED (FLICKERING). EXTINGUISHED WHEN #1 THROTTLE RETARDED TO IDLE. RETURNED FOR LANDING. FILTER PYPASS REPLACED IN ORD INITIALLY BY MX. REPLACED PRESSURE VALVE.
- Difficulty date
- July 15, 2001
- Submitted
- July 17, 2001
- Operation
- Air carrier
- Aircraft
- N859FT
- Make and model
- Boeing 747123
- Aircraft serial
- 20326
- System (JASC)
- 7930 · Engine Oil Indicating System
- Part
- Bypass Valve
- 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.