What was found
NR 3 ENGINE HAD A OVERHEAT ON THE BLEED VALVE. VALVE CLOSED, THROTTLED BACK, LIGHT WENT OUT. FOUND NR 3 ENGINE PRECOOLER CRACKED APPROXIMATELY 5 INCHES LONG. REMOVED AND REPLACED PRECOOLER PER M/M 36-12-01.
- Difficulty date
- August 23, 1997
- Submitted
- March 26, 2000
- Operation
- Air carrier
- Aircraft
- N851FT
- Make and model
- Boeing 747122
- Aircraft serial
- 19756
- System (JASC)
- 3610 · Pneumatic Distribution System
- Part
- Precooler
- Part number
- 1894401
- Condition
- Cracked
- Location
- Nr 3 Engine
- Stage of operation
- CR
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.