What was found
NR 1 ENGINE HOC. FOUND NR 1 ENG FUEL-OIL HEAT EXCHANGER LEAKING OIL- INTO FUEL. REPLACED NR 1 FOX & BYPASS VALVE ASSY. OP CHECKED GOOD ON HIGH POWER RUN, NO LEAKS NO FAULTS.
- Difficulty date
- December 17, 2008
- Submitted
- December 19, 2008
- Operation
- Air carrier
- Aircraft
- N589UA
- Make and model
- Boeing 757222
- Aircraft serial
- 28707
- Aircraft time
- 44,287 hours, 12,272 cycles
- Engine
- Pwa PW2037
- Engine time
- 61,077 hours, 21,086 cycles
- System (JASC)
- 7921 · Engine Oil Cooler
- Part
- Bypass Valve
- Part number
- 1043V0300
- Condition
- Leaking
- Location
- Nr 1 Engine Oil
- Stage of operation
- CR
- How discovered
- O
- Nature of condition
- K
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.