What was found
CREW PERFORMED DIVERSION DUE TO LEFT ENGINE OIL TEMP HIGH. REPLACED THE AIR/OIL HEAT EXCHANGER, FUEL/OIL COOLER, BYPASS VALVE AND OIL TEMP THERMOCOUPLE. OIL TEMPS NORMAL DURING HIGH POWER RUNS AND AIRCRAFT RETURNED TO SERVICE.
- Difficulty date
- June 23, 2019
- Submitted
- June 24, 2019
- Operation
- Air carrier
- Aircraft
- N658DL
- Make and model
- Boeing 757232
- Aircraft serial
- 24420
- Aircraft time
- 88,165 hours, 40,181 cycles
- Engine
- Pwa PW2037
- System (JASC)
- 7933 · Engine Oil Temperature
- Part
- Bypass Valve
- Condition
- Malfunctioned
- Location
- Lt Engine
- Stage of operation
- CL
- 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.