# SDR 2002UALA01283

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2002
- Submitted: October 1, 2002
- Operation: Air carrier
- Aircraft: [N773UA](https://openairdocs.org/aircraft/N773UA), registered now
- Make and model: Boeing 777222
- Aircraft serial: 26929
- Aircraft time: 28,524 hours, 6,524 cycles
- Engine: Pwa PW4077
- Engine time: 20,626 hours, 4,253 cycles
- System (JASC): [7312 · Fuel Heater](https://openairdocs.org/jasc/7312)
- Part: Fuel Heater
- Part number: 51A346
- Condition: Failed
- Location: Rt Engine
- Stage of operation: DE
- How discovered: O
- Nature of condition: M, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2002UALA01283

## Discrepancy

ENG OIL TEMP R EICAS AND AMBER TEMP DISPLAY, TEMP DISPLAY WENT RED ON GROUND DURING TAXI.  REPLACED THE SERVO FUEL HEATER. SHOP TEARDOWN OF THE REMOVED HEATER REVEALED FAILED TUBES IN THE FUEL/OIL HEAT EXCHANGER.

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