# SDR UIEA200800340

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 2008
- Submitted: November 14, 2008
- Operation: Air carrier
- Aircraft: N524MC
- Make and model: Boeing 747-2D7B
- Registry model: [Boeing 747-2D7B](https://openairdocs.org/model/boeing-747-2d7b) (OpenAirDocs)
- Aircraft serial: 21784
- Aircraft time: 98,573 hours, 20,464 cycles
- Engine: Ge CF650E2
- Engine time: 75,867 hours, 15,954 cycles
- System (JASC): [7997 · Engine Oil System Wiring](https://openairdocs.org/jasc/7997)
- Part: Connector
- Condition: Defective
- Location: Temp Sensor
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA200800340

## Discrepancy

AIR TURN BACK. NR 1 ENGINE OIL TEMP OFF SCALE HIGH FOR AT LEAST 10 MINUETS . ENGINE SHUT DOWN.  WIRING CHECKS ACCOMPLISHED AND FOUND NR 1 OIL TEMP SENSOR CONNECTOR DEFECTIVE . CONNECTOR REPLACED AND ALL OPERATIONS NORMAL. ENGINE RUN UP NORMAL. NR 1 ENGINE OIL TEMP SENSOR REPLACED AS PRECAUTION AND ENGINE RUNUP. LEAK CHECKED NORMAL.

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