# SDR ARWA20080503

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 17, 2008
- Submitted: May 27, 2008
- Operation: Air carrier
- Aircraft: N140WE
- Make and model: Doug DC-10-40F
- Registry model: [Doug DC-10-40F](https://openairdocs.org/model/douglas-dc-10-40f) (OpenAirDocs)
- Aircraft serial: 46920
- Aircraft time: 63,771 hours, 46,316 cycles
- System (JASC): [7722 · Engine EGT/TIT Indicating System](https://openairdocs.org/jasc/7722)
- Part: Thermocouple
- Part number: 744471B
- Part serial: 23366
- Condition: Shorted
- Location: Nr 2 Engine
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ARWA20080503

## Discrepancy

IN FLIGHT NR 2 ENGINE EGT INDICATOR FLUCTUATING 20 TO 30 DEGREES BOTH POINTER AND COUNTER, ALL OTHER PARAMETERS NORMAL.  TROUBLE SHOT IN ACCORDANCE WITH TAFY MANUAL 77-21-00, FOUND THERMO COUPLE SHORTED AT 6 O'CLOCK POSITION AND HARNESS ISOLATION HIGH, REMOVED AND REPLACED HARNESS IN ACCORDANCE WITH M/M 77-21-05.  INSTALLED PROBE IN ACCORDANCE WITH M/M 77-21-00.  SAFETY WIRED EGT PROBE IN ACCORDANCE WITH M/M 70-00-00.  PERFORMED OPERATIONAL CHECK ON ENGINE RUN-UP IN ACCORDANCE WITH M/M 71-00-00, FOUND NORMAL, NO FLUCTUATION NOTED AT THIS TIME.

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