# SDR 2000ZZZX77

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 16, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N494SP](https://openairdocs.org/aircraft/N494SP), registered now
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S8035
- System (JASC): [7722 · Engine EGT/TIT Indicating System](https://openairdocs.org/jasc/7722)
- Part: Thermocouple
- Part number: TE4099802
- Condition: Inoperative
- Location: Engine
- Part time: 93 hours
- Stage of operation: NR
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2000ZZZX77

## Discrepancy

PILOT DISCREPANCY, EGT INOPERATIVE.  DURING PHASE 3 INSPECTION, FOUND THERMOCOUPLE LEADS SEPARATED FROM THERMOCOUPLE.  REPLACED EGT THERMOCOUPLE, OPERATIONAL CHECK SATISFACTORY.  SUBMITTER STATED ON A FLEET OF 5 NEW C-172S AIRCRAFT, THIS IS THE 10TH FAILURE IN THE PAST YEAR.

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