# SDR ASAA2018020423439

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 4, 2018
- Submitted: February 8, 2018
- Operation: Air carrier
- Aircraft: [N413AS](https://openairdocs.org/aircraft/N413AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 35205
- Aircraft time: 19,589 hours, 6,397 cycles
- Engine: Cfmint CFM567B27E
- System (JASC): [7720 · Engine Temperature Indicating System](https://openairdocs.org/jasc/7720)
- Part: Probe
- Part number: TC29603
- Condition: Faulted
- Location: Nr 2 Engine
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018020423439

## Discrepancy

MESSAGE 77-10842, THE TOP RIGHT EGT SIGNAL T495S1 IS OUT OF RANGE ON THE NR 2 ENGINE.  FLIGHT LEGS 1-10.  ACFT GROUNDED.  REMOVED & REPLACED THE T49.5 S1 SENSOR. OPS CHECKED GOOD IAW AMM 77-21-01/401. GROUND VERIFICATION SUCCESSFUL.

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