# SDR ASAA2016021815596

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2016
- Submitted: February 22, 2016
- Operation: Air carrier
- Aircraft: [N588AS](https://openairdocs.org/aircraft/N588AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35685
- Aircraft time: 31,725 hours, 9,651 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7720 · Engine Temperature Indicating System](https://openairdocs.org/jasc/7720)
- Part: Warning Message
- Condition: Out Of Tolerance
- Location: Nr 1 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/ASAA2016021815596

## Discrepancy

NR 1 ENGINE FMC CDU FAULT. "ECONOMIC FAULT" MSG NR 77-10841, EGT SIGNAL, T495S1 IS OUT OF RANGE.  ACFT GROUNDED.  ACCOMPLISHED EGT CLEANING. PREVALUES: S1-116.39, S2-71.6, S3-76.8, S4-135.7.  POST VALUES: S1-48.0, S2-24.3, S3-27.7, S4-60.3.  ACCOMPLISHED REPAIR CONFIRMATION, ELECTRONIC ENGINE CONTROL TEST PASSES.  THIS CLEARS PLT.

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