# SDR ASAA2015050411626

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 4, 2015
- Submitted: May 8, 2015
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 31,238 hours, 9,367 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [7720 · Engine Temperature Indicating System](https://openairdocs.org/jasc/7720)
- Part: Engine
- Condition: Faulted
- Location: Nr 1
- 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/ASAA2015050411626

## Discrepancy

WHILE PERFORMING TC NR 78273000, FMC CDU INTERROGATION,  FOUND MESSAGE: ENGINE NR 1 BOTTOM RT EGT SIGNAL OUT OF RANGE, CODE 77-10851 ECONOMIC FAULT.  MUST BE CORRECTED WITH IN 500 FLT HOURS.  ACFT GROUNDED. ON DEFERRAL.

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