# SDR ASAA2015080612789

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 6, 2015
- Submitted: August 10, 2015
- Operation: Air carrier
- Aircraft: [N563AS](https://openairdocs.org/aircraft/N563AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35180
- Aircraft time: 33,752 hours, 10,257 cycles
- System (JASC): [7720 · Engine Temperature Indicating System](https://openairdocs.org/jasc/7720)
- Part: Fault Code
- Condition: Activated
- 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/ASAA2015080612789

## Discrepancy

UPON ACCOMPLISHING TASK CARD 78273000, FMC CDU FOR ENGINE FAULTS ENGINE NR 1 HAS FAULT 77-20871, TOP LT EGT SIGNAL OUT OF RANGE.  TERM OF FAULT ECONOMIC.  FLT LEGS 1, 2, 3, 8, 9.  ACFT GROUNDED. ON DEFERRAL.

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