# SDR ASAA2014080508771

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 5, 2014
- Submitted: August 12, 2014
- Operation: Air carrier
- Aircraft: [N565AS](https://openairdocs.org/aircraft/N565AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35181
- Aircraft time: 29,375 hours, 8,970 cycles
- System (JASC): [7700 · Engine Indicating System](https://openairdocs.org/jasc/7700)
- Part: Warning Message
- Condition: Activated
- Location: Engine
- Stage of operation: IN
- How discovered: 9
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2014080508771

## Discrepancy

FOUND LONG TERM FAULT CODE 77-21171 ON ENGINE.  N1 SIGNAL OUT OF RANGE.  ACFT GROUNDED.  FAULT IS NOT ACTIVE.  NO ACTIVE FAULTS LOGGED IN FLIGHT LEG 0 OR IN FAULT HISTORY, LAST 10 FLIGHTS.  REF FIM TASK 77-11, TASK 801.

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