# SDR ASAA2017072821497

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 28, 2017
- Submitted: August 1, 2017
- Operation: Air carrier
- Aircraft: [N593AS](https://openairdocs.org/aircraft/N593AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35107
- Aircraft time: 35,560 hours, 10,877 cycles
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Warning Message
- Condition: False Activation
- Location: Nr 1 Vsv
- Stage of operation: IN
- How discovered: 9
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2017072821497

## Discrepancy

NR 1 ENGINE, VBV POSITION SIGNALS DISAGREE.  ACFT GROUNDED.  TROUBLESHOT IAW FIM 75-32 TASK 803. NO DEFECTS NOTED. COULD NOT GET MESSAGE TO APPEAR DURING NR 1 EEC BITE TEST OR ACTUATORS TEST. AIRCRAFT RELEASED FROM PLT.

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