# SDR ASAA0853425

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 28, 2008
- Submitted: September 4, 2008
- Operation: Air carrier
- Aircraft: [N583AS](https://openairdocs.org/aircraft/N583AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35681
- Aircraft time: 4,454 hours, 1,367 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Part number: 1762000101
- Part serial: 003128
- Condition: Malfunctioned
- Part time: 4,454 hours, 1,367 cycles
- Stage of operation: CL
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA0853425

## Discrepancy

DURING CLIMB SPEED BUG DROPPED TO CLEAN SPEED WITH V NAV ENGAGED FMC READS GOOD FOR CLIMB SPEED.  AT CRUISE V NAV AND BUG APPEAR TO BE WORKING OKAY.  PERFORMED FMC BITE TEST PER MM 34-61-00.  PERFORMED DFGS BITE TEST PER MM 22-11-00.  NO FAULTS NOTED.  NO HISTORY NOTED.  GROUND VERIFICATION SUCCESFUL.

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