# SDR IPXA2019100747652

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2019
- Submitted: October 9, 2019
- Operation: Air carrier
- Aircraft: [N457UP](https://openairdocs.org/aircraft/N457UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 25478
- Aircraft time: 30,992 hours, 18,548 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Failed
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: P
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2019100747652

## Discrepancy

ENROUTE, CREW REPORTED DUAL FMC FAILURE WITH NO ROUTE DISPLAYED ON EITHER NAV.  CREW DECLARED EMERGENCY, DIVERTED.  THE FLIGHT LANDED WITHOUT INCIDENT.  CHECKED BOTH FMC WIRING IAW WDM.  FOUND DIRTY CONNECTORS, CLEANED AND PERFORMED FMC BITE PROCEDURE PER FIM.  OPS CHECKED GOOD.

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