# SDR USAABB00078

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 8, 2000
- Submitted: August 14, 2000
- Operation: Air carrier
- Aircraft: [N647US](https://openairdocs.org/aircraft/N647US), registered now
- Make and model: Boeing 767201
- Aircraft serial: 23899
- System (JASC): [3120 · Independent Instruments](https://openairdocs.org/jasc/3120)
- Part: Clock
- Part number: 658060021
- Condition: Failed
- Location: Cockpit
- Part time: 51,601 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/USAABB00078

## Discrepancy

PHL - FLT 188 - EN ROUTE CLT/CDG, CREW EXPERIENCED A DUAL FMC FAILURE (EICAS MESSAGE ''L/R FMC FAIL''.  FLIGHT DIVERTED TO PHL, AND LANDED WITH NO FURTHER INCIDENT.  MAINTENANCE REPLACED BOTH FMC''S AND THE CAPTAIN''S CLOCK.  (X)

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