# SDR CALA2012070200421

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 30, 2012
- Submitted: July 2, 2012
- Operation: Air carrier
- Aircraft: [N77867](https://openairdocs.org/aircraft/N77867), registered now
- Make and model: Boeing 757-33N
- Registry model: [Boeing 757-33N](https://openairdocs.org/model/boeing-757-33n) (OpenAirDocs)
- Aircraft serial: 32592
- Aircraft time: 35,648 hours, 10,794 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Part number: 4052506995
- Part serial: 0009F457
- Condition: Failed
- Location: E/E Bay
- Part time: 35,647 hours, 10,794 cycles
- Stage of operation: CL
- 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/CALA2012070200421

## Discrepancy

SHORTLY AFTER TAKE OFF, BOTH FMC'S DUMPED ALL DATA, UNABLE TO RESTORE ANY FMC FUNCTIONS.  TROUBLESHOT IAW FIM 34-61-00-815-818.  R & R BOTH FMC'S IAW MM 34-61-01-424-005-002.  OPS CHECKED GOOD.

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