# SDR HALA2018041600169

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2018
- Submitted: April 16, 2018
- Operation: Air carrier
- Aircraft: [N592HA](https://openairdocs.org/aircraft/N592HA), registered now
- Make and model: Boeing 767-3CB
- Registry model: [Boeing 767-3CB](https://openairdocs.org/model/boeing-767-3cb) (OpenAirDocs)
- Aircraft serial: 33466
- Aircraft time: 55,640 hours, 10,347 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Computer
- Part number: 4052506955
- Part serial: 87080886
- Condition: Warning Message
- Location: Flt Management
- Part time: 7,560 hours, 1,535 cycles
- 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/HALA2018041600169

## Discrepancy

AIR TURNBACK DUE TO A LT FMC FAIL EICAS MESSAGE.   REPLACED THE LEFT FLIGHT MANAGEMENT COMPUTER IAW AMM 34-61-01, FMC DATA CROSSLOADED IAW AMM 34-61-00.  OPS CHECKED GOOD.  OK TO CONTINUE.

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