# SDR CNMA202312210002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 19, 2023
- Submitted: December 21, 2023
- Operation: Air carrier
- Aircraft: [N486AX](https://openairdocs.org/aircraft/N486AX), registered now
- Make and model: Boeing 767-36N
- Registry model: [Boeing 767-36N](https://openairdocs.org/model/boeing-767-36n) (OpenAirDocs)
- Aircraft serial: 30843
- Aircraft time: 74,509 hours, 15,073 cycles
- System (JASC): [3461 · Flight Management Computing Software System](https://openairdocs.org/jasc/3461)
- Part: Cdu
- Part number: 4058650950
- Part serial: 91071328
- Condition: Intermittent
- Location: Unknown
- Part time: 2,950 hours, 582 cycles
- Stage of operation: CR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CNMA202312210002

## Discrepancy

L CDU FAILURE, L FMC FAILURE: DURING FLIGHT CREW REPORT THE L FMC FAILED. DISCUSSIONS WITH MOC AND DO. ALL PARTIES AGREED TO CONTINUE. CREW CALLED BACK 1 HOUR LATER AND STATED THE L CDU FAILED AND WENT BLANK. FIGHT DIVERTING TO ANC DUE TO ETOPS AND FUEL RESTRICTIONS.

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