# SDR CALA2022030700606

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2022
- Submitted: March 7, 2022
- Operation: Air carrier
- Aircraft: [N66831](https://openairdocs.org/aircraft/N66831), registered now
- Make and model: Boeing 737-900ER
- Registry model: [Boeing 737-900ER](https://openairdocs.org/model/boeing-737-900er) (OpenAirDocs)
- Aircraft serial: 44562
- Aircraft time: 24,884 hours, 8,836 cycles
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Fmc
- Part number: 1762000101
- Condition: Faulty
- Location: Rh And Lh
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CALA2022030700606

## Discrepancy

*EMERGENCY DECLARED* BOTH FMC DIED AFTER LAND DURRING TAXI IN RIGHT FMC SHOWS INOP. RIGHT FMC PLACED ON MEL.TOMC APPROVES THE USE OF MEL 3436E FOR RIGHT FMC INOP RH FMC REPLACED. REF LOG PAGE 8121047 . OP CHECKS OK. MEL CLEARED.

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