# SDR ABXA2021318019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2021
- Submitted: March 19, 2021
- Operation: Air carrier
- Aircraft: [N226CY](https://openairdocs.org/aircraft/N226CY), registered now
- Make and model: Boeing 767383
- Aircraft serial: 26554
- Aircraft time: 80,928 hours, 17,673 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Malfunctioned
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ABXA2021318019

## Discrepancy

LEFT AND RIGHT FMC DISPLAYED IRS GROUND SPEEDS NOT CHANGING. AIRCRAFT BACK TO BLOCK AND GROUNDED, RE-SET RIGHT/LEFT FMC CB'S. RE-ALIGNED IRU'S. OP'S CHECK FMC CONTROL PANEL I/A/W AMM 34-61-02. OP'S CHECK GOOD. DISPLAY NORMAL. AIRCRAFT RELEASED.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
