# SDR TWAA0103401

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 2001
- Submitted: February 22, 2001
- Operation: Air carrier
- Aircraft: N704X
- Make and model: Boeing 757-2Q8
- Registry model: [Boeing 757-2Q8](https://openairdocs.org/model/boeing-757-2q8) (OpenAirDocs)
- Aircraft serial: 28163
- Aircraft time: 16,106 hours, 4,915 cycles
- System (JASC): [3460 · Flight Management Computing Hardware System](https://openairdocs.org/jasc/3460)
- Part: Fmc
- Condition: Failed
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TWAA0103401

## Discrepancy

AIRCRAFT RETURNED FROM FLIGHT AT LAX TWICE WITH A DUAL FMC FAILURE.  THE FIRST TIME THE RT FMC COMPUTER WAS REPLACED, (P/N 4052506-941-945).  THE SECOND TIME THE AIRCRAFT WAS REMOVED FROM SERVICE.  CHECK-C 11-20-99 LAX.

---
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.