# SDR UPS05545817

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 19, 2005
- Submitted: November 21, 2005
- Operation: Air carrier
- Aircraft: [N475UP](https://openairdocs.org/aircraft/N475UP), registered now
- Make and model: Boeing 757-24APF
- Registry model: [Boeing 757-24APF](https://openairdocs.org/model/boeing-757-24apf) (OpenAirDocs)
- Aircraft serial: 28845
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Computer
- Condition: Faulty
- Location: Lt Eicas
- Stage of operation: CL
- How discovered: O
- Nature of condition: N
- Precautionary procedure: B, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UPS05545817

## Discrepancy

MULTIPLE WARNINGS, CAUTION AND ADVISORY EICAS ANNUNCIATIONS ON TAKEOFF ALONG WITH AURAL WARNINGS.  RETURNED FOR EMERGENCY LANDING.  ALL ANNUNCIATIONS EXCEPT AURALS DISAPPEARED WHEN EICAS COMPUTER SWITCH MOVED FROM AUTO TO RIGHT.  REPLACED FAULTY LEFT EICAS COMPUTER PER MM 31-41-02-4.

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