# SDR UIEA200800026A

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 11, 2009
- Submitted: April 13, 2009
- Operation: Air carrier
- Aircraft: [N492MC](https://openairdocs.org/aircraft/N492MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29253
- Aircraft time: 44,967 hours, 8,464 cycles
- System (JASC): [3140 · Central Computers](https://openairdocs.org/jasc/3140)
- Part: Eiu
- Condition: Malfunctioned
- Location: Left
- Stage of operation: CR
- 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/UIEA200800026A

## Discrepancy

CREW REPORTED LEFT EIU INOP WITH SEVERAL EICAS MESSAGES AND MULTIPLE STATUS MESSAGES.  SWAPPED LEFT AND CENTER EIU PLACED ON DEFERRAL PER MEL 31-61-6.

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