# SDR UHLA2008110700005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 21, 2008
- Submitted: November 25, 2008
- Operation: Air carrier
- Aircraft: N649RW
- Make and model: Emb ERJ 170-100 SE
- Registry model: [EMB ERJ 170-100 SE](https://openairdocs.org/model/embraer-erj-170-100-se) (OpenAirDocs)
- Aircraft serial: 17000070
- Aircraft time: 10,092 hours, 6,350 cycles
- System (JASC): [3140 · Central Computers](https://openairdocs.org/jasc/3140)
- Part: Power Supply
- Part number: 70244401930
- Part serial: 04082336
- Condition: Defective
- Location: Mau
- Part time: 10,092 hours, 6,350 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UHLA2008110700005

## Discrepancy

FLIGHT 7610 ORD TO MSP - IN CRUISE CREW RECEIVED MAU3 FAIL.  THE DECISION WAS MADE TO RETURN TO FIELD; AN EMERGENCY WAS DECLARED AND THE AIRCRAFT LANDED WITHOUT INCIDENT.  MAINTENANCE REMOVED AND REPLACED THE MAU 3A POWER SUPPLY.

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