# SDR R61A20090064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2009
- Submitted: October 5, 2009
- Operation: Air carrier
- Aircraft: [N122HQ](https://openairdocs.org/aircraft/N122HQ), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000196
- Aircraft time: 5,001 hours, 4,043 cycles
- System (JASC): [3140 · Central Computers](https://openairdocs.org/jasc/3140)
- Part: Power Supply
- Part number: 70244401903
- Part serial: 07078396
- Condition: Inoperative
- Location: Mau
- Part time: 4,994 hours, 4,039 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/R61A20090064

## Discrepancy

CREW REPORTED AN AVNX MAU3 FAIL IN FLIGHT, DECLARED AN EMERGENCY AND LANDED AT PNS WITHOUT INCIDENT.  MAINTENANCE WAS DISPATCHED TO THE AIRCRAFT TO TROUBLESHOOT.  MAINTENANCE REMOVED AND REPLACED THE POWER SUPPLY 1 IN MAU 3, PER EMB AMM AND PERFORMED OPS CHECKS.  A/C WAS THEN RETURNED TO SERVICE.

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