# SDR R61A201205310303

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 31, 2012
- Submitted: June 4, 2012
- Operation: Air carrier
- Aircraft: [N108HQ](https://openairdocs.org/aircraft/N108HQ), 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: 17000166
- Aircraft time: 13,567 hours, 10,792 cycles
- System (JASC): [2424 · AC Regulator](https://openairdocs.org/jasc/2424)
- Part: Gcu
- Part number: 1701321D
- Part serial: 0811
- Condition: Failed
- Location: Nr 1
- Part time: 13,068 hours, 10,164 cycles
- Stage of operation: CL
- 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/R61A201205310303

## Discrepancy

CREW REPORTED, RECEIVED A TRU2 FAIL MESSAGE IN FLIGHT.  TRUCKS WERE ROLLED AS A PRECAUTION.  LANDED WITHOUT INCIDENT.  MAINTENANCE REPLACED GCU1 AND GCU2 PER EMB AMM.

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