# SDR R61A20100471

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 7, 2010
- Submitted: November 8, 2010
- Operation: Air carrier
- Aircraft: N812MD
- Make and model: Emb ERJ 170-100SU
- Registry model: [EMB ERJ 170-100SU](https://openairdocs.org/model/embraer-erj-170-100su) (OpenAirDocs)
- Aircraft serial: 17000030
- Aircraft time: 16,294 hours, 12,018 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Hydraulic System
- Condition: Malfunctioned
- Location: Nr 1
- Stage of operation: CL
- How discovered: O
- Nature of condition: M, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/R61A20100471

## Discrepancy

CREW REPORTED HYD SYS 1 OVERTEMP MSG ON EICAS DURING CLIMB, DECLARED AN EMERGENCY AND RETURNED TO FIELD.  MAINTENANCE T/S PER AMM AND REPORTED ACMP NR 1 WAS AT FAULT.  MTX SWAPPED ACMP NR 1 WITH ACMP 3B AND PLACED ON MEL.  A/C WAS THEN RETURNED TO SERVICE.

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