# SDR AWKA20180111

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 7, 2018
- Submitted: January 12, 2018
- Operation: Air carrier
- Aircraft: [N549XJ](https://openairdocs.org/aircraft/N549XJ), registered now
- Make and model: Bombdr BD1001A10
- Aircraft serial: 20322
- Aircraft time: 7,989 hours, 3,502 cycles
- System (JASC): [2910 · Hydraulic System, Main](https://openairdocs.org/jasc/2910)
- Part: Warning Message
- Condition: Illuminated
- Location: Hyd System
- 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/AWKA20180111

## Discrepancy

DURING CRUISE, FLIGHT CREW RECEIVED A HYD TEMP HIGH AMBER CAS MESSAGE.  THE TEMPERATURE CONTINUED TO CLIMB.  ATC DECLARED AN EMERGENCY.  AN UNEVENTFUL LANDING WAS ACCOMPLISHED.  MAINTENANCE WAS UNABLE TO DUPLICATE THE DISCREPANCY. AS A PRECAUTION AND BASED ON OPERATOR EXPERIENCE, BOTH THE RT HYDRAULIC RESERVOIR AND THE RT HYDRAULIC TEMP TRANSDUCER WERE REPLACED. THERE HAVE BEEN NO REPEAT ISSUES ON SUBSEQUENT FLIGHTS TO DATE.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.