Narrative:

While flying at cruise we noticed that the oil temperature had risen into the amber range and was continuing to rise. As flying pilot I took the radios and the aircraft while the captain took out the QRH. The procedure directed us to bring back the power on the affected engine to see if it would reduce the oil temperature: it did not. The procedure directed us to shut down the affected engine. We declared an emergency to ATC; started diverting to a nearby airport; contacted the company; and briefed the flight attendants. We landed safely. We had the emergency vehicles that were standing by verify that everything looked ok on the outside of the aircraft; they said it did. We taxied into the gate and deplaned.

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Original NASA ASRS Text

Title: An ERJ-170 engine oil temperature was detected in the amber range and after completing the QRH the temperature remained high so the engine was shutdown; an emergency declared and the flight diverted to a nearby airport.

Narrative: While flying at cruise we noticed that the oil temperature had risen into the amber range and was continuing to rise. As flying pilot I took the radios and the aircraft while the Captain took out the QRH. The procedure directed us to bring back the power on the affected engine to see if it would reduce the oil temperature: it did not. The procedure directed us to shut down the affected engine. We declared an emergency to ATC; started diverting to a nearby airport; contacted the company; and briefed the flight attendants. We landed safely. We had the emergency vehicles that were standing by verify that everything looked OK on the outside of the aircraft; they said it did. We taxied into the gate and deplaned.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.