A crj-900 first officer reported brake overheat temperature warning received in cruise flight. An em...

Narrative:

While in cruise flight the brake ovht temperature warning message came on. I canceled the message and pulled out the emergency checklist; upon completing it sent me to the QRH; where I continued through the rest of the checklist. While I was completing the checklist [captain] was descending and slowing down so that we could lower the gear. After completing the brake overheat reset procedure the message did not go away. At this point [captain] gave the controls over to me so that he could call dispatch [on commercial radio]; it did not work and never was able to [reach] them via commercial radio. He then proceeded to talk to the flight attendants and let them know what was going on and what are plans were. With the warning message never going away we declared an emergency [and] diverted to the closest suitable airport. Upon landing we taxied off of the runway where arff looked over the gear and told us everything looked normal and we were good to continue to the gate.

Original NASA ASRS Text

Title: A CRJ-900 First Officer reported Brake Overheat Temperature warning received in cruise flight. An emergency was declared and the flight diverted to the nearest suitable airport.

Narrative: While in cruise flight the BRAKE OVHT TEMP warning message came on. I canceled the message and pulled out the emergency checklist; upon completing it sent me to the QRH; where I continued through the rest of the checklist. While I was completing the checklist [Captain] was descending and slowing down so that we could lower the gear. After completing the brake overheat reset procedure the message did not go away. At this point [Captain] gave the controls over to me so that he could call Dispatch [on commercial radio]; it did not work and never was able to [reach] them via commercial radio. He then proceeded to talk to the Flight Attendants and let them know what was going on and what are plans were. With the warning message never going away we declared an emergency [and] diverted to the closest suitable airport. Upon landing we taxied off of the runway where ARFF looked over the gear and told us everything looked normal and we were good to continue to the gate.

Data retrieved from NASA's ASRS site as of April 2012 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.

Attributes
ACN	938208
Time
Date	201103
Aircraft 1
Make Model Name	Regional Jet 900 (CRJ900)
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Component
Aircraft Component	Brake System
Person 1
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Commercial
Events
Anomaly	Aircraft Equipment Problem Less Severe

A crj-900 first officer reported brake overheat temperature warning received in cruise flight. An emergency was declared and the flight diverted to the nearest suitable airport.