A319 captain reported an erroneous hot brake indication and elected to continue the takeoff.

Narrative:

Approaching number one position short of runway 17L at denver; my first officer noticed the no. 3 brake temperature much higher than the other three brakes temperatures; which were well in the 'green.'I considered leaving the departure position; and allowing the brakes to cool from the outside airflow.I considered the airflow over the brakes if the landing gear retraction was delayed on departure.I finally considered the brake temp of the no. 3 brake to be erroneous; or at least untrustworthy; in comparison to the other brake temperatures.I consulted with my first officer; and we concluded that the best course of action was to continue the departure; and use the departure airflow at altitude to ensure rapid cooling of the no. 3 brake. Our reasoning was the other brake temperatures were relatively cool for a takeoff; and the offending brake temperature was therefore likely erroneous as it approached max temperature for takeoff. The hot brake ECAM appeared just as we were entering departure position; and the no. 3 brake temperature was approximately 310 degrees. We continued the takeoff; left the gear down until 10;000 ft. And upon the no. 3 displaying 250 degrees; raised the gear and completed the flight uneventfully. If all four brakes had shown high temperature; or if the one hot brake displayed and extreme temperature; we would not have continued the takeoff.

Original NASA ASRS Text

Title: A319 Captain reported an erroneous hot brake indication and elected to continue the takeoff.

Narrative: Approaching number one position short of Runway 17L at Denver; my First Officer noticed the No. 3 Brake temperature much higher than the other three brakes temperatures; which were well in the 'GREEN.'I considered leaving the departure position; and allowing the brakes to cool from the outside airflow.I considered the airflow over the brakes if the landing gear retraction was delayed on departure.I finally considered the brake temp of the No. 3 brake to be erroneous; or at least untrustworthy; in comparison to the other brake temperatures.I consulted with my First Officer; and we concluded that the best course of action was to continue the departure; and use the departure airflow at altitude to ensure rapid cooling of the No. 3 brake. Our reasoning was the other brake temperatures were relatively cool for a takeoff; and the offending brake temperature was therefore likely erroneous as it approached max temperature for takeoff. The HOT BRAKE ECAM appeared just as we were entering departure position; and the No. 3 brake temperature was approximately 310 degrees. We continued the takeoff; left the gear down until 10;000 ft. and upon the No. 3 displaying 250 degrees; raised the gear and completed the flight uneventfully. If all four brakes had shown high temperature; or if the one hot brake displayed and extreme temperature; we would not have continued the takeoff.

Data retrieved from NASA's ASRS site 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	1687985
Time
Date	201909
Local Time Of Day	1201-1800
Place
Locale Reference	DEN.Airport
State Reference	CO
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	A319
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Component
Aircraft Component	System Monitor: Indicating and Warning
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 164 Flight Crew Total 672 Flight Crew Type 672
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy