Engine Cool Down Time

[I9311I]

Might have missed this, but what is the engine cool down time before shut down, 2 or 3 minutes?

[sunake]

3 minutes after high power operations like max reverse. I'm not sure if there is a cool down if you use idle reverse

[ois650]

Prior to shutdown, operate the engine at or near IDLE for a minimum of two minutes, to dissipate heat and stabilize internal operating temperatures. Taxi time at 70% N2 or below may be credited in the two minute cool-down period.