15 - 45 minutes
My MacBook Pro 13" Mid 2010 fan started to make noises and I was on a business trip.
I received the replacement and all the tools needed to make the repair overnight, now the fan is working perfectly. Thanks IFixIt!
Must know that the Fan Connector goes pressed over the mainboard and is not connected horizontal at it looks. You must use the spudger to disconnect it vertically.
Phillips #00 Screwdriver
TR6 Torx Security Screwdriver
MacBook Pro 13" Unibody and MacBook 13" Unibody Fan