Originally Posted by
tom11011
The decision by your company to extend you has to be made prior to the end of your FDP. The notification obviously follows later.
More accurately. The decision to NOT fly you needs to be made before the end of your duty period.
For example. Your FDP ends when you set the brake, but your Duty period ends 15 min after the brake is set. The company can still call you within that 15 min and assign you additional flying as long as you do not exceed the FAR 117 limits, and your FDP clock keeps going.