Originally Posted by
Alan Shore
Assuming that we're talking about the FDP limit, the Captain can agree to go as much as two hours beyond that (to 14 in this case), so long as two conditions have been met:
1) You have not extended more than :30 beyond an FDP since receiving your last rest of 30 hours or more, and
2) The extension would cause you to exceed a cumulative FDP limit such as 60 in 168.
The release should show a Latest Allowable Takeoff Time (LATT) that would comply with the FDP limit, as well as one that complies with the longest legal extension for the crew. It is then up to the Captain to determine whether to agree to an extension and, if so, for how long.
What if the FO unilaterally decides not to accept the extension? Does she/he have to lie and say "fatigue" or "sick" (and then be subjected to the side effects of making either of those calls) or do they have the ability to merely say they are not accepting the extension like the CA has the right, button up their jacket, walk away and go to the hotel with impunity?