The Cummulative Thing is what get's me
It is not the single day of 16 hours and a bunch of legs that gets to me, it's the days in a row of this that really takes it's toll. Day 1 no problem, but then I need a real rest period min 12 hours to get up and do it again. Some companies have guys doing 4 days in a row min rest with these long days, that in my opinion is where mistakes become inevitable. If the Feds are unwilling to change a daily requirement they should at least address the amount rest after a long day. How about, anything over 14 hours duty requires at least 12 hours off duty. Companies could easily deal with that and the safety factor would go way up.
Untill the industry gets some relief here, the answer lies with us to slow down and take our time to do things right when we get tired. I operate in a different mode when I get tired, I double check things more and try to keep the stress at a lower level. I try to keep external pressures to a min. If the fueler is late, the fueler is late. 2 hour ATC delay, no big deal just time for the the crew to pull out pictures and talk about how our kids are doing. This keeps things in perspective for me, what is important is to get the job done safely and get back home to what matters most. Day one I might be the super invoved problem solver, get me tired and I just fly from A to B as safely as possible. I only have so much energy to give per day especially after insuficient rest.