Originally Posted by
FlyingStone
Get the airplane stopped, prevent it from moving, focus on identifying and solving the problem and only then consider releasing the parking brake. Last thing I want following an RTO, is to keep looking outside if the airplane is moving or not.
Again, Boeing does not stop you from doing so if you think that's the safer option. The wording is different, the wording is "consider not setting unless evacuation".
Not saying right or wrong here, but I think many are "sim biased" in my opinion.
Reality is that 100% of all rejects I have done, I have never set the parking brake because they were either low speed or there was not a problem that might require an evacuation. So it's pretty realistic to have the idea not to set the parking brake but vacate the runway and then if necessary stop on the taxiway to take care of the problem. Which is what I've done on 100% of the rejects in my life.
If there's a possible need to evacuate, the need will be clear at the moment you initiate the reject and Boeing does not stop you from setting the parking brake. If you make the parking brake part of the RTO procedure, it becomes mandatory for every reject, disregarding the cause of the RTO. So I prefer this Boeing extra "freedom" as opposed to the mandatory "Airbus".
With sim biased I mean sims are always worst case. And yes it's sound to set the parking brake and in many times you will already have the evacuation checklist ready on your lap (at least we have). But even then Boeing says not to rush so there is time to set the parking brake and move on to the evacuation checklist. Which is also the reason why the evacuation checklist was moved from pure memory to read and do. Don't rush but be mindfull of every step you do.