According to avherald.com, redwood 56 had received a clearance to cross 22R at J, where the runway incursion occurred. It's possible that 526 heard fifty six as five two six, especially if it was said quickly. Can anyone locate that clearance for redwood 56?
Attached is the clearance for Virgin, no mention of CA near this audio and it is a pretty clear "FIVE-SIX"
If you have an emergency maybe a engine out engine trouble ect and the successfully land the airplane could you use the ballistics parachute the moment you touch down on ground to slow down your airspeed?
What about maintenance on these ballistics parachutes I would imagine they need to packed by a parachute rigger? And what are the details if so?
If you are on a controllers frequency and all of a sudden you can’t get through because there is a stuck microphone on the frequency what would happen if you used another frequency temporary such as the ground controllers frequency for tower operations or even the clearance deliver frequency. how come the FAA never assigned a backup frequency in such cases or even in an emergency that would be published? Especially in class B airspaces! A Stuck microphone has got to be annoying.