If a take off is rejected and RTO brings the aircraft to a halt, does the brake remain set on the Boeing 757/767?
Yeah, the brakes remain set. This was answered in post 3 - with the handy FSTOP acronym. I've pasted the relevant text highlighted in green below. Also below are the arming, application and disarming criteria of the brakes and of the autobrake selector switch.
RTO Autobrake Arm
The autobrake system ARMs when in the RTO mode and latches the
selector when:
• The RTO mode is selected.
• There is no autobrake malfunctions.
• Both air/ground systems indicate ground mode.
RTO Autobrake Application
Autobrake application in the RTO mode applies full system pressure
to the antiskid valves when the following criteria are met:
• All thrust lever switches indicate retarded.
• Average wheel speed has exceeded 85 knots and currently > 80
knots.
• Pedal brake pressure < 500 psi on aircraft with carbon brakes (<
750 psi on aircraft with steel brakes).
Full pressure is applied until removed by any of the following
conditions:
• RTO selected OFF.
• Any thrust lever switch indicates advanced.
• Either brake pressure switch on the shuttle valves, indicates high
pressure. ( Pressing on the brake pedals.)
• Antiskid/autobrake fault detected.
• Speed brake handle stowed after being extended during or after
autobrake application.
The autobrake system remains latched in the RTO position until one
of the following occurs:
• Selector switch is placed to OFF.
• At least one air/ground signal indicates air mode.
• There is a loss of autobrake power.
NOTE:
A fault occurring when RTO is selected, will only
illuminate the fault light and display an EICAS message.
The selector will remain latched in the RTO position.
Also, where is the technical reference for the answer?
Boeing Aircraft Maint Engineers Training notes. (Yeah, they teach us all the nitty gritty stuff - anything else you want/need to know?) 