Medium Transport
Flight Crew Air Transport Pilot (ATP)
Situational Awareness
ATC Issue All Types; Conflict Ground Conflict; Less Severe
Air Traffic Control Issued New Clearance; Flight Crew Rejected Takeoff
Procedure; Human Factors
As we taxied out I heard a company aircraft get an intersection taxi clearance. We were cleared for takeoff full length; I start adding takeoff power; then I heard Tower clear a company aircraft to takeoff on the same runway at an intersection (didn't catch the taxiway). So I go to flight idle and stop (power was not in rating detent yet). It turns out that Tower cleared a company to takeoff from TWY D; rather than downfield like the other company had a taxi clearance to do so. What caused my concern was that they cleared the second aircraft to takeoff when we had barely started rolling. Usually when they launch closely the first aircraft is already halfway down the field; not still in the TDZ. I said my flight number to Tower; Tower cancelled the second aircraft's clearance; told me I was still cleared for takeoff and that the intersection was behind us.The immediate clearance of a second aircraft to takeoff from an intersection while I had barely added power; while the taxiing intersection downfield aircraft was in the back of my mind.
Air carrier Captain reported rejecting his takeoff early in the roll when he heard another aircraft cleared for takeoff on the same runway.