Incident Overview
A pilot operating an aircraft on Runway 19R initially received an air traffic control clearance to taxi into position and hold. While holding, the pilot heard what he interpreted as a clearance to take off. He acknowledged the perceived clearance and initiated a takeoff roll.
Aborted Takeoff and Directional Control
After the aircraft attained minimum flying airspeed, the pilot was instructed to abort the takeoff. In response, he reduced engine power and applied braking. The pilot later stated that the left brake grabbed more than the right brake. According to one of two student pilot statements submitted, the left brake was apparently hit harder than the right brake. The aircraft then veered to the left, departed the runway, and struck a precision approach path indicator (PAPI) light.
Pilot's Account
The pilot reported that during the braking, the asymmetric braking caused the aircraft to pull left. The aircraft subsequently left the runway surface and impacted a PAPI light fixture. No further details regarding aircraft condition or pilot experience were provided in the source.