Crash of a Cessna 510 Citation Mustang in El Monte

Date & Time: Aug 31, 2019 at 1105 LT
Operator:
Registration:
N551WH
Flight Phase:
Flight Type:
Survivors:
Yes
Schedule:
El Monte - Thermal
MSN:
510-0055
YOM:
2008
Crew on board:
1
Crew fatalities:
Pax on board:
1
Pax fatalities:
Other fatalities:
Total fatalities:
0
Captain / Total flying hours:
2217
Captain / Total hours on type:
477.00
Circumstances:
The pilot reported that, while holding short of the runway, he set the parking brake while waiting for his takeoff clearance. Upon receiving takeoff clearance, he reached down to the parking brake handle and, "quickly pushed the parking brakes back in"; however, he did not visually verify that he disengaged the parking brake. During the takeoff roll, he noticed that the airplane was not accelerating beyond about 70 knots and decided to abort the takeoff. The airplane subsequently veered to the left, exited the departure end of the runway, and impacted an airport perimeter fence. The pilot reported that he must have not fully disengaged the parking brake before takeoff and that there were no mechanical issues with the airplane that would have precluded normal operation. Postaccident examination of the airplane revealed that the parking brake handle was partially extended, which likely resulted in the airplaneā€™s decreased acceleration during the takeoff roll.
Probable cause:
The pilot's failure to disengage the parking brake before takeoff, which resulted in decreased acceleration and a subsequent runway overrun following an aborted takeoff.
Final Report: