BAE SYSTEMS HAWK MK 67 near Oklahoma City, OK — 2014-10-18

Probable cause

The loss of directional control during the takeoff roll for reasons that could not be determined during postaccident examinations and testing.

NTSB narrative

The pilot was on a cross-country flight in a single-engine jet trainer and had stopped en route for refueling. The pilot reported that, during the takeoff roll, as the airspeed reached about 90 knots, the airplane made a hard left turn. He applied the right rudder and brake to stop the left turn; however, the airplane continued left off the runway surface and then came to rest upright. Examinations of the tires, wheel brakes, and rudder did not reveal any abnormalities. The nosewheel steering control unit was bench tested. During the test, the unit's power supply module failed; however, it was determined that a supply failure would cause a castering nosewheel rather than an uncommanded steering input. The reason for the uncommanded turn could not be determined.

Analysis

Primary failure mode

Mechanical failure

First missed decision gate

Pilot could have aborted takeoff upon noticing abnormal aircraft behavior.

NTSB coding

• Runway excursion · Takeoff

Evidence available

• Photos
• 2 docket documents

Docket documents2

• Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1form
• Photophotos

Related mishaps

• HAWKER BEECHCRAFT CORP G36

  2026-06-04 · Danbury, CT

• CIRRUS DESIGN CORP SR22T

  2026-03-31 · Mount Pleasant, SC

• PIPER PA24-180

  2026-03-11 · Leonardtown, MD

• MORRIS BRADLEY D ZENITH STOL CH-701

  2026-03-01 · Hendersonville, NC

• CESSNA 170

  2026-01-29 · Summerdale, AL

• VARGA AIRCRAFT CORP. 2150A

  2025-12-28 · Frostproof, FL