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ASN Wikibase Occurrence # 189277
Last updated: 12 January 2020
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Type:Silhouette image of generic HAWK model; specific model in this crash may look slightly different
BAe Hawk Mk 67
Owner/operator:Air Usa Inc
Registration: N509XX
C/n / msn: 67-509
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Location:Tinker Air Force Base. OK -   United States of America
Phase: Take off
Departure airport:Oklahoma City, OK (KTIK)
Destination airport:Cherry Point, NC
Investigating agency: NTSB
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 unitís 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.

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



Revision history:

14-Aug-2016 19:28 Aerossurance Added
30-Nov-2017 19:28 ASN Update Bot Updated [Time, Cn, Operator, Other fatalities, Nature, Departure airport, Destination airport, Source, Damage, Narrative]

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