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ASN Wikibase Occurrence # 201891
Last updated: 3 November 2019
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Date:10-JAN-1999
Time:15:20
Type:Silhouette image of generic PA18 model; specific model in this crash may look slightly different
Piper PA-18A-150
Owner/operator:Sun West Aviation, Inc.
Registration: N8980D
C/n / msn: 186424
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Tucson, AZ -   United States of America
Phase: Unknown
Nature:Training
Departure airport:TUS
Destination airport:
Investigating agency: NTSB
Narrative:
The private pilot was receiving his first flight in a conventional geared aircraft. The instructor had informed him before takeoff that when they were coming in to land that he needed to stay off the heel brakes. On the landing rollout, the aircraft made a slight turn to the left and the student applied right rudder to correct the divergence. The airplane then made an abrupt turn to the right. Both student and instructor applied full left rudder to counteract the right turn but could not regain directional control before the airplane ground looped. The brake system was inspected with no mechanical malfunctions noted.
Probable Cause: The student pilot's inadvertent activation of the right heel brake on the conventional geared aircraft, which resulted in a loss of directional control and an inadvertent ground loop. A contributing factor was inadequate supervision.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001204X00077&key=1


Revision history:

Date/timeContributorUpdates
26-Nov-2017 09:39 ASN Update Bot Added

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