NTSB Identification: ANC93LA091.
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Accident occurred Tuesday, June 15, 1993 in ANCHORAGE, AK
Probable Cause Approval Date: 08/31/1994
Aircraft: AERONCA AR11, registration: N4000E
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE FLIGHT INSTRUCTOR WAS GIVING FLIGHT INSTRUCTION TO THE PRIVATE PILOT ON TAKEOFF AND FULL STALL LANDING TECHNIQUES IN CONVENTIONAL WHEEL AIRCRAFT. THE AIRPLANE TOUCHED DOWN TO THE LEFT OF THE IMAGINARY RUNWAY CENTERLINE. WHILE THE TAILWHEEL WAS STILL IN THE AIR, THE PRIVATE PILOT AND FLIGHT INSTRUCTOR BOTH APPLIED RIGHT RUDDER TO BRING THE AIRPLANE BACK TO THE CENTERLINE. THE AIRPLANE VEERED TO THE RIGHT CROSSING THE CENTERLINE. THE PRIVATE PILOT DEPRESSED HIS LEFT WHEEL BRAKE AND RUDDER PEDAL SIMULTANEOUSLY, BUT THE AIRPLANE DID NOT RESPOND. THE FLIGHT INSTRUCTOR SAID THAT HE ALSO DEPRESSED HIS LEFT RUDDER PEDAL. THE AIRPLANE WAS NOT EQUIPPED WITH WHEEL BRAKE CONTROLS AT THE FLIGHT INSTRUCTOR'S POSITION. IT PROCEEDED OFF THE RIGHT SIDE OF THE RUNWAY (OFF ABRUPT RUNWAY EDGE), ENCOUNTERED SOFT MUD, AND FLIPPED OVER. AN ON-SCENE EXAMINATION OF THE LANDING GEAR, WHEEL, AND BRAKE ASSEMBLY FOUND THEM TO BE IN PROPER WORKING ORDER.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

FAILURE OF THE STUDENT PILOT TO MAINTAIN DIRECTIONAL CONTROL, WHICH RESULTED IN A GROUND SWERVE, AND INADEQUATE SUPERVISION BY THE FLIGHT INSTRUCTOR. A FACTOR RELATED TO THE ACCIDENT WAS: THE SOFT/WET (MUDDY) TERRAIN AT THE EDGE OF THE RUNWAY.

Full narrative available

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