WPR17LA098

NTSB accident investigation · Robert E Bounds Bounds Bearcoupe · Hanksville, UT · May 5, 2017

Accident · Serious injuriesLimited investigationFinal report
Date
May 5, 2017, 09:15 local (15:15 UTC)
Place
Hanksville, UT
Injuries
2 serious
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N136BCRobert E Bounds Bounds Bearcoupe
Defining event
Landing-flare/touchdown: Nose over/nose down
Weather
Visual (VMC) · Day
Status
Completed · report September 6, 2017
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration FSDO
FAA report
20170505004739A
Case key
95119

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

The flight instructor's failure to maintain airplane control during landing when he inadvertently applied brake pressure to the toe brakes when the airplane touched down.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The flight instructor and private pilot were conducting a personal flight in the tailwheel-equipped, experimental, amateur-built airplane. About 10 minutes before landing, the flight instructor, who had no previous experience flying the airplane, took control of the flight from the pilot and continued flying the airplane to landing. Due to his lack of prior experience flying the airplane, which had foot pedals that were raised off the floor, he inadvertently applied pressure to the toe brakes, which resulted in the airplane nosing over immediately on touchdown. The airplane sustained substantial damage to the vertical stabilizer and wing attachment fittings during the accident. Both the pilot and flight instructor reported that there were no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

Factual narrative

On May 5, 2017, about 0915 mountain daylight time, an experimental amateur-built Bounds Bearcoupe, N136BC, nosed-over during landing at Hanksville Airport, Hanksville, Utah. The flight instructor and private pilot were seriously injured, and the airplane sustained substantial damage. The airplane was registered to the private pilot, and operated as a personal flight by the instructor at the time of the accident, under the provisions of 14 Code of Federal Regulations Part 91. The flight departed about 0830 from a backcountry airstrip in Utah, known as Hidden Splendor. Visual meteorological conditions prevailed, and no flight plan had been filed.The instructor stated that about 10 minutes before landing, he asked the pilot if he could take control of the airplane and perform the landing. The pilot agreed, and he transitioned control to the instructor. The instructor stated that the airplane was a unique design, with foot pedals that were raised off the floor. He therefore needed to hold his feet in place on the pedals to reach the toe-brakes, rather than rest his heels on the floor as he was accustomed. As such, there was no reference for him to properly gauge the position of his foot during the landing approach. He stated that as soon as the main landing gear touched the ground, the airplane nosed-over, and he realized he had been inadvertently applying brake pressure. The airplane sustained substantial damage to the vertical stabilizer and wing attach fittings during the accident (Photo 1). The airplane was designed and built by the pilot; it was a mid-wing design, and configured with tailwheel-type landing gear. The pilot reported about 296 hours of flight experience in the airplane, and the landing approach was the first time the instructor had flown the airplane. Both the pilot and instructor reported that there were no preimpact mechanical malfunctions or failures that would have precluded normal operation. Photo 1: Airplane at Accident Site

Aircraft

Registration
N136BC
Reported as
Robert E Bounds Bounds Bearcoupe (NO SERIES)
Category
Airplane, amateur-built
Serial number
01
Built
2013
Airframe hours
289
Engine
Lycoming O-340-A1A, 170 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · June 5, 2016 · 20 hours before
Departed
Hidden Splendor, UT
Destination
HVE · Hanksville, UT
Airport
HVE · Hanksville, runway 17, 2,600 × 120 ft, dirt
Equipment
Electronic multifunction display, Auto-pilot, Angle of attack indicator, ADS-B, Electronic primary flight display

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew · 2

As NTSB recorded them. NTSB leaves out names.

Role
Flight instructor
Age
74
Injuries
Serious
Certificates
Commercial, Flight instructor
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 2, With waivers/limitations
Last flight review
August 3, 2016
Seat
Right
Restraint
3-point
Flight hours
13,500 total · 0.1 in this make and model · 13,500 as pilot in command · 25.3 in the last 90 days · 3.5 in the last 30 days · 2 in the last 24 hours
Role
Pilot
Age
64
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, With waivers/limitations
Last flight review
March 4, 2017
Seat
Left
Restraint
3-point
Flight hours
1,572 total · 296 in this make and model · 1,572 as pilot in command · 13 in the last 90 days · 9 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 15 knots
Visibility
60 statute miles
Lowest ceiling
None
Temperature
64 °F, dew point 36 °F
Altimeter
30.00 inHg
Observed at
KHVE

Docket · 2

The files NTSB released with the investigation on June 21, 2017, on NTSB’s docket system: statements, records, photos and specialists’ reports. 776 KB in all.

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.