WPR21LA356

NTSB accident investigation · Kitfox S7 · Hooper, UT · September 23, 2021

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
September 23, 2021, 16:22 local (22:22 UTC)
Place
Hooper, UT
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N696CPKitfox S7
Defining event
Landing-landing roll: Nose over/nose down
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20210923016329A
Case key
103986

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 pilot’s excessive brake pressure which resulted in the airplane nosing over and coming to rest inverted.

Findings · 3

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.

Landing gear system: brakeAircraft › Aircraft systems · Incorrect use/operationCasey Perkins S-7 STI: 1 caseAll aircraft: 297 casesProbable cause
Performance/control parameters: surface speed/brakingAircraft › Aircraft oper/perf/capability · Incorrect use/operationCasey Perkins S-7 STI: 1 caseAll aircraft: 238 casesProbable cause

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 pilot in the tailwheel equipped airplane reported that, he made a normal approach and landed a little fast about 1/3 of the way down the grass airstrip. As he reached the last 1/3 of the airstrip, he got nervous and applied the brakes hard. The airplane subsequently nosed over and came to rest inverted substantially damaging the vertical stabilizer and rudder. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N696CP
Reported as
Kitfox S7
Category
Airplane, amateur-built
Serial number
KA19108403
Built
2021
Airframe hours
41.6
Engine
Rotax 912STI, 155 hp, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · July 17, 2021 · 11 hours before
Departed
ORD · Ogden, UT
Destination
Same as departure
Airport
N/A · Private
Equipment
Electronic flight bag or handheld device, ADS-B, Electronic multifunction display, Electronic primary flight display, Auto-pilot, Angle of attack indicator

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

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
34
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Seat
Left
Restraint
4-point
Flight hours
285 total · 42 in this make and model · 235 as pilot in command · 48 in the last 90 days · 35 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
290° at 9 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 36 °F
Altimeter
30.11 inHg
Observed at
KOGD, 6 nm away
METAR
KOGD 232153Z 29009KT 10SM CLR 26/02 A3011 RMK AO2 SLP152 T02560017

Docket · 2

The files NTSB released with the investigation on March 24, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.6 MB 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.