ANC20CA081

NTSB accident investigation · Performer High Performer · Chandalar Shelf, AK · August 12, 2020

Accident · No injuriesClass 4 · Data collectionFinal report
Date
August 11, 2020, 21:00 local (Aug 12, 2020, 05:00 UTC)
Place
Chandalar Shelf, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2907Performer High Performer
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
Alaska Regional Office
Parties
FAA
FAA report
20200811015379A
Case key
101826

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

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Probable cause

The pilot's selection of unsuitable terrain for landing, which resulted in a loss of control during the landing and a nose over.

Findings · 5

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.

Performance/control parametersAircraft › Aircraft oper/perf/capability · Not attained/maintainedJoseph E Cizek HIGH PERFORMER: 1 caseAll aircraft: 1,269 casesProbable cause
Terrain: rough terrainEnvironmental issues › Physical environment · Effect on operationJoseph E Cizek HIGH PERFORMER: 1 caseAll aircraft: 442 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Effect on operationJoseph E Cizek HIGH PERFORMER: 1 caseAll aircraft: 933 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 reported that during the landing roll out, on a remote off-airport ridgeline with vegetation about two ft in height, he attempted a turn to the left while braking. While traveling "less than 10 mph", the right wheel struck vegetation, the pilot lost control, and the airplane nosed over. The airplane subsequently came to rest inverted and sustained substantial damage to the rudder. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Factual narrative

The pilot reported that during the landing roll out, on a remote off-airport ridgeline with vegetation about two ft in height, he attempted a turn to the left while braking. While traveling "less than 10 mph", the right wheel struck vegetation, the pilot lost control, and the airplane nosed over. The airplane subsequently came to rest inverted and sustained substantial damage to the rudder. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

Aircraft

Registration
N2907
Reported as
Performer High Performer
Category
Airplane
Serial number
2016
Built
2017
Airframe hours
118
Engine
Lycoming O-320-A2B, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · June 16, 2020
Destination
Chandalar Shelf, AK
Equipment
None

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
56
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, Without waivers/limitations
Last flight review
June 2, 2019
Seat
Front
Restraint
3-point
Flight hours
520 total · 460 in this make and model · 420 as pilot in command · 40 in the last 90 days · 20 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
50° at 4 knots
Visibility
10 statute miles
Lowest ceiling
4,300 ft overcast
Temperature
54 °F, dew point 45 °F
Altimeter
29.87 inHg
Observed at
PARC, 53 nm away

Docket · 2

The files NTSB released with the investigation on September 8, 2021, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.0 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.