WPR22LA112

NTSB accident investigation · Gregory S Miller GM CUB · Monument, OR · February 26, 2022

Accident · Minor injuriesClass 4 · LimitedFinal report
Date
February 26, 2022, 13:00 local (21:00 UTC)
Place
Monument, OR · Open field
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N9013FGregory S Miller GM CUB
Defining event
Takeoff: Loss of control on ground
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
20220226003619A
Case key
104706

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 failure of the pilot to maintain directional control during takeoff, which resulted in an impact with a tree.

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.

Performance/control parameters: directional controlAircraft › Aircraft oper/perf/capability · Not attained/maintainedGregory S Miller GM CUB: 1 caseAll aircraft: 3,958 casesProbable cause
Object/animal/substance: tree(s)Environmental issues › Physical environment · Effect on equipmentGregory S Miller GM CUB: 1 caseAll aircraft: 933 cases

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 of the tailwheel equipped airplane reported that, prior to takeoff, he had the airplane positioned perpendicular to the direction of takeoff. During takeoff, when he added power and attempted to turn and align the airplane with the runway, he lost directional control. Subsequently, the airplane ground looped and struck a tree with the right wing, which resulted in substantial damage. The pilot reported that there were no preaccident malfunctions or failures with the airplane that would have precluded normal operation.

Aircraft

Registration
N9013F
Reported as
Gregory S Miller GM CUB (NO SERIES)
Category
Airplane, amateur-built
Serial number
JA1805121
Built
2020
Airframe hours
140
Engine
Lycoming O-320-A2B, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · August 1, 2021
Departed
Monument, OR
Destination
TTD · Portland, OR
Airport
Private strip, runway 28, 600 × 75 ft, grass/turf
Equipment
Handheld GPS, ADS-B

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
58
Injuries
None
Certificate
Commercial
Airplane ratings
Single-engine land, Single-engine sea
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
December 18, 2021
Seat
Front
Restraint
3-point
Flight hours
3,805 total · 1,105 in this make and model · 3,755 as pilot in command · 40 in the last 90 days · 16 in the last 30 days · 3 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
100° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
39 °F, dew point 18 °F
Altimeter
30.30 inHg
Observed at
KGCD, 36 nm away
METAR
KGCD 262055Z AUTO 10007KT 10SM CLR 04/M08 A3030 RMK A02 T00351081

FAA reports on this event · 1

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