WPR14CA339

NTSB accident investigation · Piper PA 18 · Lysite, WY · August 8, 2014

Accident · Minor injuriesData collectionFinal report
Date
August 8, 2014, 14:00 local (20:00 UTC)
Place
Lysite, WY
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N1765PPiper PA 18
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report October 20, 2014
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Federal Aviation Administration
FAA report
20140808013269A
Case key
89845

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 failure to ensure the airplane was configured for takeoff.

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.

Action: forgotten action/omissionPersonnel issues › Action/decision · PilotPiper PA-18: 1 caseAll aircraft: 440 casesProbable cause
Performance/control parameters: configurationAircraft › Aircraft oper/perf/capability · Incorrect use/operationPiper PA-18: 1 caseAll aircraft: 80 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 he did not have the airplane configured properly for takeoff. During the takeoff roll from a field, he took his hand off the throttle to extend a notch of flaps. The throttle lever subsequently moved out and power was reduced. The pilot did not recognize the power reduction, or that the elevator trim was set to a nose down attitude before the airplane traveled off the runway, down an embankment, nosed over, and came to rest inverted. The airplane sustained substantial damage to both wings and the rudder. The pilot reported no mechanical failures or malfunctions that would have precluded normal operations.

Factual narrative

The pilot reported that he did not have the airplane configured properly for takeoff. During the takeoff roll from a field, he took his hand off the throttle to extend a notch of flaps. The throttle lever subsequently moved out and power was reduced. The pilot did not recognize the power reduction, or that the elevator trim was set to a nose down attitude before the airplane traveled off the runway, down an embankment, nosed over, and came to rest inverted. The airplane sustained substantial damage to both wings and the rudder. The pilot reported no mechanical failures or malfunctions that would have precluded normal operations.

Aircraft

Registration
N1765P
Reported as
Piper PA 18 (180)
Category
Airplane
Serial number
18-4090
Built
1954
Airframe hours
3,252
Engine
Lycoming O-360-C4P, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Hendry Robert
Registered owner
Hendry Robert
Airworthiness certificate
Standard, Normal; Standard, Utility
Last inspection
Annual · July 10, 2014
Departed
Lysite, WY
Destination
WRL · Worland, WY

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
57
Injuries
Minor
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Without waivers/limitations
Last flight review
September 13, 2013
Seat
Front
Flight hours
3,415 total · 69 in this make and model · 3,415 as pilot in command · 67 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 5 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
79 °F, dew point 41 °F
Altimeter
30.09 inHg
Observed at
RIW, 35 nm away

Docket · 2

The files NTSB released with the investigation on October 10, 2014, on NTSB’s docket system: statements, records, photos and specialists’ reports. 736 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.