CEN09CA130

NTSB accident investigation · Piper PA-18-150 · Elrosa, MN · January 10, 2009

Accident · No injuriesData collectionFinal report
Date
January 10, 2009, 10:30 local (16:30 UTC)
Place
Elrosa, MN
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N2553SPiper PA-18-150
Defining event
Landing: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report June 11, 2009
Report
Approved by Office Director
NTSB office
Central Region
Parties
FAA-Minneapolis FSDO
FAA report
20090110002019A
Case key
73225

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 inability to maintain control after touchdown on a snow-covered runway.

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.

Performance/control parametersAircraft › Aircraft oper/perf/capability · Not attained/maintainedAll aircraft: 1,269 casesProbable cause
Runway/land/takeoff/taxi surface: snow/slush/ice covered surfaceEnvironmental issues › Physical environment · Effect on operationAll aircraft: 219 cases
Runway/land/takeoff/taxi surface: snow/slush/ice covered surfaceEnvironmental issues › Physical environment · Ability to respond/compensateAll aircraft: 219 casesProbable cause
Terrain: snowy/icy terrainEnvironmental issues › Physical environment · Awareness of conditionAll aircraft: 77 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 elected to attempt a landing in a snow-covered field. The tailwheel-equipped airplane touched down on the main wheels in a "tail low" attitude. The pilot did not initially realize that the snow was too soft and deep. He added full power and pulled back on the stick, but he was unable to prevent the airplane from nosing over. It slid for approximately 7 feet before coming to rest. After the accident, the pilot determined that the snow was about 14 inches deep. He commented that although the airplane was equipped with large diameter tires, the snow was too deep. He reported that there were no malfunctions or failures associated with the airplane prior to the accident. The vertical stabilizer and rudder were damaged when the airplane nosed over.

Factual narrative

The pilot elected to attempt a landing at a field. The tail wheel equipped airplane touched down on the main wheels in a "tail low" attitude. The pilot did not initially realize that the snow was too soft and deep. He added full power and pulled back on the stick, but he was unable to prevent the airplane from nosing over. It slid for approximately 7 feet before coming to rest. The vertical stabilizer and rudder were damaged when the airplane nosed over. After the accident, the pilot determined that the snow was about 14 inches deep. He commented that although the airplane was equipped with large diameter tires, the snow was too deep. He reported that there were no malfunctions or failures associated with the airplane prior to the accident.

Aircraft

Registration
N2553S
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-7909159
Airframe hours
1,798
Engine
Lycoming O-320 SERIES, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Airworthiness certificate
Standard, Utility; Standard, Normal
Last inspection
Annual · November 7, 2008
Departed
LJF · Litchfield, MN
Destination
Litchfield, MN

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
27
Injuries
None
Certificate
Private
Airplane ratings
Single-engine sea, Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Without waivers/limitations
Last flight review
January 9, 2008
Seat
Front
Flight hours
745 total · 365 in this make and model · 15 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
210° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
-0 °F, dew point -8 °F
Altimeter
30.22 inHg
Observed at
GHW, 17 nm away

FAA reports on this event · 1

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