ANC08CA068

NTSB accident investigation · Piper PA-18 · Anchorage, AK · May 17, 2008

Accident · No injuriesData collectionFinal report
Date
May 17, 2008, 10:12 local (18:12 UTC)
Place
Anchorage, AK
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N1912APiper PA-18
Defining event
Landing: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report July 30, 2008
Report
Approved by Office Director
NTSB office
Alaska Regional Office
FAA report
20080517835349A
Case key
68038

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 inadequate compensation for a crosswind during landing. Contributing to the accident was the crosswind and an inadvertent ground loop.

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.

Wind: crosswindEnvironmental issues › Conditions/weather/phenomena · Contributed to outcomePiper PA-18-125: 1 caseAll aircraft: 1,008 casesProbable cause
Performance/control parameters: crosswind correctionAircraft › Aircraft oper/perf/capability · Not attained/maintainedPiper PA-18-125: 1 caseAll aircraft: 184 casesProbable cause
Action: incorrect action performancePersonnel issues › Action/decision · PilotPiper PA-18-125: 1 caseAll aircraft: 1,386 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 of the tailwheel-equipped airplane reported that he was landing on runway 25, a dry paved runway, which required a correction for a slight left crosswind. He said that during touchdown, the airplane's left wing lifted, and he attempted to abort the landing by adding full engine power. The airplane's right wing struck the ground, and the airplane ground looped to the left, then nosed down. The airplane sustained substantial damage to the wings, fuselage, and empennage. Winds at the time of the accident were reported to be 190 degrees at 4 knots. The pilot noted in his written report to the NTSB that there were no preaccident mechanical anomalies with the airplane.

Factual narrative

The pilot of the tailwheel-equipped airplane reported that he was landing on runway 25, a dry paved runway, which required a correction for a slight left crosswind. He said that during touchdown, the airplane's left wing lifted, and he attempted to abort the landing by adding full engine power. The airplane's right wing struck the ground, and the airplane ground looped to the left, then nosed down. The airplane sustained substantial damage to the wings, fuselage, and empennage. Winds at the time of the accident were reported to be 190 degrees at 4 knots. The pilot noted in his written report to the NTSB that there were no preaccident mechanical anomalies with the airplane.

Aircraft

Registration
N1912A
Reported as
Piper PA-18
Category
Airplane
Serial number
18-1748
Airframe hours
3,255
Engine
Lycoming O-320, 150 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
William G. Roth
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 1, 2008
Departed
Z22 · Willow, AK
Destination
MRI · Anchorage, AK
Airport
MRI · Merrill Field, runway 25, 4,000 × 100 ft, asphalt

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
48
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land, Single-engine sea
Medical
Class 3, With waivers/limitations
Last flight review
August 1, 2006
Seat
Front
Flight hours
798 total · 651 in this make and model · 716 as pilot in command · 9 in the last 90 days · 4 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
48 °F, dew point 25 °F
Altimeter
29.95 inHg
Observed at
MRI

FAA reports on this event · 1

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

Other investigations on N1912A · 1

Matched to the same aircraft by N-number and date.