WPR10CA049

NTSB accident investigation · Piper PA-18-150 · Lewiston, ID · November 1, 2009

Accident · No injuriesData collectionFinal report
Date
November 1, 2009, 07:15 local (15:15 UTC)
Place
Lewiston, ID
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N82213Piper PA-18-150
Defining event
Approach-VFR go-around: Collision during takeoff/land
Weather
Visual (VMC) · Day
Status
Completed · report March 3, 2010
Report
Approved by Office Director
NTSB office
Western Pacific Region
Parties
Spokane FSDO
FAA report
20091101021459A
Case key
75033

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 delayed decision to execute a go-around in gusting winds and with up-sloping terrain.

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.

Terrain: sloped/uneven terrainEnvironmental issues › Physical environment · Contributed to outcomePiper PA-18-150: 10 casesAll aircraft: 270 casesProbable cause
Wind: tailwindEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA-18-150: 15 casesAll aircraft: 594 casesProbable cause
Wind: gustsEnvironmental issues › Conditions/weather/phenomena · Effect on operationPiper PA-18-150: 34 casesAll aircraft: 1,199 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, who was making a visual-flight-rules approach to an 800-foot-long remote airstrip, overflew the runway to observe the windsock. Because he observed the windsock hanging limp, he assumed that the winds around the runway were calm, and therefore continued his approach. About the time he reached the approach end of the uphill-sloping runway, the airplane encountered a strong tailwind gust, which pushed it "…too far up the strip to land." The pilot therefore executed a go-around, but his decision was "too late" and he was therefore unable to outclimb the terrain on the departure end of the runway. During the go-around sequence, the airplane's landing gear came in contact with brush and it flipped over onto its back. Ground witnesses told the pilot that all morning the winds had been variable in direction and had been changing rapidly from nearly calm to gusting as high as 20 miles per hour.

Factual narrative

The pilot, who was making a visual flight rules (VFR) approach to a 800-foot long remote airstrip, overflew the runway to observe the windsock. Because he observed the windsock hanging limp, he assumed that the winds around the runway were calm, and therefore continued his approach. About the time he reached the approach end of the uphill-sloping runway, the airplane encountered a strong tailwind gust which pushed it, "…too far up the strip to land." The pilot therefore executed a go-around, but his decision was "too late," and he was therefore unable to out-climb the terrain on the departure end of the runway. During the go-around sequence, the airplane's landing gear came in contact with low growing brush, and it flipped over onto its back. Ground witnesses told the pilot that all morning the winds had been variable in direction and had been changing rapidly from nearly calm to gusting as high as 20 miles per hour.

Aircraft

Registration
N82213
Reported as
Piper PA-18-150
Category
Airplane
Serial number
18-8009031
Airframe hours
992
Engine
Lycoming O-320 SERIES, 180 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
James J. Babb
Registered owner
The Solar Club, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · January 2, 2009
Departed
S80 · Grangeville, ID
Destination
0ID8 · Grangeville, ID
Airport
0ID8 · Pinnacle, runway 09, 800 × 50 ft, grass/turf

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
64
Injuries
None
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 2, With waivers/limitations
Last flight review
October 7, 2008
Seat
Front
Flight hours
2,101 total · 567 in this make and model · 14 in the last 90 days · 5 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Visibility
10 statute miles
Lowest ceiling
None
Temperature
39 °F

Docket · 1

The files NTSB released with the investigation on November 20, 2009, on NTSB’s docket system: statements, records, photos and specialists’ reports. 651 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.

Other investigations on N82213 · 2

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