N4055Z

Substantial
None

Piper PA-18-150S/N: 18-8060

Accident Details

Date
Wednesday, October 26, 2005
NTSB Number
DEN06LA011
Location
Cortez, CO
Event ID
20051103X01775
Coordinates
37.303054, -108.628051
Aircraft Damage
Substantial
Highest Injury
None
Fatalities
0
Serious Injuries
0
Minor Injuries
0
Uninjured
2
Total Aboard
2

Probable Cause and Findings

the pilot's failure to maintain directional control of the airplane, resulting in a ground loop. Contributing factors were the excessive descent rate, the obstacle (horse), the high density altitude, and the tailwind.

Aircraft Information

Registration
Make
PIPER
Serial Number
18-8060
Engine Type
Reciprocating
Model / ICAO
PA-18-150PA18
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1
Seats
2
FAA Model
PA-18-150

Registered Owner (Current)

Name
MARTIN LAWRENCE M
Address
PO BOX 557
City
CLAM GULCH
State / Zip Code
AK 99568-0557
Country
United States

Analysis

On October 26, 2005, approximately 1545 mountain standard time, a Piper PA-18-150, N4055Z, piloted by a private pilot, was substantially damaged when it ground looped during landing near Cortez Municipal Airport (CEZ), Cortez, Colorado. Visual meteorological conditions prevailed at the time of the accident. The personal flight was being conducted under the provisions of Title 14 CFR Part 91 without a flight plan. The pilot and passenger were not injured. The local flight originated from the pilot's private airstrip, near CEZ, approximately 1430.

According to a telephone interview with the pilot and the accident report he subsequently submitted, he was attempting to land at his home when he noticed a horse near the approach end of the runway. He elected to land long to avoid a horse but then realized insufficient runway remained. He attempted a go-around and added full power but could not arrest the sink rate. He decided to land the airplane on the runway remaining. He landed with power applied in a nose high attitude right at stall speed. The left wing struck the ground, causing the airplane to rotate 180 degrees to the left and dragging the right wingtip dragged along the ground. The pilot said he was unfamiliar with mountain flying conditions in Cortez, Colorado, (5,918 feet msl) as he had done most of his flying near sea level in Alaska. He said he had just filled the fuel tanks to capacity, and the extra weight of the fuel and the rear seat passenger made the airplane heavier than what he was accustom. He also said there was a 5 knot tailwind during the landing.

Postaccident examination disclosed a broken left wing spar. The right wingtip was scratched. Density altitude at the time of the accident was calculated to be 7,741 feet mean seal level (msl).

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# DEN06LA011