N4036E

Substantial
None

Piper PA-18 S/N: 18-7809002

Summary

On April 10, 1999, a Piper PA-18 (N4036E) was involved in an incident near Boulder, MT. All 2 people aboard were uninjured. The aircraft sustained substantial damage.

The National Transportation Safety Board determined the probable cause of this incident to be: The pilot-in-command's failure to maintain directional control after encountering a dust-devil during landing rollout, resulting in a ground loop and collapse of the main landing gear. Factors include the dust-devil.

On April 10, 1999, approximately 1230 mountain daylight time, N4036E, a Piper PA-18, sustained substantial damage when it ground-looped after landing off-airport near Boulder, Montana. The private pilot and his passenger were uninjured. The flight, conducted in visual meteorological conditions, had originated at Bozeman, Montana. There was no flight plan filed for the flight, and no report of the ELT actuating.

The pilot stated that he was landing on a north-south dirt road to the south, near the Carey ranch, southeast of Boulder. He stated that the winds were calm and the airplane rolled into a dust devil and directional control was lost. He said there were no ruts or ditches on the road.

This incident is documented in NTSB report SEA99LA050. AviatorDB cross-references NTSB investigation data with FAA registry records to provide comprehensive safety information for aircraft N4036E.

Accident Details

Date
Saturday, April 10, 1999
NTSB Number
SEA99LA050
Location
BOULDER, MT
Event ID
20001205X00564
Coordinates
46.170730, -111.989280
Nearest Airport
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-in-command's failure to maintain directional control after encountering a dust-devil during landing rollout, resulting in a ground loop and collapse of the main landing gear. Factors include the dust-devil.

Aircraft Information

Registration
Make
PIPER
Serial Number
18-7809002
Engine Type
Reciprocating
Year Built
1977
Model / ICAO
PA-18 PA18
Aircraft Type
Fixed Wing Single Engine
No. of Engines
1
Seats
2
FAA Model
PA-18-150

Registered Owner (Current)

Name
RIEGER JOHN R
Address
147 PLEVNA RD S
City
PLEVNA
State / Zip Code
MT 59344
Country
United States

Analysis

On April 10, 1999, approximately 1230 mountain daylight time, N4036E, a Piper PA-18, sustained substantial damage when it ground-looped after landing off-airport near Boulder, Montana. The private pilot and his passenger were uninjured. The flight, conducted in visual meteorological conditions, had originated at Bozeman, Montana. There was no flight plan filed for the flight, and no report of the ELT actuating.

The pilot stated that he was landing on a north-south dirt road to the south, near the Carey ranch, southeast of Boulder. He stated that the winds were calm and the airplane rolled into a dust devil and directional control was lost. He said there were no ruts or ditches on the road. The pilot reported that all his flight experience was in tailwheel airplanes, and did not report any mechanical malfunctions with the airplane.

Data Source

Data provided by the National Transportation Safety Board (NTSB). For more information on this event, visit the NTSB Records Search website. NTSB# SEA99LA050