Worland Municipal Airport
Aircraft Accident/Incident Report

Worland, Wyoming 82401
Friday, February 1, 2013 16:00 MST

NTSB Narrative Summary Released at Completion of Accident

The pilot stated that during the landing roll he ground looped the airplane causing structural damage to the left wing. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

NTSB Probable Cause Narrative

The pilot's failure to maintain directional control during landing.

Event Information

Type of Event Accident
Event Date 2/1/2013
Event Day of the Week Friday
Time of Event 1600
Event Time Zone Mountain Standard Time
Event City Worland
Event State WYOMING
Event Country --
Zipcode of the event site 82401
Event Date Year 2013
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 435700N
Event Location Longitude 1075700W
Event Location Airport Worland Municipal Airport
Event Location Nearest Airport ID KWRL
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID KWRL
Elevation of weather observation facility 4252
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height 8500
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) -1
Dew Point at event time (in degress fahrenheit) -5
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.09
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 31103
NTSB Notification Source FAA Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record May 1 2013 7:54PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N83454
NTSB Number WPR13CA114
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-18-150
Aircraft Series Identifier --
Aircraft Serial Number 18-7609140
Certified Max Gross Weight 1700
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats 1
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 15 2012 12:00AM
Airframe hours since last inspection --
Airframe Hours 1880
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name M. Mercer Livestock Transportation LLC
Aircraft Owner Street Address --
Aircraft Owner City Hyattville
Aircraft Owner State WY
Aircraft Owner Country USA
Aircraft Owner Zipcode 82428
Operator is an individual? No
Operator Name M. Mercer Livestock Transportation LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Hyattville
Operator State WY
Operator Country USA
Operator Zip code 82428
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code KWRL
Departure City Worland
Departure State WY
Departure Country USA
Departure Time --
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code KWRL
Destination City Worland
Destination State WY
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 7 2013 5:28PM
User who most recently changed record coos
Since inspection or accident Time of Accident
Event Location Runway Number and Location 16
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --