St. Johns Industrial Airport
Aircraft Accident/Incident Report

St. Johns, Arizona 85936
Monday, June 30, 2003 11:45 MST

NTSB Narrative Summary Released at Completion of Accident

The airplane ground looped during the landing roll out on runway 14. The pilot checked the automated surface observation system (ASOS) and noted it was an hour old. He then overflew the airport and checked the windsock. The windsock was indicating wind conditions 180 degrees different than the ASOS. The pilot then called on the Unicom and verified that the winds were blowing opposite the direction as indicated on the ASOS. The Unicom operator, who is also the airport manager, confirmed the pilot's observation, and the pilot landed the airplane. During the landing roll out, the wind shifted from a right quartering headwind to a right quartering tailwind that blew the airplane to the right. It ground looped, impacted a ditch, and bent the left wing approximately 3 feet inboard of the wing tip. The pilot did not report any mechanical malfunctions prior to the accident. The METAR reports for the St. Johns airport were reviewed. At 1154, the winds were from 260 degrees at 14 knots. For the 1254 observation, the winds were from 300 degrees at 7 knots, gusting to 15; the winds during the hour were noted to be variable from 230 to 030 degrees.

NTSB Probable Cause Narrative

the pilot's inadequate compensation for the gusting and shifting wind conditions, which resulted in a failure to maintain directional control and a ground loop. The gusting and shifting wind conditions were factors in the accident.

Event Information

Type of Event Accident
Event Date 6/30/2003
Event Day of the Week Monday
Time of Event 1145
Event Time Zone Mountain Standard Time
Event City St. Johns
Event State ARIZONA
Event Country --
Zipcode of the event site 85936
Event Date Year 2003
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 344900N
Event Location Longitude 1092400W
Event Location Airport St. Johns Industrial Airport
Event Location Nearest Airport ID SJN
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1154 Mountain Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID SJN
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 33
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 250
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 12
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 15
Altimeter Setting at event time (in. Hg) 30.22
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) 14065
NTSB Notification Source FAA
NTSB Notification Date Jun 30 2003 12:00AM
NTSB Notification Time 1336
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Sep 30 2003 9:55AM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office FAA-SDL-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6216M
NTSB Number LAX03CA219
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Stinson
Aircraft Model 108-3
Aircraft Series Identifier --
Aircraft Serial Number 108-4216
Certified Max Gross Weight 2400
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft --
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Keith Lassen
Aircraft Owner Street Address --
Aircraft Owner City Bradenton
Aircraft Owner State FL
Aircraft Owner Country USA
Aircraft Owner Zipcode 34209
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
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 No
Departure Airport Code LSV
Departure City Las Vegas
Departure State NM
Departure Country USA
Departure Time 1145
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code E24
Destination City Whiteriver
Destination State AZ
Destination Country USA
Specific Phase of Flight Landing - roll
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Jul 22 2003 4:35PM
User who most recently changed record COOS
Since inspection or accident --
Event Location Runway Number and Location 14
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --