Chandler Municipal Airport
Aircraft Accident/Incident Report

Chandler, Arizona 85249
Saturday, March 26, 2005 8:22 MST

NTSB Narrative Summary Released at Completion of Accident

The airplane ground looped off the runway after encountering a crosswind and a sudden wind gust during landing rollout on runway 22R. The gust was from 330 degrees about 12 knots. The pilot lost directional control of his experimental biplane, and it veered off the runway. Thereafter, it ground looped and nosed over. The wind had been nearly calm when the pilot initiated the flight. No mechanical malfunction or failure was reported with the airplane. Eight minutes after the accident the local wind was reported from 300 degrees at 12 knots.

NTSB Probable Cause Narrative

The pilot's inadequate compensation for the gusting crosswind condition and failure to maintain directional control during landing rollout.

Event Information

Type of Event Accident
Event Date 3/26/2005
Event Day of the Week Saturday
Time of Event 822
Event Time Zone Mountain Standard Time
Event City Chandler
Event State ARIZONA
Event Country --
Zipcode of the event site 85249
Event Date Year 2005
Event Date Month 3
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 331609N
Event Location Longitude 11148677
Event Location Airport Chandler Municipal
Event Location Nearest Airport ID CHD
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 1243
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 830 Mountain Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID CHD
Elevation of weather observation facility 1243
Distance of event from weather observation facility (units?) 0
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) 40
Air Temperature at event time (in degrees celsius) --
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 300
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 12
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.07
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) 17998
NTSB Notification Source FAA
NTSB Notification Date Mar 26 2005 12:00AM
NTSB Notification Time 741
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jul 7 2005 10:33AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Scottsdale, AZ

Aircraft Involved

Aircraft #1

Aircraft Registration Number N124FG
NTSB Number LAX05CA123
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 Peter A. Geiser
Aircraft Model Lee/Geiser Nieuprt17
Aircraft Series Identifier --
Aircraft Serial Number 587
Certified Max Gross Weight --
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Peter A. Geiser
Aircraft Owner Street Address --
Aircraft Owner City --
Aircraft Owner State --
Aircraft Owner Country --
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name Peter A. Geiser
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Mesa
Operator State AZ
Operator Country USA
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 --
Departure Point Same as Event Yes
Departure Airport Code CHD
Departure City Chandler
Departure State AZ
Departure Country USA
Departure Time 810
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code CHD
Destination City Chandler
Destination State AZ
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Apr 14 2005 5:39PM
User who most recently changed record COOS
Since inspection or accident --
Event Location Runway Number and Location 22R
Runway Length 4401
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --