La Cholla Airpark Airport
Aircraft Accident/Incident Report

Oro Valley, Arizona 85755
Tuesady, April 17, 2012 10:10 MST

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that during the landing he set the rear two wheels down and tried to hold the nose gear up longer than he previously had. As the trike began to slow, the nose gear slammed onto the runway and collapsed. After the aircraft slid to a stop in the middle of the runway, it tipped over onto its right side, which resulted in substantial damage to the right wing.

NTSB Probable Cause Narrative

The pilot’s failure to lower the nose landing gear in time to prevent it from slamming onto the runway and collapsing.

Event Information

Type of Event Accident
Event Date 4/17/2012
Event Day of the Week Tuesday
Time of Event 1010
Event Time Zone Mountain Standard Time
Event City Oro Valley
Event State ARIZONA
Event Country --
Zipcode of the event site 85755
Event Date Year 2012
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 322649N
Event Location Longitude 1110010W
Event Location Airport La Cholla Airpark
Event Location Nearest Airport ID 57AZ
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 Pilot
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
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) 19
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 29952
NTSB Notification Source FAA WP 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 23 2012 5:19PM
User who most recently changed record stam
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N125AP
NTSB Number WPR12CA168
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 APOLLO AIRCRAFT INC
Aircraft Model MONSOON
Aircraft Series Identifier --
Aircraft Serial Number 00004
Certified Max Gross Weight 993
Aircraft Category --
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
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 Apr 16 2012 12:00AM
Airframe hours since last inspection 2
Airframe Hours 24
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MACMILLAN WILLIAM B
Aircraft Owner Street Address --
Aircraft Owner City ENGLEWOOD
Aircraft Owner State CO
Aircraft Owner Country USA
Aircraft Owner Zipcode 80113
Operator is an individual? No
Operator Name MACMILLAN WILLIAM B
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Englewood
Operator State CO
Operator Country USA
Operator Zip code 80113
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 No
Departure Airport Code 57AZ
Departure City Oro Valley
Departure State AZ
Departure Country USA
Departure Time 915
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 57AZ
Destination City Oro Valley
Destination State AZ
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 23 2012 5:19PM
User who most recently changed record stam
Since inspection or accident Time of Accident
Event Location Runway Number and Location 01
Runway Length 4500
Runway Width 44
Sight Seeing flight No
Air Medical Flight No
Medical Flight --