Deer Valley Airport
Aircraft Accident/Incident Report

Phoenix, Arizona 85027
Sunday, December 17, 2006 11:15 MST

NTSB Narrative Summary Released at Completion of Accident

The right main landing gear collapsed as the pilot began to taxi the airplane to the runway. The pilot completed the run up and was preparing to depart. As he initiated the airplane's taxi, the right main gear collapsed. Post accident examination showed that none of the landing gear were in the down-and-locked position. Aircraft recovery personnel cycled the landing gear to a down-and-locked position. No mechanical anomalies were noted.

NTSB Probable Cause Narrative

The landing gear collapsed for undetermined reasons while the aircraft was standing on the taxiway with the engines operating.

Event Information

Type of Event Accident
Event Date 12/17/2006
Event Day of the Week Sunday
Time of Event 1115
Event Time Zone Mountain Standard Time
Event City Phoenix
Event State ARIZONA
Event Country --
Zipcode of the event site 85027
Event Date Year 2006
Event Date Month 12
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 334117N
Event Location Longitude 1120457W
Event Location Airport Deer Valley
Event Location Nearest Airport ID DVT
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0.25
Degrees magnetic from airport --
Airport Elevation 1478
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1053 Mountain Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID DVT
Elevation of weather observation facility 1478
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation MST
Lighting Conditions Day
Lowest Ceiling Height 6000
Lowest Non-Ceiling Height 6000
Sky/Lowest/Cloud Conditions Thin Overcast
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) 13
Dew Point at event time (in degress fahrenheit) -6
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.05
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) 21831
NTSB Notification Source FAA Com Center
NTSB Notification Date Dec 17 2006 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jul 25 2007 12:22PM
User who most recently changed record NTSB\lema
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-SDL-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5829X
NTSB Number SEA07LA036
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 23-235
Aircraft Series Identifier --
Aircraft Serial Number 27-592
Certified Max Gross Weight 4800
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 1 2006 12:00AM
Airframe hours since last inspection 2
Airframe Hours 4244
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name On File
Aircraft Owner Street Address --
Aircraft Owner City Scottsdale
Aircraft Owner State AZ
Aircraft Owner Country USA
Aircraft Owner Zipcode 85260
Operator is an individual? No
Operator Name On File
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Scottsdale
Operator State AZ
Operator Country USA
Operator Zip code 85260
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 Yes
Departure Airport Code DVT
Departure City Phoenix
Departure State AZ
Departure Country USA
Departure Time --
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Standing - engine(s) operating
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 13 2007 3:31PM
User who most recently changed record STAM
Since inspection or accident Last Inspection
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --