Phoenix Deer Valley Airport
Aircraft Accident/Incident Report

Phoenix, Arizona 85027
Sunday, September 4, 2011 9:20 MST

NTSB Narrative Summary Released at Completion of Accident

The private pilot and certified flight instructor (CFI) were practicing a series of landings. The CFI said that the second and third landings were short field landings and were not excessively hard. During the landing roll on the third landing, the nose of the airplane lowered, and the CFI suspected a collapse of the oleo strut. The CFI took control of the airplane and taxied down the runway. The CFI stated that, during the taxi, he noted nothing irregular with the handling of the airplane and informed the tower air traffic controller that this was going to be a full stop landing. After contacting the ground controller, the CFI added power, and noticed that the steering had failed, so he attempted to use differential thrust to turn the airplane. He then heard the propellers contact the ground and immediately shut down both engines. After exiting the airplane, he noticed that the nose gear was extended forward and resting against the most forward fuselage rib in the wheel well. A postaccident examination revealed a fractured and separated drag link and hydraulic fluid leaking from the wheel well. Examination of the fractured surfaces revealed rough matte gray features consistent with an overstress fracture.

NTSB Probable Cause Narrative

The pilot's improper flare and hard landing, which resulted in the failure of the nose landing gear drag link in overstress.

Event Information

Type of Event Accident
Event Date 9/4/2011
Event Day of the Week Sunday
Time of Event 920
Event Time Zone Mountain Standard Time
Event City Phoenix
Event State ARIZONA
Event Country --
Zipcode of the event site 85027
Event Date Year 2011
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 334108N
Event Location Longitude 1120511W
Event Location Airport Phoenix Deer Valley Airport
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 1
Degrees magnetic from airport --
Airport Elevation 1478
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 953 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?) 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) 10
Air Temperature at event time (in degrees celsius) 36
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 130
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.83
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KDVT 041553Z AUTO 17008KT 10SM CLR 34/10 A2982 RMK
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 29649
NTSB Notification Source AWP 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 Mar 22 2012 10:16AM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N316PA
NTSB Number WPR11LA471
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 PIPER
Aircraft Model PA-44-180
Aircraft Series Identifier --
Aircraft Serial Number 4496125
Certified Max Gross Weight 3800
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 4
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Aug 26 2011 12:00AM
Airframe hours since last inspection 20
Airframe Hours 4382
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name BIRD ACQUISITION LLC
Aircraft Owner Street Address 62 WALNUT ST FL 3
Aircraft Owner City WELLESLEY HILLS
Aircraft Owner State MA
Aircraft Owner Country USA
Aircraft Owner Zipcode 02481-2109
Operator is an individual? No
Operator Name BIRD ACQUISITION LLC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 62 WALNUT ST FL 3
Operator City WELLESLEY HILLS
Operator State MA
Operator Country USA
Operator Zip code 02481-2109
Operator Code FQAS
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code DVT
Departure City Phoenix
Departure State AZ
Departure Country USA
Departure Time 740
Departure Time Zone MST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code DVT
Destination City Phoenix
Destination State AZ
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 13 2012 6:07PM
User who most recently changed record coos
Since inspection or accident Time of Accident
Event Location Runway Number and Location 07R
Runway Length 8197
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --