Palm Beach County Park Airport
Aircraft Accident/Incident Report

Lantana, Florida 33462
Sunday, June 10, 2007 19:30 EDT

NTSB Narrative Summary Released at Completion of Accident

The pilot stated that the landing gear would not go down, and there was no green indication for the landing gear indicators. He said he looked out the left window and the main gear was not extended, and that attempts at lowering the landing gear caused the circuit breaker to "trip." Pushing the circuit breaker back in was also ineffective in lowering the landing gear. He said he initiated emergency procedures to extend the landing gear, and the hand pump also failed to extend the landing gear. After recycling and pumping the landing gear for about 20 minutes, he said that it became clear to him that the landing gear would not extend, and he did not know if the right main and nose gear were extended. During the landing he said that he slowly brought the airplane to the ground so as not to cause a propeller strike, and later found that the landing gear was partially extended, causing the airplane to veer off the runway into the rough gravel and sand, incurring damage. After recovery the airplane was examined by an FAA licensed airframe and powerplant mechanic, who found that the hydraulic line on the down-lock side of the nose actuator had separated at the fitting, which had resulted in a total loss of hydraulic fluid, and the landing gear collapsing.

NTSB Probable Cause Narrative

Separation of a landing gear hydraulic line at the fitting for undetermined reasons.

Event Information

Type of Event Accident
Event Date 6/10/2007
Event Day of the Week Sunday
Time of Event 1930
Event Time Zone Eastern Daylight Time
Event City Lantana
Event State FLORIDA
Event Country --
Zipcode of the event site 33462
Event Date Year 2007
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 263544N
Event Location Longitude 0800457W
Event Location Airport Palm Beach County Park
Event Location Nearest Airport ID LNA
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 14
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1954 Eastern Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID LNA
Elevation of weather observation facility 14
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation EDT
Lighting Conditions Dusk
Lowest Ceiling Height --
Lowest Non-Ceiling Height 3000
Sky/Lowest/Cloud Conditions Few
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) 37
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 140
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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) 23065
NTSB Notification Source Pilot
NTSB Notification Date Jun 18 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Feb 28 2008 3:59PM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Fort Lauderdale, Florida

Aircraft Involved

Aircraft #1

Aircraft Registration Number N522GC
NTSB Number MIA07LA109
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 Cessna
Aircraft Model 172RG
Aircraft Series Identifier --
Aircraft Serial Number 172RG0091
Certified Max Gross Weight 2650
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 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 1 2006 12:00AM
Airframe hours since last inspection 90
Airframe Hours 3088
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Corkins Research LLC
Aircraft Owner Street Address 3015 S. Congress Ave, Suite 1
Aircraft Owner City Lake Worth
Aircraft Owner State FL
Aircraft Owner Country USA
Aircraft Owner Zipcode 33461
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 DAB
Departure City Daytona beach
Departure State FL
Departure Country USA
Departure Time 1720
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code LNA
Destination City Lantana
Destination State FL
Destination Country USA
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 7 2008 1:04PM
User who most recently changed record KENJ
Since inspection or accident Time of Accident
Event Location Runway Number and Location 15
Runway Length 3421
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --