Greenwood Lake Airport
Aircraft Accident/Incident Report

West Milford, New Jersey 07480
Sunday, June 20, 2010 16:05 EDT

NTSB Narrative Summary Released at Completion of Accident

The commercial pilot was performing a forward slip maneuver during landing when the student pilot-rated passenger pushed on the control yoke which resulted in a descent that reached an indicated airspeed of 100 knots. The student pilot did not relinquish the controls to the commercial pilot until the airplane touched down. The pilot was unable to stop the airplane on the remaining runway. It overran the paved surface, went through a perimeter fence, and came to rest on a rocky incline. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation.

NTSB Probable Cause Narrative

The student pilot’s control interference which resulted in a landing with a higher than normal airspeed, and the commercial pilot’s failure to initiate a go-around to avoid the runway overrun.

Event Information

Type of Event Accident
Event Date 6/20/2010
Event Day of the Week Sunday
Time of Event 1605
Event Time Zone Eastern Daylight Time
Event City West Milford
Event State NEW JERSEY
Event Country --
Zipcode of the event site 07480
Event Date Year 2010
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 410717N
Event Location Longitude 0742154W
Event Location Airport Greenwood Lake Airport
Event Location Nearest Airport ID 4N1
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 791
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1553 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 288
Weather Observation Facility ID FWN
Elevation of weather observation facility 421
Distance of event from weather observation facility (units?) 13
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 9000
Lowest Non-Ceiling Height 9000
Sky/Lowest/Cloud Conditions Thin Broken
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 31
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 14
Altimeter Setting at event time (in. Hg) 29.86
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
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 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 28577
NTSB Notification Source FAA Eastern ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 16 2011 9:55AM
User who most recently changed record andj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N738QZ
NTSB Number ERA10LA322
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 CESSNA
Aircraft Model 172N
Aircraft Series Identifier --
Aircraft Serial Number 17270167
Certified Max Gross Weight 2300
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 Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jun 17 2010 12:00AM
Airframe hours since last inspection 10
Airframe Hours 10155
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type C91
Aircraft Owner Name SHERMAN AVIATION LLC
Aircraft Owner Street Address --
Aircraft Owner City FAIRFIELD
Aircraft Owner State NJ
Aircraft Owner Country USA
Aircraft Owner Zipcode 07004-3514
Operator is an individual? Yes
Operator Name Century Air
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Fairfield
Operator State NJ
Operator Country USA
Operator Zip code 07004
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 Yes
Departure Point Same as Event Yes
Departure Airport Code 4N1
Departure City West Milford
Departure State NJ
Departure Country USA
Departure Time 1555
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 4N1
Destination City West Milford
Destination State NJ
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 21 2011 11:06AM
User who most recently changed record kenj
Since inspection or accident Time of Accident
Event Location Runway Number and Location 24
Runway Length 3471
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --