Robert Miller Air Park Airport
Aircraft Accident/Incident Report

Toms River, New Jersey 08731
Wednesday, June 25, 2008 13:46 EDT

NTSB Narrative Summary Released at Completion of Accident

During a soft-field takeoff demonstrated by the student pilot, the certificated flight instructor's(CFI's) seat rolled backward, and he instinctively reached for the control yoke. The airplane yawed to the left, the left wing struck the ground, and the airplane flipped over. The CFI stated that he adjusted the seat forward prior to taxiing the airplane to the runway and recalled "shaking the seat" to assure it was in the locked position. Examination of the seat tracks for the CFI's seat revealed that all four roller housing tangs (feet) were spread and bent, and the corresponding locations on the seat tracks were gouged. Examination of the seat tracks for both seats revealed several seat pin adjustment holes exceeded the dimensions for acceptable wear as described in the Cessna Service Manual, and "excessive wear" was noted to the seat track cap widths and the roller housing tangs. An Airworthiness Directive (AD) which required inspection of the seat tracks was completed 90 hours prior to the accident. The AD did not require inspection for excessive wear to the seat track cap widths and the tangs of the seat housings.

NTSB Probable Cause Narrative

The failure of the pilot's seat to engage or remain engaged due to the improper inspection of the worn seat tracks.

Event Information

Type of Event Accident
Event Date 6/25/2008
Event Day of the Week Wednesday
Time of Event 1346
Event Time Zone Eastern Daylight Time
Event City Toms River
Event State NEW JERSEY
Event Country --
Zipcode of the event site 08731
Event Date Year 2008
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 395538N
Event Location Longitude 0741732W
Event Location Airport Robert Miller Air Park
Event Location Nearest Airport ID MJX
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 82
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1335 Eastern Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID MJX
Elevation of weather observation facility 82
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 7500
Sky/Lowest/Cloud Conditions Scattered
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) 29
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 14
Altimeter Setting at event time (in. Hg) 30.16
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 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 25956
NTSB Notification Source FAA Eastern Region Operations
NTSB Notification Date Jun 25 2008 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 15 2009 4:24PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Philadelphia FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N13105
NTSB Number NYC08LA228
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 172M
Aircraft Series Identifier --
Aircraft Serial Number 17262499
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jun 16 2007 12:00AM
Airframe hours since last inspection 90
Airframe Hours 8631
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Lakehurst Navy Flying Club
Aircraft Owner Street Address --
Aircraft Owner City Lakehurst
Aircraft Owner State NJ
Aircraft Owner Country USA
Aircraft Owner Zipcode 08733
Operator is an individual? No
Operator Name Lakehurst Navy Flying Club
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Lakehurst
Operator State NJ
Operator Country USA
Operator Zip code 08733
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code MJX
Departure City Toms River
Departure State NJ
Departure Country USA
Departure Time 1346
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code NEL
Destination City Lakehurst
Destination State NJ
Destination Country USA
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 5 2009 12:35PM
User who most recently changed record johb
Since inspection or accident Time of Accident
Event Location Runway Number and Location 24
Runway Length 5949
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --