Individually Owned: 150,657
Corporate Owned: 137,281
Marlboro Airport
Aircraft Accident/Incident Report
Matawan, New Jersey 07747
Saturday, July 13, 2002 17:10 EDT
NTSB Narrative Summary Released at Completion of Accident
The pilot reported that there were no discrepancies during the taxi, run-up, and takeoff roll. The airplane initially climbed approximately 20 degrees nose-up, and began to bank left. About 200 feet above the ground, the pilot and passenger heard a "bang," and the airplane continued to roll left. The airplane then spun to the right, and impacted a wooded area in a nose-down attitude. Examination of the wreckage revealed that a portion of the wooden propeller was almost entirely embedded in an approximate 3-inch diameter tree branch. The number nine front spark plug was found ejected from the engine. A burned torch mark was present on the underside of the cowling, in the vicinity of the number nine cylinder. Additionally, three other spark plugs were found loose in their cylinders. Review of maintenance records revealed that an annual inspection was performed on the airplane about 1 month prior to the accident. During the inspection, the spark plugs were cleaned, gapped, and rotated. Since the inspection, the airplane had flown approximately 30 minutes. The emergency procedures checklist, for the same make and model as accident airplane, included setting a descent attitude following an engine failure. Review of FAA publications regarding accelerated maneuver stalls, revealed that an airplane will stall at a higher indicated airspeed when excessive maneuvering loads are imposed by steep turns, pullups, or other abrupt changes in flightpath.
NTSB Probable Cause Narrative
The pilot's excessive maneuvering and failure to maintain aircraft control, following a partial power loss during the initial climb, which resulted in an inadvertent stall/spin. A factor in the accident was an inadequate annual condition inspection performed by the certificated mechanic.
Event Information
| Type of Event | Accident |
| Event Date | 7/13/2002 |
| Event Day of the Week | Saturday |
| Time of Event | 1710 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Matawan |
| Event State | NEW JERSEY |
| Event Country | -- |
| Zipcode of the event site | 07747 |
| Event Date Year | 2002 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 402158N |
| Event Location Longitude | 0741516W |
| Event Location Airport | Marlboro Airport |
| Event Location Nearest Airport ID | 2N8 |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 1 |
| Degrees magnetic from airport | 270 |
| Airport Elevation | 122 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1651 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 360 |
| Weather Observation Facility ID | EWR |
| Elevation of weather observation facility | 18 |
| Distance of event from weather observation facility (units?) | 15 |
| Time Zone of the weather observation | EDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 25000 |
| Lowest Non-Ceiling Height | 5000 |
| Sky/Lowest/Cloud Conditions | Few |
| 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) | 27 |
| Dew Point at event time (in degress fahrenheit) | 18 |
| Wind Direction (degrees magnetic) | 150 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 11 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30 |
| 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 | -- |
| Injury Total None | -- |
| Injury Total Serious | 2 |
| Injury Total All | 2 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 13205 |
| NTSB Notification Source | EROC |
| NTSB Notification Date | Jul 13 2002 12:00AM |
| NTSB Notification Time | 1830 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Apr 18 2003 4:34PM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Teterboro, NJ |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N69GC |
| NTSB Number | NYC02FA138 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | None |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Yakovlev |
| Aircraft Model | YAK 52 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | KYA542027 |
| Certified Max Gross Weight | -- |
| Aircraft Category | Airplane |
| Aircraft Registration Class | U.S. Registered/U.S. Soil |
| 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 | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jul 10 2002 12:00AM |
| Airframe hours since last inspection | 0.5 |
| Airframe Hours | 1200 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | John H. Griffin |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Middletown |
| Aircraft Owner State | NJ |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 07748 |
| 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 | Yes |
| Departure Airport Code | 2N8 |
| Departure City | MATAWAN |
| Departure State | NJ |
| Departure Country | USA |
| Departure Time | 1710 |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | 2N8 |
| Destination City | -- |
| Destination State | -- |
| Destination Country | -- |
| Specific Phase of Flight | Takeoff - initial climb |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Feb 7 2003 1:51PM |
| User who most recently changed record | PEAR |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | 27 |
| Runway Length | 2156 |
| Runway Width | 50 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |