Individually Owned: 150,657
Corporate Owned: 137,281
Hammonton Muni Airport
Aircraft Accident/Incident Report
Hammonton, New Jersey 08037
Tuesady, October 3, 2006 12:30 EDT
NTSB Narrative Summary Released at Completion of Accident
The airplane was on a base leg to the airport when the engine lost power, and the pilot performed a forced landing to a swampy area short of the runway. A subsequent examination of the engine revealed that within the accessory section, the idler gear assembly, which normally transferred power from the crankshaft to the left magneto and the camshaft, had been displaced. The mounting shaft had also been displaced, and the shaft hole was elongated. The upper portions of both shaft mounting plate retaining screws were missing. The lower screw appeared to be sheared, while the remnant of the upper screw exhibited mechanical damage. The crankcase surface area around the upper screw hole exhibited fretting, and the idler gear had missing and damaged gear teeth. Remnants of the shaft mounting plate retaining screws and screw lockplate were found in the bottom of the crankcase. The engine operating time was below the recommended time between overhaul (TBO). However, the manufacturer also recommended an overhaul if the TBO was not reached within the previous 12 years, and the accident engine had not been overhauled in over 30 years. The failure sequence could not be determined, and although an excessive amount of time had passed since the previous overhaul, the lack of an overhaul could not be correlated to the displacement of the idler gear assembly.
NTSB Probable Cause Narrative
Displacement of the idler gear assembly, which resulted in a loss of camshaft timing, and a subsequent engine failure. Contributing to the accident was the swampy terrain condition.
Event Information
| Type of Event | Accident |
| Event Date | 10/3/2006 |
| Event Day of the Week | Tuesday |
| Time of Event | 1230 |
| Event Time Zone | Eastern Daylight Time |
| Event City | Hammonton |
| Event State | NEW JERSEY |
| Event Country | -- |
| Zipcode of the event site | 08037 |
| Event Date Year | 2006 |
| Event Date Month | 10 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 394018N |
| Event Location Longitude | 0744518W |
| Event Location Airport | Hammonton Muni |
| Event Location Nearest Airport ID | N81 |
| 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 | -- |
| Airport Elevation | 70 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1254 Eastern Daylight Time |
| Direction of event from weather observation facility (degrees) | 120 |
| Weather Observation Facility ID | ACY |
| Elevation of weather observation facility | 75 |
| Distance of event from weather observation facility (units?) | 15 |
| Time Zone of the weather observation | EDT |
| 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) | 27 |
| Dew Point at event time (in degress fahrenheit) | 12 |
| Wind Direction (degrees magnetic) | 210 |
| 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) | 30.2 |
| 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) | 23508 |
| NTSB Notification Source | EROC |
| NTSB Notification Date | Oct 5 2006 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Apr 30 2008 1:28PM |
| User who most recently changed record | NTSB\johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Philadelphia |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N5097P |
| NTSB Number | NYC07LA001 |
| 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-24-250 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 24-107 |
| Certified Max Gross Weight | 2900 |
| 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 | Dec 1 2005 12:00AM |
| Airframe hours since last inspection | 38 |
| Airframe Hours | 3671 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Frank L. Greiner |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | Tuckerton |
| Aircraft Owner State | NJ |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 08087 |
| 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 | 17N |
| Departure City | Cross Keys |
| Departure State | NJ |
| Departure Country | USA |
| Departure Time | -- |
| Departure Time Zone | EDT |
| Destination Same as Local Flt | crash at destination city |
| Destination Airport Code | N81 |
| Destination City | Hammonton |
| Destination State | NJ |
| Destination Country | USA |
| Specific Phase of Flight | Approach |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Apr 17 2008 2:05PM |
| User who most recently changed record | grer |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 23 |
| Runway Length | 3600 |
| Runway Width | 75 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |