Individually Owned: 150,657
Corporate Owned: 137,281
St. Lucie County International Airport
Aircraft Accident/Incident Report
Fort Pierce, Florida 34982
Wednesday, March 1, 2006 12:40 EST
NTSB Narrative Summary Released at Completion of Accident
The pilot stated that about 8 to 10 minutes after takeoff, while still climbing, at an altitude of about 5,000 feet, the airplane lost engine power. The pilot further stated that the gauges showed about 1,000 rpm, and the manifold pressure remained at 25 inches. He turned around and returned to the airport and made attempts to restart the engine, all of which were unsuccessful. The pilot made a forced landing to a clearing short of the airport property, and the airplane incurred substantial damage. A postcrash examination of the airplane revealed that the dual magneto had detached from its mounted position, and was hanging by the ignition harness behind the engine. The magneto had not incurred any damage, and the magneto drive gear was laying in the accessory housing along with one hold-down plate. The retaining nuts, washers and lock washers were not recovered. When tested, the magneto operated on all eight distributor outputs. The impulse coupler was not damaged, and the distributor wiring was intact. There was engine continuity, proper valve action, and compression on all cylinders. Engine oil was present, and there was evidence of some oil having leaked at the back of the engine. No anomalies were noted with either the induction or fuel systems. The airplane had last received an annual inspection on August 2005 when an overhauled engine had been installed. It had accumulated 10 hours since the annual inspection.
NTSB Probable Cause Narrative
Improper magneto installation by maintenance personnel, which resulted in the magneto detaching from the engine and subsequent loss of engine power.
Event Information
| Type of Event | Accident |
| Event Date | 3/1/2006 |
| Event Day of the Week | Wednesday |
| Time of Event | 1240 |
| Event Time Zone | Eastern Standard Time |
| Event City | Fort Pierce |
| Event State | FLORIDA |
| Event Country | -- |
| Zipcode of the event site | 34982 |
| Event Date Year | 2006 |
| Event Date Month | 3 |
| MidAir Collision Indicator | -- |
| On Ground Collision occurred ? | -- |
| Event Location Latitude | 272925N |
| Event Location Longitude | 0802206W |
| Event Location Airport | St. Lucie County International |
| Event Location Nearest Airport ID | FPR |
| 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 | 23 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1453 Eastern Standard Time |
| Direction of event from weather observation facility (degrees) | 170 |
| Weather Observation Facility ID | FPR |
| Elevation of weather observation facility | 23 |
| Distance of event from weather observation facility (units?) | 1 |
| Time Zone of the weather observation | EST |
| Lighting Conditions | Day |
| 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) | 25 |
| Dew Point at event time (in degress fahrenheit) | 9 |
| Wind Direction (degrees magnetic) | 240 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 7 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Gusting |
| Wind Gust (knots) | 0 |
| Altimeter Setting at event time (in. Hg) | 30.12 |
| 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 | 1 |
| Injury Total None | -- |
| Injury Total Serious | -- |
| Injury Total All | 1 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 20007 |
| NTSB Notification Source | FAA ATL Comm. Center |
| NTSB Notification Date | Mar 1 2006 12:00AM |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Aug 29 2006 3:49PM |
| User who most recently changed record | NTSB\JOHB |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Orlando, Florida |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N511G |
| NTSB Number | MIA06LA058 |
| 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 | Mooney |
| Aircraft Model | M20J |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 24-1207 |
| Certified Max Gross Weight | 2740 |
| 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 | Aug 1 2005 12:00AM |
| Airframe hours since last inspection | 10 |
| Airframe Hours | 3525 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Alton F. Robertson |
| Aircraft Owner Street Address | 2400 S. Ocean Drive, Apt 4302 |
| Aircraft Owner City | Fort Pierce |
| Aircraft Owner State | FL |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 34982 |
| 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 | FPR |
| Departure City | Fort Pierce |
| Departure State | FL |
| Departure Country | USA |
| Departure Time | 1230 |
| Departure Time Zone | EST |
| Destination Same as Local Flt | dest & departure same, accident can occur anywhere |
| Destination Airport Code | -- |
| Destination City | -- |
| Destination State | -- |
| Destination Country | -- |
| Specific Phase of Flight | Climb - to cruise |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Apr 20 2006 8:56AM |
| User who most recently changed record | KENJ |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | 32 |
| Runway Length | 4756 |
| Runway Width | 100 |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |