Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Holton, Kansas 66436
Thursday, August 16, 2012 21:54 CDT
NTSB Narrative Summary Released at Completion of Accident
During a cross-country flight, the pilot and passengers smelled something burning; smoke began to fill the cockpit, and the oil pressure dropped. The propeller then oversped, and the engine seized. In the ensuing forced landing in the dark, the airplane struck trees and impacted a ditch. The engine was covered with oil, and the right magneto was found hanging by spark plug wires. The separation of the right magneto from the engine allowed the engine oil to escape, causing the engine to seize. The magneto had been installed in the airplane about 7 hours before the accident. The mechanic who had replaced the magneto could not recall if he had torqued the magneto attachment nuts. It is likely that the right magneto attachment nuts were not torqued properly and came loose.
NTSB Probable Cause Narrative
The mechanic's failure to adequately torque the right magneto attachment nuts, allowing the right magneto to come loose, which allowed engine oil to escape, causing the engine to seize.
Event Information
| Type of Event | Accident |
| Event Date | 8/16/2012 |
| Event Day of the Week | Thursday |
| Time of Event | 2154 |
| Event Time Zone | Central Daylight Time |
| Event City | Holton |
| Event State | KANSAS |
| Event Country | -- |
| Zipcode of the event site | 66436 |
| Event Date Year | 2012 |
| Event Date Month | 8 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 392714N |
| Event Location Longitude | 0954720W |
| Event Location Airport | -- |
| Event Location Nearest Airport ID | -- |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | -- |
| Degrees magnetic from airport | -- |
| Airport Elevation | -- |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 2153 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 230 |
| Weather Observation Facility ID | KTOP |
| Elevation of weather observation facility | 1078 |
| Distance of event from weather observation facility (units?) | 40 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Night/Dark |
| 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) | 19 |
| Dew Point at event time (in degress fahrenheit) | 11 |
| Wind Direction (degrees magnetic) | 0 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 0 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.08 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | METAR KTOP 170253Z AUTO 00000KT 10SM CLR 19/11 A30 |
| 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 | 2 |
| Injury Total All | 3 |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 30767 |
| NTSB Notification Source | FAA ACE ROC |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Jan 16 2013 11:15AM |
| User who most recently changed record | johb |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N8546P |
| NTSB Number | CEN12LA551 |
| 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 | PIPER |
| Aircraft Model | PA-24-260 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 24-4003 |
| Certified Max Gross Weight | 3000 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 2 |
| Cabin Crew Seats | 2 |
| 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 | Jul 2 2012 12:00AM |
| Airframe hours since last inspection | 32 |
| Airframe Hours | 8545 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | N8546 PAPA LLC |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | TECUMSEH |
| Aircraft Owner State | KS |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 66542-9805 |
| Operator is an individual? | No |
| Operator Name | David F. Osborne |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Berryton |
| Operator State | KS |
| Operator Country | USA |
| Operator Zip code | 66409 |
| 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) | Business |
| Second Pilot on Board | Yes |
| Departure Point Same as Event | No |
| Departure Airport Code | KMHE |
| Departure City | Mitchell |
| Departure State | SD |
| Departure Country | USA |
| Departure Time | 2030 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | KTOP |
| Destination City | Topeka |
| Destination State | KS |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Jan 16 2013 11:22AM |
| User who most recently changed record | johb |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |