Individually Owned: 150,657
Corporate Owned: 137,281
Kingdon Airpark Airport
Aircraft Accident/Incident Report
Lodi, California 95242
Friday, December 27, 2013 10:55 PST
NTSB Narrative Summary Released at Completion of Accident
HISTORY OF FLIGHT
On December 27, 2013, about 1055 Pacific standard time, a Stinson 108-1 airplane, N8848K, experienced a loss of engine power, and the pilot made a forced landing in an open field near Lodi, California. The owner/pilot operated the airplane under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. The pilot and one passenger were not injured. The airplane sustained substantial damage to its wings and fuselage when it struck a berm and nosed over during the landing roll out. The airplane had departed from the Kingdon Airpark (O20), Lodi, about 1030, and was destined for the Modesto City-County Airport-Harry Sham Field (MOD), Modesto, California. Visual meteorological conditions prevailed for the local area flight, and no flight plan had been filed.
According to a responding deputy from the San Joaquin Sheriff's Department, the pilot reported that shortly after takeoff the engine started to sputter. He turned back to the departure airport, and attempted to restart the engine. After switching fuel tanks, the engine regained full power, then quit completely. The pilot made a forced landing to an open field, which appeared to be free of obstructions. However, during the landing rollout, the airplane struck a berm and nosed over coming to rest inverted.
According to a Federal Aviation Administration (FAA) inspector, who responded to the accident site, the airplane traveled about 400 yards before impacting the ditch. The FAA inspector reported that the pilot had just put in new shoulder harness type seatbelts in the airplane.
The engine was examined at Plain Parts, Pleasant Grove, California, on January 10, 2014. A visual examination revealed that the right side of the engine crankcase near the accessory section had separated. The spark plugs, rocker box covers, and the top of the engine case were removed. The propeller was manually manipulated back and forth; however, full rotation could not be achieved due to damage to the crankshaft, but visible movement of the crankshaft was noted at the rear of the engine. Investigators reported that the crankshaft and cam shaft near the accessory section had broken, and several bearings had been damaged. The crankshaft with a portion of the number one connecting rod, crankshaft main journal bearing, crankshaft connecting rod journal bearing, and a camshaft were shipped to the National Transportation Safety Board (NTSB) metallurgical laboratory in Washington, DC, for further examination.
TEST AND RESEARCH
The NTSB metallurgical laboratory specialist documented the submitted components; the crankshaft was received in two fractured pieces. The fracture occurred through the web between the numbers one and two connecting rod journals. The fracture face was relatively flat with a thumbnail-shaped pattern, which was consistent with fatigue. The fatigue crack initiated at the crankshaft surface, with the primary fatigue crack propagating through 79 percent of the web cross-section. A second fatigue crack had propagated from the opposite side of the fractured crankshaft web and comprised about 5 percent of the web fracture surface. The remaining fracture surface had features consistent with overstress. The specialists reported that the primary fatigue crack propagated from the surface of the crankshaft near the edge of a darkened area on the number two connecting rod journal. According to the specialist, the fracture features of the camshaft were consistent with overstress. The specialists' report is attached to the public docket for this accident.
Maintenance records indicated that during the last annual inspection dated March 12, 2013, the engine had accumulated about 250 hours since the major overhaul.
NTSB Probable Cause Narrative
Not Yet Reported
Event Information
| Type of Event | Accident |
| Event Date | 12/27/2013 |
| Event Day of the Week | Friday |
| Time of Event | 1055 |
| Event Time Zone | Pacific Standard Time |
| Event City | Lodi |
| Event State | CALIFORNIA |
| Event Country | -- |
| Zipcode of the event site | 95242 |
| Event Date Year | 2013 |
| Event Date Month | 12 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 380856N |
| Event Location Longitude | 1210447W |
| Event Location Airport | KINGDON AIRPARK |
| Event Location Nearest Airport ID | O20 |
| Indicates whether the acc/inc occurred off or on an airport | Off Airport/Airstrip |
| Distance from airport in statute miles | 14 |
| Degrees magnetic from airport | 75 |
| Airport Elevation | 15 |
| Weather Briefing Completeness | -- |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1855 Coordinated Universal Time? Same as GMT |
| Direction of event from weather observation facility (degrees) | 150 |
| Weather Observation Facility ID | SKC |
| Elevation of weather observation facility | 33 |
| Distance of event from weather observation facility (units?) | 14 |
| Time Zone of the weather observation | UTC |
| 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) | 4 |
| Air Temperature at event time (in degrees celsius) | 9 |
| Dew Point at event time (in degress fahrenheit) | 4 |
| Wind Direction (degrees magnetic) | -- |
| Variable Wind Indicator | -- |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | Calm |
| Wind Gust Indicator | -- |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 30.25 |
| Density Altitude (feet) | -- |
| Intensity of Precipitation | -- |
| METAR weather report | METAR KSCK 271855Z 00000KT 4SM HZ CLR 09/04 A3025 |
| 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 | 2 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | -- |
| NTSB Notification Source | FAA AWP Regional Operations Ce |
| NTSB Notification Date | -- |
| NTSB Notification Time | -- |
| Fiche Number and/or location -used to find docket information | -- |
| Date of most recent change to record | Nov 18 2014 1:51PM |
| User who most recently changed record | eckd |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | -- |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N8848K |
| NTSB Number | WPR14LA079 |
| 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 | STINSON |
| Aircraft Model | 108 1 |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 108-1848 |
| Certified Max Gross Weight | 2150 |
| Aircraft Category | Airplane |
| Aircraft Registration Class | -- |
| Aircraft is a homebuilt? | No |
| Flight Crew Seats | 1 |
| Cabin Crew Seats | -- |
| Passenger Seats | 1 |
| 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 | Mar 12 2013 12:00AM |
| Airframe hours since last inspection | -- |
| Airframe Hours | 2280.3 |
| ELT Installed | Yes |
| ELT Activated | No |
| ELT Aided Location of Event Site | Unknown |
| ELT Type | Unknown |
| Aircraft Owner Name | BRYANT FLOYD H |
| Aircraft Owner Street Address | -- |
| Aircraft Owner City | MODESTO |
| Aircraft Owner State | CA |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 953570306 |
| Operator is an individual? | Yes |
| Operator Name | BRYANT FLOYD H |
| Operator Same as Owner? | Yes |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | Yes |
| Operator Street Address | -- |
| Operator City | MODESTO |
| Operator State | CA |
| Operator Country | USA |
| Operator Zip code | 953570306 |
| 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 | O20 |
| Departure City | Lodi |
| Departure State | CA |
| Departure Country | USA |
| Departure Time | 1030 |
| Departure Time Zone | PST |
| Destination Same as Local Flt | -- |
| Destination Airport Code | MOD |
| Destination City | MODESTO |
| Destination State | CA |
| Destination Country | USA |
| Specific Phase of Flight | -- |
| Report sent to ICAO? | -- |
| Evacuation occurred | -- |
| Date of most recent change to record | Nov 18 2014 1:51PM |
| User who most recently changed record | eckd |
| Since inspection or accident | Last Inspection |
| Event Location Runway Number and Location | N/A |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |