Individually Owned: 150,657
Corporate Owned: 137,281
Okmulgee Municipal Airport
Aircraft Accident/Incident Report
Okmulgee, Oklahoma 74447
Thursday, June 14, 2001 13:15 CDT
NTSB Narrative Summary Released at Completion of Accident
The flight had been airborne for three hours when the pilot heard a "loud bang" and the engine lost total power. He executed a forced landing to a field, during which the airplane contacted dirt mounds that were 4 feet high, before it came to a stop upright. Postaccident examination of the airplane revealed that fresh engine oil was adhering to the left side of the fuselage from the engine cowling extending back to the empennage. The oil dipstick was removed and indicated only 2 quarts (8 quart capacity). The oil was black and smelled as though it had been exposed to heat. The engine crankcase displayed a 2.5-inch diameter hole between the #5 and #6 cylinders. The engine was disassembled and it was noted that the connecting rod for the #6 cylinder had separated from its piston and the crankshaft. The #6 connecting rod journal displayed evidence of thermal damage and metal transfer. Metallurgical examination of the #6 connecting rod end cap and bolt revealed fractures indicative of overstress at extreme temperatures. Additionally, the rod end cap bearing surface displayed fretting and metal transfer. No other anomalies with the engine were noted.
NTSB Probable Cause Narrative
the failure of the #6 cylinder's connecting rod, which resulted in a complete loss of engine power. A contributing factor to the accident was the lack of suitable terrain for the forced landing.
Event Information
| Type of Event | Accident |
| Event Date | 6/14/2001 |
| Event Day of the Week | Thursday |
| Time of Event | 1315 |
| Event Time Zone | Central Daylight Time |
| Event City | Okmulgee |
| Event State | OKLAHOMA |
| Event Country | -- |
| Zipcode of the event site | 74447 |
| Event Date Year | 2001 |
| Event Date Month | 6 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | -- |
| Event Location Longitude | -- |
| Event Location Airport | Okmulgee Municipal Airport |
| Event Location Nearest Airport ID | OKM |
| 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 | 720 |
| Weather Briefing Completeness | Unknown |
| Investigator's weather source | Weather Observation Facility |
| Time of the weather observation | 1253 Central Daylight Time |
| Direction of event from weather observation facility (degrees) | 360 |
| Weather Observation Facility ID | TUL |
| Elevation of weather observation facility | 677 |
| Distance of event from weather observation facility (units?) | 30 |
| Time Zone of the weather observation | CDT |
| Lighting Conditions | Day |
| Lowest Ceiling Height | 3400 |
| Lowest Non-Ceiling Height | 3400 |
| Sky/Lowest/Cloud Conditions | Thin Broken |
| Sky Condition for Lowest Ceiling | Broken |
| Visibility Runway Visual Range (Feet) | -- |
| Visibility Runway Visual Value (Statute Miles) | -- |
| Visibility (Statute Miles) | 9 |
| Air Temperature at event time (in degrees celsius) | 29 |
| Dew Point at event time (in degress fahrenheit) | 23 |
| Wind Direction (degrees magnetic) | 190 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | 16 |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Not Gusting |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | 29.74 |
| Density Altitude (feet) | 2754 |
| Intensity of Precipitation | -- |
| METAR weather report | KTUL METAR 141753Z 190016KT 9SM BKN034 OVC043 29/2 |
| 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) | 11922 |
| NTSB Notification Source | RCC |
| NTSB Notification Date | Jun 14 2001 12:00AM |
| NTSB Notification Time | 1804 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jul 1 2002 11:26AM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Oklahoma City, Oklahoma |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N114BW |
| NTSB Number | FTW01LA143 |
| Missing Aircraft Indicator | -- |
| Federal Aviation Reg. Part | Part 91: General Aviation |
| Type of Flight Plan filed | IFR |
| Flight plan Was Activated? | Yes |
| Damage | Substantial |
| Aircraft Fire | None |
| Aircraft Explosion | None |
| Aircraft Manufacturer's Full Name | Commander |
| Aircraft Model | 114-B |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 14541 |
| 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 | 4 |
| Number of Engines | 1 |
| Fixed gear or retractable gear | Retractable |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | May 5 2001 12:00AM |
| Airframe hours since last inspection | 105 |
| Airframe Hours | 1743.4 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Robert T. Williams |
| Aircraft Owner Street Address | 1558 Canterbury Dr |
| Aircraft Owner City | Murray |
| Aircraft Owner State | KY |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 42076 |
| Operator is an individual? | No |
| Operator Name | Gary A. Gallo |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | 505 N 18th Street |
| Operator City | Mayfield |
| Operator State | KY |
| Operator Country | USA |
| Operator Zip code | 42066 |
| 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 | CEY |
| Departure City | Murray |
| Departure State | KY |
| Departure Country | USA |
| Departure Time | 1000 |
| Departure Time Zone | CDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | PWA |
| Destination City | Oklahoma City |
| Destination State | OK |
| Destination Country | USA |
| Specific Phase of Flight | Cruise |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Jun 6 2002 2:42PM |
| User who most recently changed record | SNYG |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | -- |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |