Individually Owned: 150,657
Corporate Owned: 137,281
Aircraft Accident/Incident Report
Henry's Lake, Idaho 83433
Monday, July 21, 2003 12:45 MDT
NTSB Narrative Summary Released at Completion of Accident
The pilot reported that about five minutes after takeoff, the oil low pressure light illuminated and shortly thereafter he heard a knocking sound coming from the engine. The pilot shut the engine down and attempted to return to the airport of departure. Unable to make it to the airport, a power-off landing was made to a rough open field about one mile from the runway. Although the touchdown was uneventful, during the landing roll, the aircraft encountered a ditch, which resulted in the separation of the nose gear and substantial damage to the aircraft structure. On site inspection of the aircraft indicated that oil residue was noted at the aft end of the engine around the accessory section. After the tail was lowered, a noticeable oil leak was noted around the vacuum pump flange (approximately 6 drops per minute). Further inspection of the engine found that the pneumatic pump gasket had failed and was blown out the top between the mating surfaces of the pump and the mounting pad. All four mounting nuts of the pump were found only slightly more than finger tight and were removed with no resistance. The internal star locking washers were in place under the nuts and had been crushed indicating proper torque at one time. Standard torque on these nuts is 90" pounds.
NTSB Probable Cause Narrative
A set of inadequately torqued vacuum pump retaining nuts, leading to the failure of the vacuum pump gasket, resulting in oil exhaustion, which resulted in a loss of engine power during cruise. A ditch and rough uneven terrain were factors.
Event Information
| Type of Event | Accident |
| Event Date | 7/21/2003 |
| Event Day of the Week | Monday |
| Time of Event | 1245 |
| Event Time Zone | Mountain Daylight Time |
| Event City | Henry's Lake |
| Event State | IDAHO |
| Event Country | -- |
| Zipcode of the event site | 83433 |
| Event Date Year | 2003 |
| Event Date Month | 7 |
| MidAir Collision Indicator | No |
| On Ground Collision occurred ? | No |
| Event Location Latitude | 443855N |
| Event Location Longitude | 1112129W |
| 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 | Unknown |
| Investigator's weather source | Pilot |
| Time of the weather observation | |
| Direction of event from weather observation facility (degrees) | -- |
| Weather Observation Facility ID | -- |
| Elevation of weather observation facility | -- |
| Distance of event from weather observation facility (units?) | -- |
| Time Zone of the weather observation | -- |
| 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) | 32 |
| Dew Point at event time (in degress fahrenheit) | -- |
| Wind Direction (degrees magnetic) | 210 |
| Variable Wind Indicator | Wind direction could be determined |
| Wind Speed (knots) | -- |
| Wind Velocity Indicator | -- |
| Wind Gust Indicator | Unknown |
| Wind Gust (knots) | -- |
| Altimeter Setting at event time (in. Hg) | -- |
| 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 | 5 |
| Injury Total Serious | -- |
| Injury Total All | -- |
| Investigating Agency | NTSB |
| NTSB Docket Number (internal use) | 15583 |
| NTSB Notification Source | FAA Operations Center |
| NTSB Notification Date | Jul 21 2003 12:00AM |
| NTSB Notification Time | 1135 |
| Fiche Number and/or location -used to find docket information | DMS |
| Date of most recent change to record | Jun 3 2004 1:28PM |
| User who most recently changed record | NTSB\MONR |
| Basic weather conditions | Visual Meteorological Cond |
| FAA District Office | Salt Lake FSDO |
Aircraft Involved |
|
|---|---|
Aircraft #1 |
|
| Aircraft Registration Number | N146NE |
| NTSB Number | SEA03LA146 |
| 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 | Cessna |
| Aircraft Model | 182S |
| Aircraft Series Identifier | -- |
| Aircraft Serial Number | 18280221 |
| Certified Max Gross Weight | 3100 |
| 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 | Fixed |
| Aircraft, Type of Last Inspection | Annual |
| Date of Last Inspection | Jul 1 2002 12:00AM |
| Airframe hours since last inspection | 207 |
| Airframe Hours | 880 |
| ELT Installed | Yes |
| ELT Activated | Yes |
| ELT Aided Location of Event Site | No |
| ELT Type | -- |
| Aircraft Owner Name | Idaho Rail Shop Inc. |
| Aircraft Owner Street Address | 1785 Craft Rd |
| Aircraft Owner City | Pocatello |
| Aircraft Owner State | ID |
| Aircraft Owner Country | USA |
| Aircraft Owner Zipcode | 83204 |
| Operator is an individual? | No |
| Operator Name | Michael L. Bartu |
| Operator Same as Owner? | No |
| Operator Is Doing Business As | -- |
| Operator Address Same as Owner? | No |
| Operator Street Address | -- |
| Operator City | Pocatello |
| Operator State | ID |
| Operator Country | USA |
| Operator Zip code | 82301 |
| 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 | U53 |
| Departure City | Henry's Lake |
| Departure State | ID |
| Departure Country | USA |
| Departure Time | 1228 |
| Departure Time Zone | MDT |
| Destination Same as Local Flt | -- |
| Destination Airport Code | PIH |
| Destination City | Pocatello |
| Destination State | ID |
| Destination Country | USA |
| Specific Phase of Flight | Cruise |
| Report sent to ICAO? | No |
| Evacuation occurred | No |
| Date of most recent change to record | Apr 5 2004 3:28PM |
| User who most recently changed record | STAM |
| Since inspection or accident | Time of Accident |
| Event Location Runway Number and Location | NA |
| Runway Length | -- |
| Runway Width | -- |
| Sight Seeing flight | No |
| Air Medical Flight | No |
| Medical Flight | -- |