Mooney M20K N1154L
22 August 1995 · Roundup, Montana, United States · No injuries
Summary
On 22 August 1995 at about 23:00 local time, a Mooney M20K registered N1154L was involved in an accident near Roundup, Montana, United States. 2 people were on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 23:00
- Classification
- Accident
- Location
- Roundup, Montana, United States
- Coordinates
- 46.4395, -108.5104
- Aircraft
- Mooney M20K
- Registration
- N1154L
- Category
- Airplane
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Personal
- Phase of flight
- Not recorded
- Route
- Aurora State → Bismarck
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- SEA95LA190
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 2 | 0 | 0 | 0 | 2 |
Probable cause
an engine failure due to foreign object ingestion into the oil pump. A ruptured oil inlet screen contributed to the accident.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The pilot reported that while cruising 28 miles north of Roundup, Montana, the engine surged momentarily, then returned to normal RPM. He then noted that the oil pressure had dropped to zero, and turned toward the Roundup airport for an emergency landing. He reported that the engine failed 3 minutes later and that he could not make the airport. He then made a forced landing in a field 9 miles north of Roundup. The airplane went through a barbed-wire fence during landing. A postaccident engine examination revealed a metal chip between the oil inlet screen and the oil pump inlet. The inlet screen was split open along the solder seam and the oil pump inlet was gouged. A scanning electron microscope examination of the chip revealed that the chip was copper-plated steel characteristic of material used in the engine gears and camshaft. Teledyne Continental also reported that the oil screen appeared to have been subjected to an axial compressive load at an undetermined time.
Quoted verbatim from the NTSB record.
Other Mooney M20K accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 13 Oct 1995 | Mooney M20K | Dalton, Georgia, United States | - | No injuries | - |
| 11 Apr 1995 | Mooney M20K | Tangier Island, Virginia, United States | - | Minor injuries | - |
| 21 Apr 1995 | Mooney M20K | Marshfield, Massachusetts, United States | William H. Eilberg | No injuries | - |
| 21 Apr 1996 | Mooney M20K | West Milford, New Jersey, United States | - | Serious injuries | - |
| 11 Feb 1994 | Mooney M20K | Applegate, Oregon, United States | Hicks, ROY H. | Fatal | 1 |
| 17 May 1994 | Mooney M20K | Swanton, Ohio, United States | - | Fatal | 2 |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 29 Jun 1995 | Mooney M20E | Ronan, Montana, United States | - | No injuries | - |
| 24 Jul 1995 | Air Tractor AT-301 | Havre, Montana, United States | - | No injuries | - |
| 1 Aug 1995 | Cessna 172C | Red Lodge, Montana, United States | - | No injuries | - |
| 7 Aug 1995 | Cessna TU206F | Ennis, Montana, United States | Iverson, Paul, E. | No injuries | - |
| 12 Aug 1995 | Taylorcraft BC12D | St. Mary, Montana, United States | Terning, Nate, A. | Serious injuries | - |
| 23 Aug 1995 | Hall KITFOX 1 | Pompeys Pillar, Montana, United States | - | No injuries | - |