# NTSB WPR10CA181: Morrison Joseph Q2, N142BP, Frazier Park, CA, March 26, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: March 26, 2010, 15:50 local (22:50 UTC) - Place: Frazier Park, CA - Coordinates: 34.816944, -119.003608 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=34.8169&lon=-119.0036&mi=10 - Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping) - Defining event: [Enroute-cruise: Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed, report July 1, 2010 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 75587 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR10CA181 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/75587/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=75587 - Page: https://openairdocs.org/ntsb/WPR10CA181 ## Probable cause A partial loss of engine power likely due to the failure of the oil pump. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Eng oil sys (airframe furnish): pressure](https://openairdocs.org/ntsb-findings/01057931): Aircraft › Aircraft power plant · Malfunction (probable cause); cases with it: [Morrison Joseph Q2, 1 case](https://openairdocs.org/ntsb-findings/01057931/cases.md?model=05645F7), [All aircraft, 6 cases](https://openairdocs.org/ntsb-findings/01057931/cases.md) - [Terrain: rough terrain](https://openairdocs.org/ntsb-findings/03021015): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Morrison Joseph Q2, 1 case](https://openairdocs.org/ntsb-findings/03021015/cases.md?model=05645F7), [All aircraft, 442 cases](https://openairdocs.org/ntsb-findings/03021015/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Enroute-cruise: Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342) (defining event); cases with it: [Morrison Joseph Q2, 1 case](https://openairdocs.org/ntsb-events/342/sequence.md?model=05645F7), [All aircraft, 1,858 cases](https://openairdocs.org/ntsb-events/342/sequence.md) - [Emergency descent: Off-field or emergency landing](https://openairdocs.org/ntsb-events/440); cases with it: [Morrison Joseph Q2, 1 case](https://openairdocs.org/ntsb-events/440/sequence.md?model=05645F7), [All aircraft, 3,365 cases](https://openairdocs.org/ntsb-events/440/sequence.md) - [Landing-landing roll: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Morrison Joseph Q2, 1 case](https://openairdocs.org/ntsb-events/470/sequence.md?model=05645F7), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot was cruising at 8,200 feet mean sea level in his experimental category airplane when he heard a sudden change of sound from the engine and noticed that his oil pressure dropped to zero. He executed an emergency landing on a paved county road. The landing gear wheels of the airplane were located on the tips of the lower wings, 16.4 feet apart. During the landing roll the right wing tip landing gear hit soft dirt and gravel, and the airplane spun to the right. Upon examination of the airplane the pilot stated that his engine oil level was full and there was no indication of an oil leak. He suspected that the oil pump failed on the experimental category engine. ## Factual narrative The pilot was cruising at 8,200 feet mean sea level (msl) in his experimental category airplane, when he heard a sudden change of sound from the engine and noticed his oil pressure drop to zero. He executed an emergency landing on a paved county road. The landing gear wheels of the airplane were located on the tips of the lower wings, 16.4 feet apart. During the landing roll the right wing tip landing gear hit soft dirt and gravel, and the airplane spun to the right. Upon examination of the airplane the pilot stated that his engine oil level was full and there was no indication of an oil leak. He suspected that the oil pump failed on the experimental category engine. ## Aircraft - Registration: [N142BP](https://openairdocs.org/deregistered/N142BP-2015-05-04), registration cancelled 2015-05-04, S/N 2609, built 1995 (OpenAirDocs) - Reported make and model: MORRISON JOSEPH Q2 - Registry model: [Morrison Joseph Q2](https://openairdocs.org/model/morrison-joseph-q2) (registry code 05645F7) (OpenAirDocs) - Registry engine: [Revmaster 2100](https://openairdocs.org/engine/revmaster-2100) (registry code 52550, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 2609 - Airframe hours: 305 - Engines: REVMASTER 2100 80 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: Van Vleet Richard A - Registered owner: Van Vleet Richard A - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, April 11, 2009 - Departed: KMHV, Mojave, CA - Destination: KOXR, Oxnard, CA - Airport: KMHV, Mojave Airport ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 68; injuries: none; private; airplane ratings: single-engine land; medical: class 2; last flight review April 1, 2009; seat: left; flight hours: 1,092 total, 200 in this make and model ## Weather - Conditions: Visual (VMC), Day - Wind: 290° at 17 knots, gusting 24 - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 64 °F, dew point 27 °F - Altimeter: 30.09 inHg - Observed at: KWJF, 50 nm away ## Docket (1 files) The files NTSB released with the investigation on April 8, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=75587. 543 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 543 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40328177&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.