# NTSB WPR10CA337: Cessna 150M, N3143V, Neola, UT, July 3, 2010 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Data collection · Final report - Date: July 3, 2010, 13:15 local (19:15 UTC) - Place: Neola, UT - Coordinates: 40.426666, -110.024444 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=40.4267&lon=-110.0244&mi=10 - Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping) - Defining event: [Maneuvering-low-alt flying: Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342) - Highest injury: Minor injuries - Injuries: 1 minor - Status: Completed, report December 20, 2010 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 76554 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR10CA337 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/76554/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=76554 - Page: https://openairdocs.org/ntsb/WPR10CA337 ## Probable cause A partial loss of engine power for undetermined reasons and the pilot's failure to maintain clearance from a power line. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Attention/monitoring: monitoring environment](https://openairdocs.org/ntsb-findings/02021545): Personnel issues › Psychological · Pilot (probable cause); cases with it: [Cessna 150M, 2 cases](https://openairdocs.org/ntsb-findings/02021545/cases.md?model=2071830), [All aircraft, 809 cases](https://openairdocs.org/ntsb-findings/02021545/cases.md) - [Object/animal/substance: wire](https://openairdocs.org/ntsb-findings/03022032): Environmental issues › Physical environment · Response/compensation (probable cause); cases with it: [Cessna 150M, 2 cases](https://openairdocs.org/ntsb-findings/03022032/cases.md?model=2071830), [All aircraft, 588 cases](https://openairdocs.org/ntsb-findings/03022032/cases.md) - [Not determined](https://openairdocs.org/ntsb-findings/05000000): Not determined › Not determined · Unknown/Not determined (probable cause); cases with it: [Cessna 150M, 8 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=2071830), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Maneuvering-low-alt flying: Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342) (defining event); cases with it: [Cessna 150M, 14 cases](https://openairdocs.org/ntsb-events/342/sequence.md?model=2071830), [All aircraft, 1,858 cases](https://openairdocs.org/ntsb-events/342/sequence.md) - [Maneuvering: Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120); cases with it: [Cessna 150M, 4 cases](https://openairdocs.org/ntsb-events/120/sequence.md?model=2071830), [All aircraft, 1,074 cases](https://openairdocs.org/ntsb-events/120/sequence.md) - [Landing: Landing gear collapse](https://openairdocs.org/ntsb-events/094); cases with it: [Cessna 150M, 6 cases](https://openairdocs.org/ntsb-events/094/sequence.md?model=2071830), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) ## Analysis The pilot reported that while practicing ground reference maneuvers the airplane's engine had what he described as a temporary partial loss of power. The pilot was flying back to the airport when the nose landing gear struck a power line. The pilot continued the flight back to the airport. When he attempted to land, the nose landing gear collapsed aft, substantially damaging the firewall. While review of the carburetor icing probability chart revealed that the weather conditions during the flight--a temperature of 26 degrees Celsius and a dew point of 6 degrees Celsius--were conducive to light icing during glide and cruise power, the investigation was unable to determine a cause for the reported power loss. ## Factual narrative The pilot reported that while practicing ground reference maneuvers the airplane's engine had what he described as a temporary partial loss of power. The pilot was flying back to the airport when the nose landing gear struck a power line. The pilot continued the flight back to the airport. When he attempted to land, the nose landing gear collapsed aft, substantially damaging the firewall. While review of the carburetor icing probability chart revealed that the weather conditions during the flight--a temperature of 26 degrees Celsius and a dew point of 6 degrees Celsius--were conducive to light icing during glide and cruise power, the investigation was unable to determine a cause for the reported power loss. ## Aircraft - Registration: [N3143V](https://openairdocs.org/aircraft/N3143V), registered now, S/N 15076401, built 1974 (OpenAirDocs) - Reported make and model: CESSNA 150M - Registry model: [Cessna 150M](https://openairdocs.org/model/cessna-150m) (registry code 2071830) (OpenAirDocs) - Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 15076401 - Airframe hours: 5402 - Engines: Continental O-200 Series 100 horsepower reciprocating - Damage: Substantial damage - Fire: On-Ground - Flight: Personal, Part 91 - Operator: Smith Lynn - Registered owner: Smith Lynn - Airworthiness certificate: Standard, Normal - Last inspection: Annual, July 1, 2010 - Departed: 74V, Neola, UT - Destination: 74V, Neola, UT - Airport: 74V, Roosevelt Municipal Airport, runway 25, 6,500 × 75 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 44; injuries: minor; student; medical: class 3, with waivers/limitations; last flight review May 26, 2010; seat: left; flight hours: 94 total, 94 in this make and model, 6 in the last 90 days, 2 in the last 30 days, 0 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 180° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 79 °F, dew point 43 °F - Altimeter: 29.86 inHg - Observed at: KVEL, 27 nm away ## FAA reports on this event (1) The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs). - [Accident 20100703037559A](https://openairdocs.org/incident/20100703037559A), Jul 3, 2010: Cessna 150M, Roosevelt, UT, Substantial damage. On the morning of 07/03/2010 @ 0930 aircraft departed Roosevelt, UT (74V) for a local pleasure flight. Pilot reported that when he was about 3 miles se of… ## Docket (1 files) The files NTSB released with the investigation on August 16, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=76554. 305 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 305 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40334275&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.