# NTSB WPR10CA206: Cessna 150L, N6928G, Princeville, OR, April 15, 2010 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: April 15, 2010, 08:30 local (15:30 UTC) - Place: Princeville, OR - Coordinates: 44.286945, -120.903892 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=44.2869&lon=-120.9039&mi=10 - Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping) - Defining event: [Standing-engine(s) start-up: Miscellaneous/other](https://openairdocs.org/ntsb-events/900) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report July 22, 2010 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration FSDO - NTSB case key (mKey): 75765 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR10CA206 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/75765/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=75765 - Page: https://openairdocs.org/ntsb/WPR10CA206 ## Probable cause The pilot’s failure to ensure that the parking brake was set prior to hand-starting the engine. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Landing gear system: brake](https://openairdocs.org/ntsb-findings/01023242): Aircraft › Aircraft systems · Incorrect use/operation (probable cause); cases with it: [Cessna 150L, 1 case](https://openairdocs.org/ntsb-findings/01023242/cases.md?model=2071826), [All aircraft, 297 cases](https://openairdocs.org/ntsb-findings/01023242/cases.md) - [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Cessna 150L, 7 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=2071826), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Standing-engine(s) start-up: Miscellaneous/other](https://openairdocs.org/ntsb-events/900) (defining event); cases with it: [Cessna 150L, 7 cases](https://openairdocs.org/ntsb-events/900/sequence.md?model=2071826), [All aircraft, 1,556 cases](https://openairdocs.org/ntsb-events/900/sequence.md) ## Analysis After preflight, the pilot set the parking brake, primed the engine, and got out to hand-start the engine with the propeller. No one was on board to help hold the brakes. He turned the propeller, and the engine started. He entered the cabin, and placed his feet on the rudder pedals. The engine stopped, so he exited the airplane and hand-propped it again. The engine started and air from the propeller blew the entry door shut. The airplane started to move forward and he was not able to reenter the airplane to apply the brakes. The left wing collided with a hangar about 100 feet away, which spun the nose into the hangar. The left wing was pushed back into the fuselage, and both sustained substantial damage. The pilot said that he did not recheck the parking brake after placing his feet on the controls, and thought that the accident might have been prevented if he had gone back to step one of his hand-start checklist. ## Factual narrative After preflight, the pilot set the parking brake, primed the engine, and got out to hand-start the engine with the propeller. No one was on board to help hold the brakes. He turned the propeller, and the engine started. He entered the cabin, and placed his feet on the rudder pedals. The engine stopped, so he exited the airplane and hand-propped it again. The engine started and air from the propeller blew the entry door shut. The airplane started to move forward and he was not able to reenter the airplane to apply the brakes. The left wing collided with a hangar about 100 feet away, which spun the nose into the hangar. The left wing was pushed back into the fuselage, and both sustained substantial damage. The pilot said that he did not recheck the parking brake after placing his feet on the controls, and thought that the accident might have been prevented if he had gone back to step one of his hand-start checklist. ## Aircraft - Registration: [N6928G](https://openairdocs.org/deregistered/N6928G-2017-02-28), registration cancelled 2017-02-28, S/N 15072428, built 1970 (OpenAirDocs) - Reported make and model: CESSNA 150L - Registry model: [Cessna 150L](https://openairdocs.org/model/cessna-150l) (registry code 2071826) (OpenAirDocs) - Registry engine: [Continental 0-200 series](https://openairdocs.org/engine/continental-0-200-series) (registry code 17020, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 15072428 - Airframe hours: 5523 - Engines: Teledyne Continental Motors O-200A 100 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: David L Dow - Registered owner: David L Dow - Airworthiness certificate: Standard, Utility - Last inspection: Annual, July 1, 2009, 5 hours before - Departed: S39, Princeville, OR - Destination: S39, Princeville, OR - Airport: S39, Prineville ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 66; injuries: minor; private; airplane ratings: single-engine land; medical: class 3, without waivers/limitations; last flight review April 30, 2008; flight hours: 282 total, 282 in this make and model, 218 as pilot in command, 1 in the last 90 days, 1 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 240° at 11 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 41 °F, dew point 37 °F - Altimeter: 30.11 inHg - Observed at: KRDM, 11 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 20100415032599A](https://openairdocs.org/incident/20100415032599A), Apr 15, 2010: Cessna 150L, Prineville, OR, Substantial damage. Pilot in command (PIC) of N6928G untied aircraft after preflight then primed the aircraft, set the throttle at 1/4", set the brake and went to handprop the… ## Docket (1 files) The files NTSB released with the investigation on June 18, 2010, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=75765. 614 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 614 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40331023&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.