# NTSB WPR20LA309: Bird CK, N933V, Enterprise, OR, September 11, 2020 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Limited · Final report - Date: September 10, 2020, 19:00 local (Sep 11, 2020, 02:00 UTC) - Place: Enterprise, OR - Coordinates: 45.424999, -117.26499 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=45.4250&lon=-117.2650&mi=10 - Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping) - Defining event: [Approach-VFR go-around: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490) - Highest injury: No injuries - Injuries: 2 uninjured - Status: Completed - Report: Approved by Office Director - Investigation class: Class 4 - Basic report with no Prelim publish - NTSB office: Western Pacific Region - NTSB case key (mKey): 101984 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR20LA309 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/101984/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=101984 - Page: https://openairdocs.org/ntsb/WPR20LA309 ## Probable cause The pilot’s failure to maintain directional control during landing, which resulted in a runway excursion and collision with terrain. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Bird CK, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=6840112), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Bird CK, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=6840112), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) - [Engine controls](https://openairdocs.org/ntsb-findings/01057600): Aircraft › Aircraft power plant · Incorrect use/operation (probable cause); cases with it: [Bird CK, 1 case](https://openairdocs.org/ntsb-findings/01057600/cases.md?model=6840112), [All aircraft, 51 cases](https://openairdocs.org/ntsb-findings/01057600/cases.md) - [Terrain: rough terrain](https://openairdocs.org/ntsb-findings/03021015): Environmental issues › Physical environment · Contributed to outcome; cases with it: [Bird CK, 1 case](https://openairdocs.org/ntsb-findings/03021015/cases.md?model=6840112), [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. - [Approach-VFR go-around: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490) (defining event); cases with it: [Bird CK, 1 case](https://openairdocs.org/ntsb-events/490/sequence.md?model=6840112), [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) ## Analysis The pilot reported that, before landing, the throttle was increased to maintain altitude to correct his position over the runway, however, the engine sputtered and the airplane lost altitude and the main landing gear touched the runway. Being angled on the runway, the pilot applied full power to go-around and change direction away from hangars. The pilot expected to climb; however, the airplane would not maintain altitude or climb. The engine was running, but it would not develop enough power to get positive response on the flight controls. The pilot subsequently landed in a field to the right side of the runway. The landing gear collapsed, and both the upper and lower wings were substantially damaged. While securing the airplane, the pilot reported that the carburetor heat was in the on position during the landing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N933V](https://openairdocs.org/aircraft/N933V), registered now, S/N 4018, built 1931 (OpenAirDocs) - Reported make and model: BIRD CK - Registry model: [Bird CK](https://openairdocs.org/model/bird-ck) (registry code 6840112) (OpenAirDocs) - Registry engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: 4018 - Year built: 1931 - Engines: Continental W-670-6A-3 220 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Registered owner: Stangel Richard C - Airworthiness certificate: Standard, Normal - Last inspection: Condition, September 15, 2019, 23.6 hours before - Destination: Same as departure - Airport: 8S4, Enterprise Municipal Airport, runway 30, 2,850 × 50 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 61; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review August 15, 2020; seat: rear; restraint: 3-point; flight hours: 868 total, 43 in this make and model, 682 as pilot in command, 39 in the last 90 days, 12 in the last 30 days, 1 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: calm - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 78 °F - Altimeter: 30.06 inHg - Observed at: -1 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 20200910014359A](https://openairdocs.org/incident/20200910014359A), Sep 10, 2020: Bird CK, Enterprise, OR, Substantial damage. Pilot added power to straighten out the aircraft due to not being aligned with the center line of the runway. Adding power caused the engine to sputter and… ## Docket (2 files) The files NTSB released with the investigation on August 20, 2021, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=101984. 5.3 MB in all. - Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 5.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12554468&FileExtension=pdf&FileName=6120%20(004)_Redacted-Rel.pdf - Photos (courtesy of owner) (item 2, PDF, 4 pages, 254 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12554553&FileExtension=pdf&FileName=Owner%27s%20Photo%20Array-Rel.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.