# NTSB GAA18CA223: Ken Olson Scamp, N964TA, Raymond, WA, April 22, 2018 - Type: NTSB accident investigation - Classification: Accident · No injuries · Data collection · Final report - Date: April 22, 2018, 09:00 local (16:00 UTC) - Place: Raymond, WA - Coordinates: 46.697498, -123.823059 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=46.6975&lon=-123.8231&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241) - Highest injury: No injuries - Injuries: 1 uninjured - Status: Completed, report August 27, 2018 - Report: Approved by Office Director - NTSB office: General Aviation Accidents - Parties: FAA - NTSB case key (mKey): 97084 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=GAA18CA223 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/97084/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=97084 - Page: https://openairdocs.org/ntsb/GAA18CA223 ## Probable cause The pilot's failure to maintain a proper landing flare, which resulted in an aerodynamic stall, bounced landing, and subsequent secondary stall during a go-around attempt. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Performance/control parameters: landing flare](https://openairdocs.org/ntsb-findings/01062041): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Ken Olson SCAMP, 1 case](https://openairdocs.org/ntsb-findings/01062041/cases.md?model=05636QF), [All aircraft, 1,285 cases](https://openairdocs.org/ntsb-findings/01062041/cases.md) - [Performance/control parameters: angle of attack](https://openairdocs.org/ntsb-findings/01062042): Aircraft › Aircraft oper/perf/capability · Capability exceeded (probable cause); cases with it: [Ken Olson SCAMP, 1 case](https://openairdocs.org/ntsb-findings/01062042/cases.md?model=05636QF), [All aircraft, 990 cases](https://openairdocs.org/ntsb-findings/01062042/cases.md) - [Performance/control parameters: directional control](https://openairdocs.org/ntsb-findings/01062020): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Ken Olson SCAMP, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=05636QF), [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: [Ken Olson SCAMP, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05636QF), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md) ## Sequence of events The events NTSB coded, in order, by phase of flight. The defining event best describes what happened. - [Landing-flare/touchdown: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241) (defining event); cases with it: [Ken Olson SCAMP, 1 case](https://openairdocs.org/ntsb-events/241/sequence.md?model=05636QF), [All aircraft, 1,529 cases](https://openairdocs.org/ntsb-events/241/sequence.md) - [Landing: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [Ken Olson SCAMP, 1 case](https://openairdocs.org/ntsb-events/090/sequence.md?model=05636QF), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md) - [Landing: Loss of control on ground](https://openairdocs.org/ntsb-events/230); cases with it: [Ken Olson SCAMP, 1 case](https://openairdocs.org/ntsb-events/230/sequence.md?model=05636QF), [All aircraft, 4,585 cases](https://openairdocs.org/ntsb-events/230/sequence.md) - [Landing: Runway excursion](https://openairdocs.org/ntsb-events/300); cases with it: [Ken Olson SCAMP, 1 case](https://openairdocs.org/ntsb-events/300/sequence.md?model=05636QF), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md) - [Approach-VFR go-around: Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241); cases with it: [Ken Olson SCAMP, 1 case](https://openairdocs.org/ntsb-events/241/sequence.md?model=05636QF), [All aircraft, 1,529 cases](https://openairdocs.org/ntsb-events/241/sequence.md) - [Approach-VFR go-around: Collision during takeoff/land](https://openairdocs.org/ntsb-events/490); cases with it: [Ken Olson SCAMP, 1 case](https://openairdocs.org/ntsb-events/490/sequence.md?model=05636QF), [All aircraft, 1,309 cases](https://openairdocs.org/ntsb-events/490/sequence.md) ## Analysis The pilot reported that, during the approach to land, as he reduced power the descent rate increased and he flared to reduce the descent rate. He added that the flare was high, and the airplane aerodynamically stalled about 6 ft. above the runway and bounced. When the airplane bounced, the airplane veered to the left and he applied power to go-around. During the go-around, as the airplane approached obstacles off the runway, he "pulled up too much," and the airplane aerodynamically stalled and impacted the ground. The airplane sustained substantial damage to the fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Factual narrative The pilot reported that, during the approach to land, as he reduced power the decent rate increased and he flared to reduce the descent rate. He added, that the flare was high, and the airplane aerodynamically stalled about 6 ft. above the runway and bounced. When the airplane bounced, the airplane veered to the left and he applied power to go-around. During the go-around, as the airplane approached obstacles off the runway, he "pulled up too much", and the airplane aerodynamically stalled and impacted the ground. The airplane sustained substantial damage to the fuselage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N964TA](https://openairdocs.org/aircraft/N964TA), registered now, S/N 001, built 2017 (OpenAirDocs) - Reported make and model: KEN OLSON SCAMP (NO SERIES) - Registry model: [Ken Olson SCAMP](https://openairdocs.org/model/ken-olson-scamp) (registry code 05636QF) (OpenAirDocs) - Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 001 - Year built: 2018 - Airframe hours: 2 - Engines: Ken Olson 1 100 horsepower reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Condition, February 10, 2018 - Departed: 2S9, Raymond, WA - Destination: 2S9, Raymond, WA - Airport: 2S9, Willapa Harbor, runway 29, 3,005 × 52 ft, asphalt - Equipment: Handheld GPS, ADS-B, Electronic multifunction display, Electronic primary flight display ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 63; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; last flight review October 4, 2017; seat: front; flight hours: 138.8 total, 2 in this make and model, 91.9 as pilot in command, 2 in the last 90 days, 2 in the last 30 days, 0.8 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 110° at 3 knots - Visibility: 8 statute miles - Lowest ceiling: none - Temperature: 45 °F, dew point 41 °F - Altimeter: 30.40 inHg - Observed at: KHQM, 17 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 20180422003969A](https://openairdocs.org/incident/20180422003969A), Apr 22, 2018: Ken Olson SCAMP, Raymond, WA, Substantial damage. During the landing sequence at Willapa Harbor Airport (2S9) the pilot flared to high. The plane then stalled and bounced. The pilot then attempted a go-around… ## Docket (2 files) The files NTSB released with the investigation on June 13, 2018, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=97084. 1.4 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 868 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40463999&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Accident Picture (Courtesy of FAA) (item 2, .PDF, 1 photo, 580 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40464000&FileExtension=.PDF&FileName=Accident%20Picture%20(Courtesy%20of%20FAA)-Master.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.