# NTSB WPR09LA217: Goodacre CA4-HP, N33254, Mansfield, WA, April 26, 2009 - Type: NTSB accident investigation - Classification: Accident · Minor injuries · Limited investigation · Final report - Date: April 26, 2009, 11:30 local (18:30 UTC) - Place: Mansfield, WA - Coordinates: 47.809165, -119.636665 (estimated) - Nearby events: https://openairdocs.org/map.md?lat=47.8092&lon=-119.6367&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-flare/touchdown: Loss of control in flight](https://openairdocs.org/ntsb-events/240) - Highest injury: Minor injuries - Injuries: 3 minor - Status: Completed, report December 29, 2009 - Report: Approved by Office Director - NTSB office: Western Pacific Region - Parties: Federal Aviation Administration - NTSB case key (mKey): 73733 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR09LA217 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/73733/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=73733 - Page: https://openairdocs.org/ntsb/WPR09LA217 ## Probable cause The pilot's failure to maintain aircraft control while landing with a known crosswind condition. ## 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: [Goodacre Barrie L COMP MONSTER H P, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=05603OQ), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md) - [Wind: crosswind](https://openairdocs.org/ntsb-findings/03034040): Environmental issues › Conditions/weather/phenomena · Response/compensation; cases with it: [Goodacre Barrie L COMP MONSTER H P, 1 case](https://openairdocs.org/ntsb-findings/03034040/cases.md?model=05603OQ), [All aircraft, 1,008 cases](https://openairdocs.org/ntsb-findings/03034040/cases.md) - [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Goodacre Barrie L COMP MONSTER H P, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05603OQ), [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: Loss of control in flight](https://openairdocs.org/ntsb-events/240) (defining event); cases with it: [Goodacre Barrie L COMP MONSTER H P, 1 case](https://openairdocs.org/ntsb-events/240/sequence.md?model=05603OQ), [All aircraft, 5,002 cases](https://openairdocs.org/ntsb-events/240/sequence.md) - [Landing-flare/touchdown: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Goodacre Barrie L COMP MONSTER H P, 1 case](https://openairdocs.org/ntsb-events/470/sequence.md?model=05603OQ), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md) ## Analysis The pilot stated that prior to entering the pattern at the destination airport, he observed the airport's wind indicator, which showed a landing on runway 03, and to "expect a left crosswind component." The pilot reported that the approach for landing was normal; however, the airplane was bounced around from the "winds and/or turbulence," and that he had decided to go-around. Power was applied and then he raised the flaps. The airplane continued to descend and touched down on the runway, with full power. The airplane bounced back into the air with the right wing low. The airplane subsequently departed the runway environment as the pilot attempted to apply left aileron to raise the right wing. The airplane came to rest off the runway in a plowed wheat field. Examination of the airplane found no mechanical anomalies. ## Factual narrative On April 26, 2009, about 1130 Pacific daylight time, an experimental Goodacre Comp Monster H P (CA4-HP) airplane, N33254, collided with the terrain while landing at the Mansfield Airport (8W3), Mansfield, Washington. The pilot/owner operated the airplane under the provisions of Title 14 Code of Federal Regulations Part 91, as a personal flight. The pilot and two passengers all received minor injuries. The airplane sustained substantial damage. Visual meteorological conditions prevailed for the cross-country flight that departed Sandpoint Airport (SZT), Sandpoint, Idaho, about 1015. The flight was destined for Mansfield, and no flight plan had been filed. According to two witnesses, they observed the airplane on approach, descending to land. The airplane did not appear to be in any "distress" prior to the accident. First responders reported that the airplane came to rest off the runway in a plowed wheat field. One of the wings had been compromised, and was leaking fuel. According to the pilot he entered the downwind leg for runway 03 at Mansfield. He did not see a windsock, but recalled seeing an "airplane-type wind indicator on the ground on the [north] side of the field," which indicated a landing on runway 03 would be in order, and "to expect a left crosswind component." The pilot reported that everything appeared normal on the approach, and that he does not remember very much of the event. He stated that the last 3 to 5 seconds while on final, the airplane was bounced around from the "winds and/or turbulence," and that he had decided to go-around. The pilot reported that when he decided to go-around the airplane was between 75 to 100 feet above ground level (agl). He applied full power, waited a few seconds, and then raised the flaps. The pilot recalled looking out the window and being surprised to see that he was low, but also in danger of not making the runway. The airplane touched down on the runway centerline in "more-or-less" of a landing configuration with full power. He considered keeping the airplane on the runway, but indicated that it was a narrow runway and the airplane was being "blown about like a toy." He recalled the airplane being bounced back into the air with the right wing low, and departing the runway environment. He applied left aileron in an attempt to raise the right wing, and then he did not recall anything else until the medivac helicopter arrived. A Federal Aviation Administration (FAA) inspector examined the airplane and found no mechanical anomalies with the airplane. The closest official weather observation station was Pangborn Memorial Airport (EAT), Wenatchee, Washington, which was located 33 nautical miles (nm) southwest of the accident site. The elevation of the weather observation station was 1,249 feet msl. An aviation routine weather report (METAR) was issued at 1055 with the following information: clear skies; visibility 10 statute miles; winds from 300 degrees at 9 knots; temperature 13 degrees Celsius;dew point -5 degrees Celsius; altimeter 30.15 inches of Mercury. ## Aircraft - Registration: [N33254](https://openairdocs.org/deregistered/N33254-2011-11-02), registration cancelled 2011-11-02, S/N 96118, built 1998 (OpenAirDocs) - Reported make and model: Goodacre CA4-HP - Registry model: [Goodacre Barrie L COMP MONSTER H P](https://openairdocs.org/model/goodacre-barrie-l-comp-monster-h-p) (registry code 05603OQ) (OpenAirDocs) - Registry engine: [Franklin 6A-350SER](https://openairdocs.org/engine/franklin-6a-350ser) (registry code 27023, reciprocating) (OpenAirDocs) - Category: Airplane, amateur-built - Serial number: 96118 - Airframe hours: 116 - Engines: Franklin 6A-350 reciprocating - Damage: Substantial damage - Flight: Personal, Part 91 - Operator: James D. Dunn - Registered owner: James D. Dunn - Airworthiness certificate: Special, Experimental (Special) - Last inspection: Annual, November 24, 2008 - Departed: SZT, Sandpoint, ID - Destination: 8W3, Mansfield, WA - Airport: 8W3, Mansfield Airport, runway 03, 2,575 × 46 ft, asphalt ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 54; injuries: serious; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, without waivers/limitations; last flight review December 16, 2007; seat: left; flight hours: 2,181 total, 53 in this make and model, 1,440 as pilot in command, 3 in the last 90 days, 3 in the last 30 days, 2 in the last 24 hours ## Weather - Conditions: Visual (VMC), Day - Wind: 300° at 9 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 55 °F, dew point 23 °F - Altimeter: 30.14 inHg - Observed at: EPH, 33 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 20090426005839A](https://openairdocs.org/incident/20090426005839A), Apr 26, 2009: Goodac COMPMONSTER, Mansfield, WA, Substantial damage. (-23) During touch-down aircraft encountered a gust, left wing tipped up, drift not corrected before touch-down. Right wing tip drug on runway, aircraft left… ## Docket (2 files) The files NTSB released with the investigation on October 29, 2009, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=73733. 800 KB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 746 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40313601&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Redacted.PDF - Witness Statement (item 2, .PDF, 54 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40319134&FileExtension=.PDF&FileName=Witness%20Statement-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.