# NTSB WPR20CA213: Beech 33, N727P, Redmond, OR, July 6, 2020 - Type: NTSB accident investigation - Classification: Accident · No injuries · Class 4 · Data collection · Final report - Date: July 6, 2020, 10:30 local (17:30 UTC) - Place: Redmond, OR - Coordinates: 44.254165, -121.152221 - Nearby events: https://openairdocs.org/map.md?lat=44.2542&lon=-121.1522&mi=10 - Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping) - Defining event: [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094) - 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 - Parties: Federal Aviation Administration - NTSB case key (mKey): 101565 - NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR20CA213 - NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/101565/pdf - NTSB docket: https://data.ntsb.gov/Docket?ProjectID=101565 - Page: https://openairdocs.org/ntsb/WPR20CA213 ## Probable cause The left seated flight instructor’s improper manipulation of the landing gear position selection lever to the up position while still on the landing roll, which ultimately resulted in a landing gear collapse during a subsequent landing. ## Findings NTSB's coded findings; those marked are part of the probable cause. - [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Instructor/check pilot (probable cause); cases with it: [Beech F33A, 6 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=1151425), [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. - [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094) (defining event); cases with it: [Beech F33A, 5 cases](https://openairdocs.org/ntsb-events/094/sequence.md?model=1151425), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md) ## Analysis The purpose of the flight was for both flight instructors to perform a proficiency flight with one another. After performing maneuvers in the practice area, they returned to the departure airport to conduct touch-and-go practice takeoffs and landings. After the right-seated flight instructor made two landings, the left-seated flight instructor conducted the landing. After touchdown, while the airplane was in the landing roll, the left-seated flight instructor manipulated the landing gear position selection lever to the "up" position instead of the flap lever. Both instructors realized the mistake and attempted to move the gear lever back to the "down" position, but the left landing gear had already collapsed. The landing gear continued to retract, and they became airborne. After performing troubleshooting of the landing gear and performing a flyby, they decided to land at another airport with more facilities. The right-seated flight instructor performed the landing at the alternate airport and the airplane rolled on all three landing gear for about 1,000 ft. The left landing gear then collapsed and the airplane veered off the runway. The left aileron sustained damage as a result of the gear collapse. The left-seated flight instructor reported that there were no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. ## Aircraft - Registration: [N727P](https://openairdocs.org/aircraft/N727P), registered now, S/N CE-425, built 1973 (OpenAirDocs) - Reported make and model: Beech 33 (F33A) - Registry model: [Beech F33A](https://openairdocs.org/model/beech-f33a) (registry code 1151425) (OpenAirDocs) - Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs) - Category: Airplane - Serial number: CE-425 - Year built: 1973 - Airframe hours: 6448 - Engines: Continental IO-520-BB10B 285 horsepower reciprocating - Damage: Substantial damage - Flight: Instructional, Part 91 - Operator: Leading Edge Aviation Inc - Registered owner: Leading Edge Aviation Inc - Airworthiness certificate: Standard, Utility - Last inspection: 100 hour, March 6, 2020, 35 hours before - Departed: RDM, Redmond, OR - Destination: RDM, Redmond, OR - Airport: RDM, Roberts Field, runway 11, 7,006 × 100 ft, asphalt - Equipment: ADS-B ## Flight crew As NTSB recorded them. NTSB leaves out names. - Pilot; age 26; injuries: none; commercial, flight instructor; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review October 18, 2019; seat: left; restraint: 4-point; flight hours: 1,477 total, 15 in this make and model, 1,412 as pilot in command, 58 in the last 90 days, 29 in the last 30 days, 1 in the last 24 hours - Pilot; age 35; injuries: none; commercial, flight instructor; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, without waivers/limitations; last flight review April 19, 2019; seat: right; restraint: 4-point; flight hours: 1,202 total, 39 in this make and model, 1,115 as pilot in command, 63 in the last 90 days, 48 in the last 30 days ## Weather - Conditions: Visual (VMC), Day - Wind: 130° at 5 knots - Visibility: 10 statute miles - Lowest ceiling: none - Temperature: 68 °F, dew point 43 °F - Altimeter: 30.02 inHg - Observed at: KRDM, 1 nm away ## Docket (2 files) The files NTSB released with the investigation on September 10, 2020, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=101565. 4.7 MB in all. - Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 4.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40486840&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF - Pictures of Damage (item 2, .PDF, 77 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40486841&FileExtension=.PDF&FileName=Pictures%20of%20Damage-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.