# NTSB WPR16CA022: Knox Marion L RV-6A, N259MK, Lebanon, OR, November 6, 2015

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Data collection · Final report
- Date: November 6, 2015, 12:30 local (20:30 UTC)
- Place: Lebanon, OR
- Coordinates: 44.595001, -122.952224 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.5950&lon=-122.9522&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-aborted after touchdown: Abnormal runway contact](https://openairdocs.org/ntsb-events/090)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report March 14, 2016
- Report: Approved by Office Director
- NTSB office: Western Pacific Region
- NTSB case key (mKey): 92301
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR16CA022
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/92301/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=92301
- Page: https://openairdocs.org/ntsb/WPR16CA022

## Probable cause

The pilot's failure to maintain airplane control following an aborted landing which resulted in a collision with trees.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Knox Marion L RV-6A, 1 case](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=05627LV), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/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: [Knox Marion L RV-6A, 1 case](https://openairdocs.org/ntsb-findings/01062020/cases.md?model=05627LV), [All aircraft, 3,958 cases](https://openairdocs.org/ntsb-findings/01062020/cases.md)
- [Object/animal/substance: tree(s)](https://openairdocs.org/ntsb-findings/03022020): Environmental issues › Physical environment · Contributed to outcome (probable cause); cases with it: [Knox Marion L RV-6A, 1 case](https://openairdocs.org/ntsb-findings/03022020/cases.md?model=05627LV), [All aircraft, 933 cases](https://openairdocs.org/ntsb-findings/03022020/cases.md)

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Landing-aborted after touchdown: Abnormal runway contact](https://openairdocs.org/ntsb-events/090) (defining event); cases with it: [Knox Marion L RV-6A, 1 case](https://openairdocs.org/ntsb-events/090/sequence.md?model=05627LV), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md)
- [Landing-aborted after touchdown: Collision with terr/obj (non-CFIT) ](https://openairdocs.org/ntsb-events/470); cases with it: [Knox Marion L RV-6A, 1 case](https://openairdocs.org/ntsb-events/470/sequence.md?model=05627LV), [All aircraft, 10,189 cases](https://openairdocs.org/ntsb-events/470/sequence.md)

## Analysis

The pilot was landing the airplane on his 1,500-foot grass airstrip. During the landing, the airplane bounced and the pilot aborted the landing. As power was applied, the airplane moved to the left side of the runway into trees and the airplane came down on a workshop roof south of the runway substantially damaging the fuselage. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

## Factual narrative

The pilot was landing the airplane on his 1,500-foot grass airstrip. During the landing, the airplane bounced and the pilot aborted the landing. As power was applied, the airplane moved to the left side of the runway into trees and the airplane came down on a workshop roof south of the runway substantially damaging the fuselage. The pilot reported no mechanical malfunctions or failures with the airplane that would have precluded normal operation.

## Aircraft

- Registration: [N259MK](https://openairdocs.org/deregistered/N259MK-2019-01-29), registration cancelled 2019-01-29, S/N 20253, built 2008 (OpenAirDocs)
- Reported make and model: KNOX MARION L RV-6A (A)
- Registry model: [Knox Marion L RV-6A](https://openairdocs.org/model/knox-marion-l-rv-6a) (registry code 05627LV) (OpenAirDocs)
- Registry engine: [Mazda 13B](https://openairdocs.org/engine/mazda-13b) (registry code 43200, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 20253
- Year built: 2008
- Airframe hours: 255
- Engines: MAZDA 13B reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Marion KNOX
- Registered owner: Marion KNOX
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Condition, June 4, 2015, 15 hours before
- Departed: none, Lebanon, OR
- Destination: none, Lebanon, OR
- Airport: none, Private, runway west, 1,500 × 80 ft, grass/turf
- Equipment: Electronic primary flight display, Handheld GPS

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 78; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations; seat: left; restraint: 4-point; flight hours: 324 total, 255 in this make and model, 271.3 as pilot in command, 12.8 in the last 90 days, 6 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 5 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 59 °F, dew point 46 °F
- Altimeter: 30.31 inHg
- Observed at: CVO, 15 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 20151106020789A](https://openairdocs.org/incident/20151106020789A), Nov 6, 2015: Knox Marion L RV-6A, Lebanon, OR, Destroyed. While attempting to land on private grass strip, aircraft bounced severely. Pilot attempted a go-around. Aircraft drifted left and struck trees and came to…

## Docket (2 files)

The files NTSB released with the investigation on February 11, 2016, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=92301. 997 KB in all.

- Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1 (item 1, .PDF, 726 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40436594&FileExtension=.PDF&FileName=Pilot%2FOperator%20Aircraft%20Accident%20Report,%20NTSB%20Form%206120.1-Master.PDF
- Photo (Courtesy of Linn County Sheriff's Office) (item 2, .PDF, 1 photo, 271 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=40436593&FileExtension=.PDF&FileName=Photo%20(Courtesy%20of%20Linn%20County%20Sheriff%27s%20Office)-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.

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