# NTSB WPR21LA276: Payne Steven R RV-8, N526KP, Hillsboro, OR, July 9, 2021

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Limited · Final report
- Date: July 8, 2021, 18:25 local (Jul 9, 2021, 01:25 UTC)
- Place: Hillsboro, OR
- Coordinates: 45.5442, -122.95356 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.5442&lon=-122.9536&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Defining events: [Taxi-to runway: Ground collision](https://openairdocs.org/ntsb-events/200); [Taxi-to runway: Ground collision](https://openairdocs.org/ntsb-events/200)
- 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): 103503
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR21LA276
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/103503/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=103503
- Page: https://openairdocs.org/ntsb/WPR21LA276

## Probable cause (aircraft 1)

The second pilot’s diverted attention while taxing which, resulted in his failure to maintain clearance from another airplane holding short of the runway.

## Findings

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

- [Object/animal/substance: aircraft](https://openairdocs.org/ntsb-findings/03022040): Environmental issues › Physical environment · Contributed to outcome, aircraft 1; cases with it: [Payne Steven R RV-8, 1 case](https://openairdocs.org/ntsb-findings/03022040/cases.md?model=05622UF), [All aircraft, 116 cases](https://openairdocs.org/ntsb-findings/03022040/cases.md)
- [Attention/monitoring: monitoring other aircraft](https://openairdocs.org/ntsb-findings/02021540): Personnel issues › Psychological · Pilot of other aircraft (probable cause), aircraft 1; cases with it: [Payne Steven R RV-8, 1 case](https://openairdocs.org/ntsb-findings/02021540/cases.md?model=05622UF), [All aircraft, 231 cases](https://openairdocs.org/ntsb-findings/02021540/cases.md)
- [Attention/monitoring: monitoring other aircraft](https://openairdocs.org/ntsb-findings/02021540): Personnel issues › Psychological · Pilot (probable cause), aircraft 2; cases with it: [Davidson Larry R RV-8, 1 case](https://openairdocs.org/ntsb-findings/02021540/cases.md?model=05630IO), [All aircraft, 231 cases](https://openairdocs.org/ntsb-findings/02021540/cases.md)
- [Object/animal/substance: aircraft](https://openairdocs.org/ntsb-findings/03022040): Environmental issues › Physical environment · Contributed to outcome, aircraft 2; cases with it: [Davidson Larry R RV-8, 1 case](https://openairdocs.org/ntsb-findings/03022040/cases.md?model=05630IO), [All aircraft, 116 cases](https://openairdocs.org/ntsb-findings/03022040/cases.md)

## Sequence of events

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

- [Taxi-to runway: Ground collision](https://openairdocs.org/ntsb-events/200) (defining event), aircraft 1; cases with it: [Payne Steven R RV-8, 1 case](https://openairdocs.org/ntsb-events/200/sequence.md?model=05622UF), [All aircraft, 618 cases](https://openairdocs.org/ntsb-events/200/sequence.md)
- [Taxi-to runway: Ground collision](https://openairdocs.org/ntsb-events/200) (defining event), aircraft 2; cases with it: [Davidson Larry R RV-8, 1 case](https://openairdocs.org/ntsb-events/200/sequence.md?model=05630IO), [All aircraft, 618 cases](https://openairdocs.org/ntsb-events/200/sequence.md)

## Analysis (aircraft 1)

The group of 6 airplanes were practicing formation flight for an airshow the following day. The airplanes were to takeoff in three groups of 2-airplane elements. The pilot in the lead airplane in the first group reported that, during taxi to the runway, he had come to a stop at the hold short line. The pilot who was in the second airplane, which was taxing behind the lead airplane, became distracted with the radios before looking up and seeing that the lead airplane had stopped. The pilot applied excessive braking; however, the tailwheel lifted off the ground. To prevent the propeller from ground impact, he released the brakes and the airplane collided with the lead airplane’s empennage. The lead airplane’s rudder and elevator were substantially damaged. The second airplane received minor damage. Neither pilot reported that there were any mechanical failures or malfunctions with either airplane that would have precluded normal operation.

## Aircraft 1

- Registration: [N526KP](https://openairdocs.org/aircraft/N526KP), registered now, S/N 81648, built 2007 (OpenAirDocs)
- Reported make and model: PAYNE STEVEN R RV-8
- Registry model: [Payne Steven R RV-8](https://openairdocs.org/model/payne-steven-r-rv-8) (registry code 05622UF) (OpenAirDocs)
- Registry engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999) (OpenAirDocs)
- Category: Airplane
- Serial number: 81648
- Year built: 2007
- Airframe hours: 2233
- Engines: Lycoming IO-360-M1B 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Payne Steven R
- Registered owner: Payne Steven R
- Airworthiness certificate: None
- Last inspection: Condition, July 26, 2020, 0.5 hours before
- Destination: Same as departure
- Flight plan: VFR
- Airport: HIO, Portland-Hillsboro, runway 13R/31L, 6,600 × 150 ft, asphalt
- Equipment: ADS-B, Angle of attack indicator, Stall warning system, Onboard weather, Electronic primary flight display, Electronic multifunction display, Electronic flight bag or handheld device, Auto-pilot

## Aircraft 2

- Registration: [N808LD](https://openairdocs.org/aircraft/N808LD), registered now, S/N 82693, built 2011 (OpenAirDocs)
- Reported make and model: DAVIDSON LARRY R RV-8
- Registry model: [Davidson Larry R RV-8](https://openairdocs.org/model/davidson-larry-r-rv-8) (registry code 05630IO) (OpenAirDocs)
- Registry engine: [Aerosport IO-375 series](https://openairdocs.org/engine/aerosport-io-375-series) (registry code 01305, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 82693
- Year built: 2011
- Engines: AEROSPORT IO375 180 horsepower reciprocating
- Damage: Minor damage
- Flight: Personal, Part 91
- Operator: Morey Richard J
- Registered owner: Morey Richard J
- Airworthiness certificate: Unknown
- Destination: Same as departure
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot, aircraft N526KP; age 54; injuries: none; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 3, with waivers/limitations; last flight review August 25, 2019; seat: front; restraint: 5-point; flight hours: 3,695 total, 2,264 in this make and model, 3,650 as pilot in command, 33 in the last 90 days, 20 in the last 30 days, 0 in the last 24 hours
- Pilot, aircraft N808LD; age 74; injuries: none; airline transport, flight engineer, flight instructor; airplane ratings: single-engine land, single-engine sea, multi-engine land; instrument ratings: airplane; medical: basicmed, with waivers/limitations; last flight review May 1, 2021; seat: front; restraint: 5-point; flight hours: 18,200 total, 404 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 57 °F, dew point 52 °F
- Altimeter: 30.02 inHg
- Observed at: KHIO
- METAR: KHIO 080753Z AUTO 00000KT 10SM CLR 14/11 A3002 RMK AO2 SLP165 T01390111 402390133

## FAA reports on this event (2)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20210709010482A](https://openairdocs.org/incident/20210709010482A), Jul 9, 2021: Payne Steven R RV-8, Hillsboro, OR, Substantial damage. Two aircraft were taxiing out to go practice formation flying for joseph, OR airshow. N526KP was lead aircraft, N808LD was second aircraft, piloted by [privacy…
- [Accident 20210709010472A](https://openairdocs.org/incident/20210709010472A), Jul 9, 2021: Davidson Larry R RV-8, Hillsboro, OR, Minor damage. This aircraft was the second aircraft in the accident. N526KP and N808LD were taxiing out to go practice formation flying for an airshow. N526KP stopped short…

## Docket (2 files)

The files NTSB released with the investigation on September 22, 2021, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=103503. 3.1 MB in all.

- Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 11 pages, 2.2 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12504058&FileExtension=pdf&FileName=6120_Redacted-Rel.pdf
- Photos (courtesy of airplane owners) (item 2, PDF, 3 pages, 958 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=12734345&FileExtension=pdf&FileName=Owner_s%20Photos-Photo%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.