Friday, July 09, 2021

Ground Collision: Van's RV-8, N526KP and Van's RV-8, N808LD; accident occurred July 08, 2021 at Hillsboro Airport (KHIO), Portland, Oregon







Aviation Accident Final Report - National Transportation Safety Board
    
The National Transportation Safety Board did not travel to the scene of this accident. 

Additional Participating Entity: 
Federal Aviation Administration / Flight Standards District Office; Portland, Oregon

Investigation Docket - National Transportation Safety Board:



Location: Hillsboro, Oregon
Accident Number: WPR21LA276
Date and Time: July 8, 2021, 18:25 Local 
Registration: N526KP (A1); N808LD (A2)
Aircraft: PAYNE STEVEN R RV-8 (A1); DAVIDSON LARRY R RV-8 (A2) 
Aircraft Damage: Substantial (A1); Minor (A2)
Defining Event: Ground collision 
Injuries: 1 None (A1); 1 None (A2)
Flight Conducted Under: Part 91: General aviation - Personal (A1); Part 91: General aviation - Personal (A2) 

Analysis

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.

Probable Cause and Findings

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
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

Personnel issues (A1) Monitoring other aircraft - Pilot of other aircraft
Environmental issues (A1) Aircraft - Contributed to outcome
Personnel issues (A2) Monitoring other aircraft - Pilot
Environmental issues (A2) Aircraft - Contributed to outcome

Factual Information

History of Flight

Taxi-to runway (A1) Ground collision (Defining event)

Pilot Information (A1)

Certificate: Private 
Age: 54, Male
Airplane Rating(s): Single-engine land 
Seat Occupied: Front
Other Aircraft Rating(s): None 
Restraint Used: 5-point
Instrument Rating(s): Airplane 
Second Pilot Present:
Instructor Rating(s): None
Toxicology Performed:
Medical Certification: Class 3 With waivers/limitations 
Last FAA Medical Exam: March 12, 2021
Occupational Pilot: UNK
Last Flight Review or Equivalent: August 25, 2019
Flight Time: 3695 hours (Total, all aircraft), 2264 hours (Total, this make and model), 3650 hours (Pilot In Command, all aircraft), 33 hours (Last 90 days, all aircraft), 20 hours (Last 30 days, all aircraft), 0 hours (Last 24 hours, all aircraft)

Pilot Information (A2)

Certificate: Airline transport; Flight engineer; Flight instructor
Age: 74, Male
Airplane Rating(s): Single-engine land; Single-engine sea; Multi-engine land
Seat Occupied: Front
Other Aircraft Rating(s): None
Restraint Used: 5-point
Instrument Rating(s): Airplane
Second Pilot Present:
Instructor Rating(s): Airplane multi-engine; Airplane single-engine
Toxicology Performed:
Medical Certification: BasicMed With waivers/limitations 
Last FAA Medical Exam: July 1, 2018
Occupational Pilot: No
Last Flight Review or Equivalent: May 1, 2021
Flight Time: (Estimated) 18200 hours (Total, all aircraft), 404 hours (Total, this make and model)

Aircraft and Owner/Operator Information (A1)

Aircraft Make: PAYNE STEVEN R
Registration: N526KP
Model/Series: RV-8 
Aircraft Category: Airplane
Year of Manufacture: 2007
Amateur Built:
Airworthiness Certificate: None 
Serial Number: 81648
Landing Gear Type: Tailwheel
Seats: 2
Date/Type of Last Inspection: July 26, 2020 Condition 
Certified Max Gross Wt.:
Time Since Last Inspection: 0.5 Hrs
Engines: 1 Reciprocating
Airframe Total Time: 2233 Hrs at time of accident 
Engine Manufacturer: Lycoming
ELT: C126 installed, not activated 
Engine Model/Series: IO-360-M1B
Registered Owner: 
Rated Power: 180 Horsepower
Operator: 
Operating Certificate(s) Held: None

Aircraft and Owner/Operator Information (A2)

Aircraft Make: DAVIDSON LARRY R 
Registration: N808LD
Model/Series: RV-8 
Aircraft Category: Airplane
Year of Manufacture: 2011 
Amateur Built:
Airworthiness Certificate: Unknown 
Serial Number: 82693
Landing Gear Type: 
Seats: 2
Date/Type of Last Inspection: 
Certified Max Gross Wt.:
Time Since Last Inspection: 
Engines: 1 Reciprocating
Airframe Total Time: 
Engine Manufacturer: AEROSPORT
ELT: 
Engine Model/Series: IO375
Registered Owner: 
Rated Power: 180 Horsepower
Operator: 
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual (VMC) 
Condition of Light: Day
Observation Facility, Elevation: KHIO,204 ft msl 
Distance from Accident Site: 0 Nautical Miles
Observation Time: 00:53 Local 
Direction from Accident Site: 135°
Lowest Cloud Condition: Clear
Visibility: 10 miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: / 
Turbulence Type Forecast/Actual:  /
Wind Direction: 
Turbulence Severity Forecast/Actual:  /
Altimeter Setting: 30.02 inches Hg 
Temperature/Dew Point: 14°C / 11°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Hillsboro, OR (A1); Hillsboro, OR (A2)
Type of Flight Plan Filed: VFR (A1); VFR (A2)
Destination: Hillsboro, OR (A1); Hillsboro, OR (A2)
Type of Clearance: None (A1); None (A2)
Departure Time: 
Type of Airspace:

Airport Information

Airport: PORTLAND-HILLSBORO HIO 
Runway Surface Type: Asphalt
Airport Elevation: 207 ft msl
Runway Surface Condition: Dry
Runway Used: 13R/31L 
IFR Approach: None
Runway Length/Width: 6600 ft / 150 ft 
VFR Approach/Landing: None

Wreckage and Impact Information (A1)

Crew Injuries: 1 None 
Aircraft Damage: Substantial
Passenger Injuries:
Aircraft Fire: None
Ground Injuries: 
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude: 45.5442,-122.95356(est)

Wreckage and Impact Information (A2)

Crew Injuries: 1 None 
Aircraft Damage: Minor
Passenger Injuries:
Aircraft Fire: None
Ground Injuries: 
Aircraft Explosion: None
Total Injuries: 1 None 
Latitude, Longitude: 45.5442,-122.95356 (est)

4 comments:

  1. Is it purely coincidental that they were the same "experimental" airplane type? Was there a meetup?

    ReplyDelete
    Replies
    1. Yes, whether it was intentional or not...

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    2. Probably were together, since N526KP served as the flight leader of a 2018 West Coast Ravens formation flight of RV's. Being in front has it's risks! Hope they both get repaired and keep going strong.

      Formation photo (N526KP in front):
      https://3.bp.blogspot.com/-IM4siPjwUEM/V2M3vNGJT1I/AAAAAAAAKfw/u3MwqzD9eck6pRGtQiEZFqapEy_OnbJWwCLcB/s1600/DSC_0201.JPG

      The flight leader:
      https://3.bp.blogspot.com/-NIgjS-XZyDY/V2M3wqf0j0I/AAAAAAAAKgQ/3puy9RhUngInkaIYkxj0dgPc1Pa6x6vwACLcB/s1600/DSC_0247.JPG

      The lineup (arrived & parked synchronized):
      https://3.bp.blogspot.com/-NrcvON3w3eQ/V2M3zooYLmI/AAAAAAAAKg4/Yq2LVIJ8gZsjstcv3iSNFctfAFPWDt3YACLcB/s1600/DSC_0311.JPG

      https://www.westcoastravens.com/

      Photo links are from:
      https://mwithakaviation.blogspot.com/2016/06/

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    3. Video of N526KP leading, see close up at 4:40 when they park:
      https://youtu.be/8ULw0bcc8wM

      24 Ship formation:
      https://youtu.be/AsJ5G4YO-9Q

      Set resolution higher than default 480p when viewing...

      Delete