Sunday, August 5, 2018

Hoover Arnold AR-6, registered to the pilot and operated as Race 11, N616DH (and) Reberry 3M1C1R, registered to Hot Stuff Air Racing LLC and was operated as Race 1, N913FT: Accident occurred September 18, 2016 at Reno-Stead Airport (KRTS), Washoe County, Nevada

The National Transportation Safety Board did not travel to the scene of this accident.

Additional Participating Entities:
Federal Aviation Administration / Flight Standards District Office; Reno, Nevada
Reno Air Races Association; Reno, Nevada
International Formula One Inc.; Reno, Nevada

N616DH  Aviation Accident Factual Report - National Transportation Safety Board: https://app.ntsb.gov/pdf  

N616DH  Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

http://registry.faa.gov/N616DH

Location: Reno, NV
Accident Number: WPR16LA185A
Date & Time: 09/18/2016, 1118 PDT
Registration: N616DH
Aircraft: HOOVER DAVID ARNOLD AR 6
Aircraft Damage: Substantial
Defining Event: Collision during takeoff/land
Injuries: 1 None
Flight Conducted Under: Part 91: General Aviation - Air Race/Show 

On September 18, 2016, about 1118 Pacific daylight time, a tailwheel equipped experimental amateur built (EAB) Hoover Arnold AR-6, N616DH, struck a tailwheel equipped EAB Reberry 3M1C1R, N913FT, during the takeoff roll at the Reno-Stead Airport (RTS), Reno, Nevada. The airline transport pilot, in the AR-6 was not injured and the airline transport pilot in the 3M1C1R, sustained minor injuries. The AR-6 was registered to the pilot and operated as Race 11. The 3M1C1R was registered to Hot Stuff Air Racing LLC., Kissimmee, Florida, and was operated as Race 1. Both airplanes were operated by the pilots under the provisions of Title 14 Code of Federal Regulations Part 91 as an air race flight, which was originating at the time of the accident. Visual meteorological conditions prevailed and no flight plan was filed for either airplane.

The race heat consisted of 8 airplanes, each positioned in a staggered formation on the runway. Figure 1 depicts the position of each airplane prior to the race start. Flaggers were located to the right of each row on the runway edge. Additionally, a race start flagger was located on the right side of the runway, in front of the first row of airplanes. Prior to the race start, all of the airplanes are at takeoff power, waiting for the race start signal. The race start is signaled by the race start flagger raising and subsequently dropping a green flag along with flaggers on the second and third row raising and dropping white flags.


Figure 1: Formula One Staggered Race Start Diagram with Race 1 and 11 and Flagger Locations Depicted

The pilot of Race 11 reported that he was in the back row of the Formula 1 staggered start sequence on runway 8. Once he saw the green flag for start, he initiated takeoff and observed both airplanes to the left and right of him accelerating faster than he did. As the tail of the airplane came up, the pilot observed Race 1 stationary on the runway and he attempted to swerve out of the way and get the airplane airborne. Subsequently, Race 11 impacted Race 1.

The pilot of Race 1 reported that he was in the number four position, which was located in the middle row, inside position. He stated that when running the engine up in anticipation of the start, about 20 seconds before the green flag drop, the engine was not running well enough for flight and he made the decision to shut the engine down to signal the starters to halt the starting process. The pilot recalled that a flagman on his row put his hands in an 'X' over his head and he decided to open his canopy to make it clear he was out of the race and so everyone could see him. The pilot further reported that an alternate airplane was signaled to taxi on to the runway to replace his entry and that he felt confident the communications had reached the appropriate people as he waited for personnel to push his airplane off the runway. The pilot stated that shortly after, he saw the flagman run out on to the runway waving his hands over his head as if something was wrong and observed the airplane to his right start his takeoff roll. A few seconds later, Race 6 and Race 8 passed by him on either side, and subsequently, he was impacted from behind. A completed Pilot/Operator Aircraft Accident Report Form (6120.1) was not received from the pilot of Race 1.

The race starter, who was standing in the rear bed of his truck during the start of the race, reported that he observed all of the Formula One aircraft engines running in all three rows. Prior to raising the green start flag, he lowered the red flag and slowly returned it to the bed of his truck and grabbed the green flag and raised it up. The race starter stated that he observed that all of the aircraft were running and at the scheduled take off time, he dropped the green flag. He observed the front row start their take-off roll and immediately observed Race 1's propeller stop, and the canopy open. He then observed the third row of aircraft taking off and approach the second row, followed by the collision between Race 11 and Race 1.

The flagger, who was positioned on the second row as depicted in figure 1, reported that everything seemed to appear normal leading up to the race start. He observed the second row "Red Flagger" hold up one finger indicating the one-minute time hack and then getting a firm thumbs up from each of the two pilots positioned in the second row. The flagger stated that his attention then turned to the Reno Starter Position, who was located past the front row of aircraft and that he observed the green flag being raised and the red flag being lowered; he followed by raising his green flag. Seconds later, the Reno Starter dropped the green flag and he followed by dropping his green flag drop in sequence with the Reno Starter and proceeded to run several yards back to clear himself away from the runway. The flagger stated that when he turned around to view the runway, he saw Race 1 stationary on the runway and Race 11 directly behind his position. A second later, the collision occurred.

Examination of Race 1 revealed that the upper portion of the rudder and vertical stabilizer were separated. Multiple propeller slash marks were observed on the right wing, which was partially separated. Examination of Race 11 revealed that the left wing was structurally damaged, and the left main landing gear structure was compressed upward through the wing structure.

Multiple recorded videos of the accident were provided by various witnesses located on the taxiway or the ramp.

One video, captured from a vehicle located on the taxiway adjacent to the third row of airplanes, revealed that a golf cart with a red flag attached to the back of it, drove from the runway edge into the rocky infield between the runway and taxiway to an area abeam the second row about 13 seconds prior to the race start. A flagger, standing near the edge of the runway, was observed raising a white flag and moving it downward, signaling the start of the race to the third row 3 seconds later. As the third row of airplanes began their takeoff sequence, the car began moving forward, abeam the third row of the airplanes. The video showed that at the time of the impact between Race 1 and Race 11, the golf cart that had the red flag attached to the back of the seating area was parked in the rocky infield, and the flag remained attached to the golf cart. Shortly after, the video panned forward briefly, providing view of the truck, where the race starter was positioned. No flags were observed being displayed at the race starters truck.

Onboard video from Race 1, revealed that the camera was mounted in the forward area of the cockpit, providing video of the pilot, and surrounding runway environment, including the third row of airplanes and flaggers adjacent to the third row. About 4 seconds from the start of the video, the engine was heard running erratically. At 11 seconds, the pilot was observed looking to his right and began shutting down the engine along with starting to open the canopy 2 seconds later. Between 16 and 17 seconds, the canopy was opened. At the same time, a flagger was observed on the ramp side of the runway, dropping a white flag, signaling the start of the race to the third row. At 25 to 26 seconds, airplanes were observed passing on both the left and right side of his position, followed by the left wing and landing gear of Race 11 colliding with the empennage and right wing of Race 1 about a second later. It was noted that during the 10 seconds from the canopy opening to the time of the collision, Race 11 was observed drifting slightly left during the takeoff roll.

Onboard video from Race 11, revealed that the camera was mounted behind the pilot's left shoulder, providing a view of the left side of the engine cowling, left wing, small portion of the left side of the cockpit and instrument panel, along with the left side of the runway, which included Race 69. About 1 minute after the start of the video, Race 11 and Race 69 were observed starting their takeoff roll. About 11 seconds later, the left wing was observed striking Race 1. During the 11 seconds of the takeoff roll, Race 11 was observed drifting slightly left.

The International Formula One Procedure Rules, revision R2, dated January 2007, outlined the start procedures as the following:

1. The red flag will come up at T-5 minutes. It will be replaced by the green flag at T-10 seconds. Drop of the green flag signals the start of the race.

2. The race starts when the starter's flag drops. The starting time for all aircraft will be taken from the time the first aircraft crosses the start line, in flight, after the scatter lap.

3. Premature starts within 5 seconds will be penalized 30 seconds but the race will not be stopped. Starts earlier than 5 seconds will result in disqualification.

4. All rows will launch simultaneously. Anyone aborting take-off will abort straight ahead and attempt to clear to the end of the runway expeditiously.

There was no additional guidance outlining abort procedures in the event of a rough running engine prior to the start of the race.

According to the Director of Operations of the International Formula One organization, three briefs were conducted the morning of the accident. The third brief, which was held at the end of the runway, covered various items including positioning of the airplanes for the takeoff grid, startup procedures, and abort procedures. The Director of Operations stated that they discussed with the pilots that once the green flag drops, if the pilots are experiencing engine trouble they were instructed to hold their line on the takeoff grid and roll out [to the end of the runway].

Pilot Information

Certificate: Airline Transport
Age: 61, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Center
Other Aircraft Rating(s): None
Restraint Used: 4-point
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): Airplane Single-engine; Instrument Airplane
Toxicology Performed: No
Medical Certification: Class 1 With Waivers/Limitations
Last FAA Medical Exam: 06/22/2016
Occupational Pilot: Yes
Last Flight Review or Equivalent:
Flight Time:  17227 hours (Total, all aircraft), 64 hours (Total, this make and model), 12956 hours (Pilot In Command, all aircraft), 183 hours (Last 90 days, all aircraft), 28 hours (Last 30 days, all aircraft), 1 hours (Last 24 hours, all aircraft) 

Aircraft and Owner/Operator Information

Aircraft Make: HOOVER DAVID
Registration: N616DH
Model/Series: ARNOLD AR 6 NO SERIES
Aircraft Category: Unknown
Year of Manufacture:
Amateur Built: Yes
Airworthiness Certificate: Experimental
Serial Number: 01
Landing Gear Type: Tailwheel
Seats:
Date/Type of Last Inspection:
07/21/2016, Condition 
Certified Max Gross Wt.:
Time Since Last Inspection: 4 Hours
Engines:  Reciprocating
Airframe Total Time: 129.6 Hours at time of accident
Engine Manufacturer: Continental
ELT: Not installed
Engine Model/Series: O-200
Registered Owner: On file
Rated Power:
Operator: On file
Operating Certificate(s) Held: None

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KRNO, 4410 ft msl
Distance from Accident Site: 12 Nautical Miles
Observation Time: 1755 UTC
Direction from Accident Site: 153°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 4 knots /
Turbulence Type Forecast/Actual: /
Wind Direction: 190°
Turbulence Severity Forecast/Actual: /
Altimeter Setting: 30.19 inches Hg
Temperature/Dew Point: 23°C / 1°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Reno, NV (RTS)
Type of Flight Plan Filed: None
Destination: Reno, NV (RTS)
Type of Clearance: None
Departure Time:  PDT
Type of Airspace: Class G

Airport Information

Airport: RENO/STEAD (RTS)
Runway Surface Type: Asphalt
Airport Elevation: 5050 ft
Runway Surface Condition: Dry
Runway Used: 08
IFR Approach:None 
Runway Length/Width: 7608 ft / 150 ft
VFR Approach/Landing: None

Wreckage and Impact Information

Crew Injuries: 1 None
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 None
Latitude, Longitude:  39.664444, -119.891111

N913FT  Aviation Accident Factual Report - National Transportation Safety Board:  https://app.ntsb.gov/pdf

N913FT  Investigation Docket - National Transportation Safety Board: https://dms.ntsb.gov/pubdms

http://registry.faa.gov/N913H

Location: Reno, NV
Accident Number: WPR16LA185B
Date & Time: 09/18/2016, 1118 PDT
Registration: N913FT
Aircraft: REBERRY BRIAN 3M1C1R
Aircraft Damage: Substantial
Defining Event: Collision during takeoff/land
Injuries: 1 Minor
Flight Conducted Under: Part 91: General Aviation - Air Race/Show 

On September 18, 2016, about 1118 Pacific daylight time, a tailwheel equipped experimental amateur built (EAB) Hoover Arnold AR-6, N616DH, struck a tailwheel equipped EAB Reberry 3M1C1R, N913FT, during the takeoff roll at the Reno-Stead Airport (RTS), Reno, Nevada. The airline transport pilot, in the AR-6 was not injured and the airline transport pilot in the 3M1C1R, sustained minor injuries. The AR-6 was registered to the pilot and operated as Race 11. The 3M1C1R was registered to Hot Stuff Air Racing LLC., Kissimmee, Florida, and was operated as Race 1. Both airplanes were operated by the pilots under the provisions of Title 14 Code of Federal Regulations Part 91 as an air race flight, which was originating at the time of the accident. Visual meteorological conditions prevailed and no flight plan was filed for either airplane.

The race heat consisted of 8 airplanes, each positioned in a staggered formation on the runway. Figure 1 depicts the position of each airplane prior to the race start. Flaggers were located to the right of each row on the runway edge. Additionally, a race start flagger was located on the right side of the runway, in front of the first row of airplanes. Prior to the race start, all of the airplanes are at takeoff power, waiting for the race start signal. The race start is signaled by the race start flagger raising and subsequently dropping a green flag along with flaggers on the second and third row raising and dropping white flags.


Figure 1: Formula One Staggered Race Start Diagram with Race 1 and 11 and Flagger Locations Depicted.

The pilot of Race 11 reported that he was in the back row of the Formula 1 staggered start sequence on runway 8. Once he saw the green flag for start, he initiated takeoff and observed both airplanes to the left and right of him accelerating faster than he did. As the tail of the airplane came up, the pilot observed Race 1 stationary on the runway and he attempted to swerve out of the way and get the airplane airborne. Subsequently, Race 11 impacted Race 1.

The pilot of Race 1 reported that he was in the number four position, which was located in the middle row, inside position. He stated that when running the engine up in anticipation of the start, about 20 seconds before the green flag drop, the engine was not running well enough for flight and he made the decision to shut the engine down to signal the starters to halt the starting process. The pilot recalled that a flagman on his row put his hands in an 'X' over his head and he decided to open his canopy to make it clear he was out of the race and so everyone could see him. The pilot further reported that an alternate airplane was signaled to taxi on to the runway to replace his entry and that he felt confident the communications had reached the appropriate people as he waited for personnel to push his airplane off the runway. The pilot stated that shortly after, he saw the flagman run out on to the runway waving his hands over his head as if something was wrong and observed the airplane to his right start his takeoff roll. A few seconds later, Race 6 and Race 8 passed by him on either side, and subsequently, he was impacted from behind. A completed Pilot/Operator Aircraft Accident Report Form (6120.1) was not received from the pilot of Race 1.

The race starter, who was standing in the rear bed of his truck during the start of the race, reported that he observed all of the Formula One aircraft engines running in all three rows. Prior to raising the green start flag, he lowered the red flag and slowly returned it to the bed of his truck and grabbed the green flag and raised it up. The race starter stated that he observed that all of the aircraft were running and at the scheduled take off time, he dropped the green flag. He observed the front row start their take-off roll and immediately observed Race 1's propeller stop, and the canopy open. He then observed the third row of aircraft taking off and approach the second row, followed by the collision between Race 11 and Race 1.

The flagger, who was positioned on the second row as depicted in figure 1, reported that everything seemed to appear normal leading up to the race start. He observed the second row "Red Flagger" hold up one finger indicating the one-minute time hack and then getting a firm thumbs up from each of the two pilots positioned in the second row. The flagger stated that his attention then turned to the Reno Starter Position, who was located past the front row of aircraft and that he observed the green flag being raised and the red flag being lowered; he followed by raising his green flag. Seconds later, the Reno Starter dropped the green flag and he followed by dropping his green flag drop in sequence with the Reno Starter and proceeded to run several yards back to clear himself away from the runway. The flagger stated that when he turned around to view the runway, he saw Race 1 stationary on the runway and Race 11 directly behind his position. A second later, the collision occurred.

Examination of Race 1 revealed that the upper portion of the rudder and vertical stabilizer were separated. Multiple propeller slash marks were observed on the right wing, which was partially separated. Examination of Race 11 revealed that the left wing was structurally damaged, and the left main landing gear structure was compressed upward through the wing structure.

Multiple recorded videos of the accident were provided by various witnesses located on the taxiway or the ramp.

One video, captured from a vehicle located on the taxiway adjacent to the third row of airplanes, revealed that a golf cart with a red flag attached to the back of it, drove from the runway edge into the rocky infield between the runway and taxiway to an area abeam the second row about 13 seconds prior to the race start. A flagger, standing near the edge of the runway, was observed raising a white flag and moving it downward, signaling the start of the race to the third row 3 seconds later. As the third row of airplanes began their takeoff sequence, the car began moving forward, abeam the third row of the airplanes. The video showed that at the time of the impact between Race 1 and Race 11, the golf cart that had the red flag attached to the back of the seating area was parked in the rocky infield, and the flag remained attached to the golf cart. Shortly after, the video panned forward briefly, providing view of the truck, where the race starter was positioned. No flags were observed being displayed at the race starters truck.

Onboard video from Race 1, revealed that the camera was mounted in the forward area of the cockpit, providing video of the pilot, and surrounding runway environment, including the third row of airplanes and flaggers adjacent to the third row. About 4 seconds from the start of the video, the engine was heard running erratically. At 11 seconds, the pilot was observed looking to his right and began shutting down the engine along with starting to open the canopy 2 seconds later. Between 16 and 17 seconds, the canopy was opened. At the same time, a flagger was observed on the ramp side of the runway, dropping a white flag, signaling the start of the race to the third row. At 25 to 26 seconds, airplanes were observed passing on both the left and right side of his position, followed by the left wing and landing gear of Race 11 colliding with the empennage and right wing of Race 1 about a second later. It was noted that during the 10 seconds from the canopy opening to the time of the collision, Race 11 was observed drifting slightly left during the takeoff roll.

Onboard video from Race 11, revealed that the camera was mounted behind the pilot's left shoulder, providing a view of the left side of the engine cowling, left wing, small portion of the left side of the cockpit and instrument panel, along with the left side of the runway, which included Race 69. About 1 minute after the start of the video, Race 11 and Race 69 were observed starting their takeoff roll. About 11 seconds later, the left wing was observed striking Race 1. During the 11 seconds of the takeoff roll, Race 11 was observed drifting slightly left.

The International Formula One Procedure Rules, revision R2, dated January 2007, outlined the start procedures as the following:

1. The red flag will come up at T-5 minutes. It will be replaced by the green flag at T-10 seconds. Drop of the green flag signals the start of the race.

2. The race starts when the starter's flag drops. The starting time for all aircraft will be taken from the time the first aircraft crosses the start line, in flight, after the scatter lap.

3. Premature starts within 5 seconds will be penalized 30 seconds but the race will not be stopped. Starts earlier than 5 seconds will result in disqualification.

4. All rows will launch simultaneously. Anyone aborting take-off will abort straight ahead and attempt to clear to the end of the runway expeditiously.

There was no additional guidance outlining abort procedures in the event of a rough running engine prior to the start of the race.

According to the Director of Operations of the International Formula One organization, three briefs were conducted the morning of the accident. The third brief, which was held at the end of the runway, covered various items including positioning of the airplanes for the takeoff grid, startup procedures, and abort procedures. The Director of Operations stated that they discussed with the pilots that once the green flag drops, if the pilots are experiencing engine trouble they were instructed to hold their line on the takeoff grid and roll out [to the end of the runway]. 

Pilot Information

Certificate: Airline Transport
Age: 44, Male
Airplane Rating(s): Multi-engine Land; Single-engine Land
Seat Occupied: Center
Other Aircraft Rating(s): Helicopter
Restraint Used: 4-point
Instrument Rating(s): Airplane
Second Pilot Present: No
Instructor Rating(s): None
Toxicology Performed: No
Medical Certification: Class 1 Without Waivers/Limitations
Last FAA Medical Exam: 09/08/2016
Occupational Pilot: Yes
Last Flight Review or Equivalent:
Flight Time: 

Aircraft and Owner/Operator Information

Aircraft Make: REBERRY BRIAN
Registration: N913FT
Model/Series: 3M1C1R NO SERIES
Aircraft Category: Airplane
Year of Manufacture: 2011
Amateur Built: Yes
Airworthiness Certificate: Experimental
Serial Number: 013
Landing Gear Type: Tailwheel
Seats: 
Date/Type of Last Inspection: Unknown
Certified Max Gross Wt.:
Time Since Last Inspection:
Engines: Reciprocating
Airframe Total Time:
Engine Manufacturer: Continental
ELT: Not installed
Engine Model/Series: O-200-D
Registered Owner: Hot Stuff Air Racing
Rated Power:
Operator: On file
Operating Certificate(s) Held: None 

Meteorological Information and Flight Plan

Conditions at Accident Site: Visual Conditions
Condition of Light: Day
Observation Facility, Elevation: KRNO, 4410 ft msl
Distance from Accident Site: 12 Nautical Miles
Observation Time: 1755 UTC
Direction from Accident Site: 153°
Lowest Cloud Condition: Clear
Visibility:  10 Miles
Lowest Ceiling: None
Visibility (RVR):
Wind Speed/Gusts: 4 knots /
Turbulence Type Forecast/Actual: /
Wind Direction: 190°
Turbulence Severity Forecast/Actual: /
Altimeter Setting: 30.19 inches Hg
Temperature/Dew Point: 23°C / 1°C
Precipitation and Obscuration: No Obscuration; No Precipitation
Departure Point: Reno, NV (RTS)
Type of Flight Plan Filed: None
Destination: Reno, NV (RTS)
Type of Clearance: None
Departure Time:  PDT
Type of Airspace: Class G

Airport Information

Airport: RENO/STEAD (RTS)
Runway Surface Type: Asphalt
Airport Elevation: 5050 ft
Runway Surface Condition: Dry
Runway Used: 08
IFR Approach: None
Runway Length/Width: 7608 ft / 150 ft
VFR Approach/Landing: None 

Wreckage and Impact Information

Crew Injuries: 1 Minor
Aircraft Damage: Substantial
Passenger Injuries: N/A
Aircraft Fire: None
Ground Injuries: N/A
Aircraft Explosion: None
Total Injuries: 1 Minor
Latitude, Longitude:  39.664444, -119.891111

NTSB Identification: WPR16LA185A
14 CFR Part 91: General Aviation
Accident occurred Sunday, September 18, 2016 in Reno, NV
Aircraft: HOOVER DAVID ARNOLD AR 6, registration: N616DH
Injuries: 1 Minor, 1 Uninjured.

NTSB Identification: WPR16LA185B
14 CFR Part 91: General Aviation
Accident occurred Sunday, September 18, 2016 in Reno, NV
Aircraft: REBERRY BRIAN 3M1C1R, registration: N913FT
Injuries: 1 Minor, 1 Uninjured.

This is preliminary information, subject to change, and may contain errors. Any errors in this report will be corrected when the final report has been completed. NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

On September 18, 2016, about 1118 Pacific daylight time, a tailwheel equipped experimental amateur built (EAB) Hoover Arnold AR-6, N616DH, struck a tailwheel equipped EAB Reberry 3M1C1R, N913FT, during takeoff roll on runway 8 at the Reno-Stead Airport (RTS), Reno, Nevada. The airline transport pilot, sole occupant of the AR-6 was not injured and the airline transport pilot, sole occupant of the 3M1C1R, sustained minor injuries. The AR-6 was registered to the pilot and was operating as Race 11. The 3M1C1R was registered to Hot Stuff Air Racing LLC., Kissimmee, Florida, and was operated as Race 1. Both airplanes were operated by the pilots under the provisions of Title 14 Code of Federal Regulations Part 91 as an air race flight, which were originating at the time of the accident. Visual meteorological conditions prevailed and no flight plan was filed for either airplane.

The pilot of Race 11 reported that he was positioned in the middle of the back row of the staggered start sequence for the Formula 1 Race. When the green flag dropped he initiated his takeoff roll and that as the tail of his airplane came up, he observed Race 1 stationary on the runway at his 12'oclock position. He swerved in an attempt to avoid the airplane, however, subsequently collided with Race 1.

The pilot of Race 1 reported that he was in the number four position (middle row, center) in the starting grid, which was the middle inside position with three aircraft ahead of him in the front row, one airplane to his right, and three airplanes behind his position. The pilot reported that about 20 seconds before the green flag dropped, the engine was not running correctly and he shut it down and signaled the starters to halt the start/takeoff process. Shortly after, Race 11 struck Race 1.

Postaccident examination of Race 1 revealed that the upper portion of the rudder and vertical stabilizer were separated. Multiple propeller slash marks were observed on the right wing, which was partially separated from the fuselage.

Examination of Race 11 revealed that the left wing was structurally damaged and the left main landing gear structure was compressed upward through the wing structure.

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