Thursday, October 11, 2012

Corkum Reginald Lightning, N290AL: Accident occurred October 11, 2012 in Chuckey, Tennessee

National Transportation Safety Board - Aviation Accident Final Report: http://app.ntsb.gov/pdf 

Docket And Docket Items -  National Transportation Safety Board:   http://dms.ntsb.gov/pubdms

National Transportation Safety Board  -  Aviation Accident Data Summary: http://app.ntsb.gov/pdf

NTSB Identification: ERA13FA017
14 CFR Part 91: General Aviation
Accident occurred Thursday, October 11, 2012 in Chuckey, TN
Probable Cause Approval Date: 03/24/2014
Aircraft: ARION LIGHTNING, registration: N290AL
Injuries: 1 Serious,1 Minor.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

The experimental amateur-built airplane accelerated normally during the takeoff roll for the Phase 1 test flight before pitching up sharply and beginning a slow climb to about 50 to 60 feet above the ground. The wings rocked back and forth as it drifted off the left side of the runway. Witnesses reported that the airplane appeared out of control and off center. The airplane was heading toward trees and a residence when the pilot-rated passenger, who was on board to record information during the test flight, took control of the airplane, lowered the nose, and turned away from obstructions; however, the nose abruptly dropped and the airplane struck the ground. Postaccident examination of the airplane did not reveal any preimpact malfunctions or failures that would have precluded normal operation. The flaps were found in the fully extended position and, given reports of the airplane’s behavior after the takeoff, were likely fully extended during takeoff and at the time of impact. The owner/builder reported that the normal takeoff procedure called for a 10-degree flap setting and that the airplane did not have a pretakeoff checklist, which would be developed during the flight testing. An estimated weight and balance calculation for the accident flight placed the airplane about 30 pounds over its published maximum gross weight and about a 1/2 inch from its aft center of gravity limit; however, the maximum gross weight is about 75 pounds below the general specifications listed by the kit manufacturer. The owner and pilot-rated passenger stated that they did not discuss or perform weight and balance calculations before the accident flight.


The airplane had been operated for about 15 hours since new and since its most recent condition inspection, which was performed about 1 month before the accident. The pilot’s total flight experience in make and model consisted of about 3 hours with a flight instructor and about 4 hours of solo flight experience. Given the lack of a pretakeoff checklist and the pilot’s minimal flight experience in the airplane make and model, it is likely that he began the takeoff with flaps fully extended, which combined with the airplane’s high gross weight and near-limit aft center of gravity, resulted in the loss of airplane control.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:
The pilot’s inadequate preflight planning, which resulted in an attempted takeoff at a high gross weight, near the limit of its aft center of gravity, and with the airplane incorrectly configured with fully extended flaps. Contributing to the accident was the lack of a pretakeoff checklist and the pilot’s lack of total flight experience in make and model.

HISTORY OF FLIGHT

On June 22, 2013, at 1247 eastern daylight time, a Boeing IB75A, N450JW, impacted terrain at the Dayton International Airport (KDAY), Dayton, Ohio. The commercial pilot and wing walker were both fatally injured. The airplane was destroyed. The airplane was registered to a private individual and operated by Jane Wicker Airshows under the provisions of 14 Code of Federal Regulations Part 91 as an airshow performance. Visual meteorological conditions prevailed for the flight, which operated without a flight plan. The local flight originated from KDAY about 1235.

The flight was performing for the 2013 Vectren Dayton Air Show, which was located at KDAY. The performance was the fourth act scheduled on June 22. Video and photos submitted by spectators, who witnessed the accident, captured the airplane during the performance. The evidence showed the airplane completed a left "tear drop" style turn as the wing walker positioned herself on the lower left wing. The airplane then rolled left to fly inverted. While flying from the southwest to the northeast in front of the spectators, the airplane's nose pitched slightly above the horizon. The airplane then abruptly rolled to the right and impacted terrain in a left wing low attitude. A post impact fire ensued and consumed a majority of the right wing and forward portion of the fuselage.

Statements gathered by the NTSB and Federal Aviation Administration (FAA) indicated that the pilot and wing walker had practiced the performance the day prior to the accident. Following the practice, neither the pilot nor the pilot-rated wing walker, reported any mechanical anomalies with the airplane to the air show crew.

PERSONNEL INFORMATION

Pilot

The pilot, age 64, held a commercial pilot certificate with ratings for airplane single engine land, airplane single engine sea, and glider. On August 30, 2012, he was issued a second class medical certificate with the restriction that he must wear corrective lenses. The pilot reported his use of Lisinopril and Triamterene to control hypertension with no reported side effects. On September 16, 2012, the pilot was issued a statement of acrobatic competency. He was authorized to perform solo aerobatics, fly wing walker maneuvers, and "circle the jumper." His altitude limitation was level 1 restricted and he was authorized to perform these events in all variants of the Extra 300, Boeing Stearman, and Pitts Special. A review of the pilot's log book revealed that the pilot had 1,190 hours, 95 hours in make and model, and about 11 hours in N450JW. The pilot did not log any flights from October 20, 2012, until April 13, 2013, which could be attributed to the air show off season. From April 13, 2013, he logged 16 hours of total time, 4.5 hours in make and model and about 1.5 hours in N450JW. The last airshow that the pilot performed with the accident wing walker was August 21, 2012.

The pilot practiced the aerial routine the day prior without incident. Members of the airshow crew ate dinner with the pilot the night prior, between 1900-2100. The pilot consumed about 1.5 beers with his meal. The pilot and crew went back to their hotel. They met the following morning from 0745-0830 the crew ate breakfast and the pilot ate a bagel with cream cheese. At 1100 the pilot ate lunch. Throughout the day the crew recalled that the pilot stayed out of the sun and was drinking water. Prior to flight, the pilot sat in an air conditioned truck for at least 10 minutes. Interactions with him where uneventful and his behavior was described as normal.

Wing walker

The wing walker, age 45, held a commercial pilot certificate for airplane single engine land, airplane multi-engine land, and instrument airplane. The wing walker had about 6 years of experience and had been performing the planned routine for the previous 3 years. The wing walker was also the owner of the accident airplane.

AIRCRAFT INFORMATION

The Boeing-Stearman IB75A, serial number 75-789 was manufactured in 1941 as a model A75N1. In 1950, modifications were made to the airplane and the model type changed to IB75A. A 450-horsepower Pratt & Whitney R-985-AN-1 fuel-injected engine drove a two bladed, metal, Hamilton Standard 2D30 propeller. On December 8, 2009, the pilot purchased the airplane and on May 3, 2010, the airplane was registered with the FAA under the experimental exhibition category. On September 26, 2011, the airplane was last registered under the restricted category for the purpose of wing walking. The airplane was modified with an inverted fuel and oil system, and a four aileron system.

A combined 100 hour and annual inspection were accomplished on April 23, 2013, at a tachometer time of 260.7 hours, and 597.5 hours since the engine's last major overhaul.

METEROLOGICAL INFORMATION

Weather at the time of the accident was wind from 220 degrees at 10 knots, visibility 9 miles, a broken ceiling at 3,500 feet, temperature 86° Fahrenheit (F), dew point 72° F, and a barometric pressure of 30.18 inches of mercury.

AIRPORT INFORMATION

The air show airspace was orientated along runway 6L/24R. The scheduled wing walking performance was flown by the accident pilot with events being performed by the wing walker. The designated airshow area was 12,000 feet long and 2,700 feet wide. The accident airplane was assigned to the Category III performance area which provided a 500 foot airspace buffer between the performance and the spectators. The wreckage came to rest over 500 feet from the fence line of the spectator area within the assigned performance area. A document depicting the airshow's layout is included in this report's docket.

The airport's elevation is 1,009 feet. Utilizing the barometric pressure, the pilot would have set about 29.09, in order to achieve "QFE" or a reading of 0 feet on the airplane's altimeter.

WRECKAGE AND IMPACT INFORMATION

The crash site was a grass area south of the intersection of taxiway R and taxiway Z. The debris field followed a 050° heading and was about 145 feet long. The first ground scars were two parallel scars consistent with the left wing's impact. About 40 feet from the beginning of the ground scars was the impact crater. The crater was 11 feet long, 6 feet wide, and at least 13 inches deep. The main wreckage came to rest 105 feet from the impact crater.

A postaccident examination of the airplane was conducted by the NTSB and FAA. Rudder and elevator control continuity was established from the rudder to the aft seat rudder pedals and the elevator to the control stick. The ailerons controls were broken and torn in multiple locations. The breaks and tear patterns were identified on each opposite surface. Thermal damage was sustained to the right aileron's connecting rod from the inboard connector to the outboard hinge. However, each of the rod ends remained attached and secured in their respective hinges.

The cockpit instrumentation sustained minor damage. The following readings, in part, displayed:
Altimeter: 300 feet
Kollmans window: 29.09
Manifold pressure: 30 inches
Tachometer hour: 284.9

The two metal propeller blades were labelled A and B for documentation purposes only. Blade A displayed leading edge polishing, nick and gouges, and chord wise scratches. From the blade's mid-span to the blade tip, the blade was curled rearward. Blade B displayed leading edge polishing, nicks and gouges, and chordwise scratches. The blade displayed an S-bend along its entire length. Cylinders number 2, 3, and 4 were found separated from the engine. No preimpact anomalies were detected with the airframe or engine.

MEDICAL AND PATHOLOGICAL INFORMATION

An autopsy was performed on the pilot by the Montgomery County Coroner's Office. The coroner ruled the cause of death as the result of multiple trauma. The manner of death was ruled an accident.

Forensic toxicology was performed on specimens from the pilot by the FAA Bioaeronautical Sciences Research Laboratory, Oklahoma City, Oklahoma. Testing was negative for presence of carbon monoxide and ethanol. Triamterene was detected in urine and blood. The pilot's use of triamterene was previously reported to the FAA.

TESTS AND RESEARCH

Accident sequence

Several videos and photographs were taken of the accident sequence by the airshow spectators. The description of the deflection of the flight controls are described using the airplane's upright orientation and the direction is not reversed when describing the flight control position when the airplane is inverted.

The accident maneuver began with the pilot climbing up and away from the crowd in order to allow the wing walker to position herself under the right lower wing. During the maneuver, the airplane is turned and aligned parallel to and behind the Category III show line. The accident sequence climb out was gradual as the airplane completed the teardrop maneuver and turned to position along the show line. At 8 seconds prior to impact, the airplane pitched nose up and began a left roll. As the airplane rolled left through 45°, the pilot applied right rudder and the rudder would remain deflected right throughout the accident sequence. At 6 seconds prior to impact, the airplane rolled through 90°, the airplane's elevator is near neutral with a slight deflection downward toward the "nose-down" position, and the rudder deflected right. The airplane did not reach a completely inverted positions and stops turning about 150°. At 2 seconds prior to impact and nearly inverted, the ailerons deflect to command a right roll and the elevator deflects upward, trailing edge up relative to the fuselage. The airplane pitched toward the ground and begins a descending right roll. The control inputs continued as the airplane collided with terrain.

Video study

A study of videos submitted to the NTSB was conducted in order to better under the airplane's flight parameters prior to the accident. Of the numerous videos submitted, five were selected for the study based on their location, duration, and image quality. The accident maneuver began with the airplane flying away from the crowd to the west in a climbing teardrop turn to align itself with show line parallel to runway 6L. As the airplane turned toward the crowd it began descending. The wing walker was hanging inverted by her legs from the leading edge of the lower left wing. About 9 seconds prior to the accident the airplane pitched up and rolled left. The airplane passed through 90° of roll about 6 seconds prior to the accident; a still image captured the airplane with a slightly trailing edge down elevator position. The airplane continued its roll until it was nearly inverted, but stopped at 156°or 24° short of fully inverted flight. The wing walker remained seated on the leading edge of the lower right wing. About 1.86 seconds prior to the accident, an extracted frame from a video showed the elevator was in a neutral position and the rudder was deflected trailing edge right. The airplane's flightpath prior to the right roll was toward hangers and in the proximity of a parked Boeing 757. About 1.40 seconds prior to the accident with the airplane still nearly inverted, the elevator deflected trailing edge up with the rudder still deflected trailing edge right. The airplane then pitched toward the ground at an estimated rate of 55° per second. About 0.10 second later, the aileron on the lower left wing was deflected trailing edge down and the airplane rolled to the right as it pitched toward the ground. The positions of the other ailerons were not visible in the frame. During the final 2 seconds, the airplane's groundspeed reduced from about 106 knots to 84 knots.

Airspeed Calculations

The video study indicated that the ground speed during the final maneuver slowed from 106 knots to 84 knots. Correcting for the prevailing wind, the true airspeed decreased from about 96 to 74 knots and the calibrated airspeed decreased from about 92 knots to 71 knots (106 mph to 82 mph). Of note, the maneuver's target airspeed is reported to be 110 mph.

ADDITIONAL INFORMATION

Planned "On Top of the World" maneuver

The wing walker's ex-husband was one of her regular pilots and was very familiar with the accident routine. He estimated that he flew the maneuver with the wing walker between 300-350 times. He stated the accident maneuver flown follows a maneuver where the wing walker is suspended by her ankles at the end strut. At the end of the pass she repositions herself on the wing for the next maneuver. The pilot flies a 270° re-positioning turn. The re-positioning turn has two purposes: position to perform in front of the crowd's field of view and gain altitude to aid in picking up speed for the maneuver's entry. During the turn the airspeed is reduced between 70-80 mph indicated airspeed to reduce the airflow against her body as she moves along the wings. After completing the turn and the wing walker sitting in position, the pilot notifies the wing walker that he is beginning the maneuver. The pilot adds engine power, dives the airplane down, and the wing walker extends her body beneath the wing. The airplane's is dived to reach a minimum of 100 mph before the pilot pitches the nose of the airplane between 25-30° nose high and rolls inverted. The airplane should stabilize inverted, wings level at 110 mph and 150 feet AGL. Engine power is reduced to about 1/3 throttle setting, which maintains the 110 mph and allows a margin of power sufficient to climb inverted if needed. To exit the maneuver, the pilot pushes the stick forward to get the airplane's nose above the horizon and the airplane is rolled to the left. The left roll ensures that the wing walker's body remains in a positive G condition, and therefore in contact with the wing throughout the maneuver.

Review of the accident maneuver

The ex-husband/regular pilot was not in attendance at the airshow, and was provided video to review the accident sequence. When asked about to review the maneuver flown on the day of the accident, he stated that he has never seen the accident pilot fly that way and had never seen the planned maneuver flown in that manner. He described the re-position turn as shallow with little climb. In addition, the airplane didn't appear to gain much airspeed. When repositioned for the maneuver, the airplane was not dived at a steep angle to gain airspeed and the wing walker began extending later than normal. The airplane pitch up was lower than normal and as the pilot rolled towards the inverted position, the airplane never got inverted. The airplane's roll toward inverted was stopped short of expected and appeared to stop with bank taking the airplane towards the crowd line. The airplane seems to have a predominant sink rate throughout the maneuver and the pilot likely pushed forward stick to arrest the sink rate, but this would have altered the flight path more towards the crowd line. During the maneuver, there was a moment when the regular pilot perceived that the airplane's descent was arrested and the airplane was tracked level. He described this condition as key to an aerobatic pilot since the airplane is in a stable condition. To exit the inverted maneuver, a pilot should apply power and either perform a climb away from the ground, or allow for enough energy for a coordinate turn. He described the pilot's next action as a reversed right turn which appeared to be a quick, "knee-jerk" reaction. He theorized that the pilot may have been "spooked" perhaps by a potential collision conflict with a parked airplane on the ramp or other obstruction. The pilot rolled right and pulled back on the stick to perform a "dish out" maneuver, but performed this maneuver into the ground.

Perceived collision potential

On the day of the accident, there was a parked Boeing 757-200 on runway 36/18 adjacent to the intersection of taxiway C and taxiway V, over 700 feet behind the spectator line. The height to the top of the fuselage is 20 feet, 7 inches and the height to the top of the vertical stabilizer is 44 feet, 6 inches. The 757 was parked about 0.3 miles east-southeast of the accident site. In addition, about a 1/2 east-southeast to south of the accident site, there were several aircraft hangers and buildings ranging in heights from 35-50 feet.

Crew prebrief

During the morning prebrief, a crew member overheard the wing walker talking with the pilot. She commented that the pilot did not reduce power enough prior to her getting into positions around the wings. The crew member commented that the pilot listened closely and appeared to be deep in thought after the conversation.

Emergency Response

Due to a prior accident in 2007, aircraft rescue and firefighting (ARFF) vehicles were prepositioned for a quick response to an emergency. On the day of the accident, two ARFF vehicles were prepositioned, one at taxiway M near the terminal apron (vehicle 22) and one at the intersection of taxiway V and C (vehicle 23). About 1 minutes and 5 seconds after the accident, vehicle 23 arrived on scene and began firefighting efforts. The main fire was extinguished within 20 seconds. Vehicle 22 arrived on scene 1.5 minutes later to provide assistance.



http://registry.faa.gov/N90AL

NTSB Identification: ERA13FA017 
14 CFR Part 91: General Aviation
Accident occurred Thursday, October 11, 2012 in Chuckey, TN
Aircraft: Arion Lightning, registration: N290AL
Injuries: 1 Serious,1 Minor.

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 either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.


 
On October 11, 2012, about 1350 eastern daylight time, an experimental amateur-built Arion Lightning, N290AL, operated by a private individual, was substantially damaged when it impacted the ground during takeoff from Hensley Airpark (04TN), Chuckey, Tennessee. The commercial pilot was seriously injured and a pilot-rated passenger sustained minor injuries. Visual meteorological conditions prevailed and no flight plan had been filed for the local personal flight that was conducted under the provisions of Title 14 Code of Federal Regulations Part 91.

The airplane was based in a residential aviation community at 04TN.

The owner\builder of the airplane reported that it was purchased as a kit 3 or 4 years ago and he took it to the Arion Lightning factory, Shelbyville, Tennessee, to participate in a builder assist program over the summer. The airplane was issued a Federal Aviation Administration (FAA) special airworthiness certificate on September 14, 2012, and was flown for about 20 hours in Shelbyville, before returning to 04TN, about 1 week prior to the accident.

The airplane’s operations limitations called for the airplane to be flown for 40 hours for Phase 1 flight testing. On the day of the accident, the pilot, who was a friend of the owner/builder, was planning to conduct a local flight to practice maneuvers such as slow flight and stalls, while the passenger recorded information during the flight. A preflight check of the airplane’s fuel level revealed about 15.5 gallons.

Witnesses observed the airplane taking off from runway 1, a 2,900-foot-long, 50-foot-wide, asphalt runway. Several witnesses reported that the airplane’s engine sounded as if it was developing full power, and the nose gear lifted off the runway, then settle back onto the runway, before the airplane "pitch-up sharply." The airplane began to slowly climb, with its wings "wobbling" back and forth, and it drifted to the left of the runway. One witness stated that the airplane looked "slow" and was in nose high attitude when its right wing dipped, struck the ground, and the airplane cartwheeled.

The passenger reported that the airplane lifted off the runway, slowly climbed to an altitude of about 50 to 60 feet and was "wallowing." The airplane had drifted off the left side of the runway and was near trees and a residence when he elected to assume control of the airplane, which the pilot relinquished. The passenger started a right bank toward an opening in the tree line; however, shortly thereafter, the airplane’s nose abruptly dropped to 45 to 60 degrees, and the airplane struck the ground.

The airplane came to rest on a heading of about 250-degrees, on the grass, about 150-feet left of and just prior to the northern end of the runway. A ground scar was observed about 100-feet south of the main wreckage. All major portions of the airplane were accounted for at the accident site. The canopy and the portion of the fuselage forward of the cockpit seats were separated and the left and right wing assembly was canted downward about 45-degrees. The nose gear and engine were located about 25 feet south of the main wreckage.

Initial examination of the airframe and engine did not reveal any mechanical malfunctions that would have precluded normal operation. The airplane’s flaps were observed at or near the fully-extended position of 40-degrees, which was consistent with the position of the flap actuator. The passenger reported that the flaps were in the retracted position during taxi and he did not recall the pilot adding flaps prior to the flight.

The airplane was equipped with a Grand Rapids Technologies, electronic primary flight instrument, which was forwarded to the NTSB Vehicle Recorders Division, Washington, DC for data download.


 


GREENE COUNTY, Tenn. -  Two people were sent to the hospital after the plane they were flying crashed in Greene County, Tennessee.

An airplane that's made for the sky ends in complete destruction on the ground in Greene County, Tennessee.

"When I arrived on scene, I had a small, single-engine, two-passenger aircraft that had taken off," said Robert Sayne, the Greene County EMS director.

We learned the crash happened around 2:00 Thursday afternoon inside the the fly-in community of Hensley Airpark off Chuckey Pike.

Sayne told us it appears there was a mechanical problem shortly after take-off.

"There was some type of problem with the aircraft, and it immediately started coming back down, and they were able to crash it into an open field next to the runway," Sayne added.

Sayne confirms the passengers of the experimental plane are 66-year-old Jack Cooper and 50-year-old Marcel Bravo. He said it's unclear who was flying.

Sayne told us crews had to contain a small fuel leak, and both men were taken to the hospital one of them with a serious back injury.

Nearby resident Trish Carter told me she heard some of the chaos and knew one of the passengers.

"There was all kinds of sirens and everything," said Carter. "I was scared, because I don't want anybody to be hurt. My understanding is they had worked on the plane and were just test driving it."

The plane crashed just about 50 yards away from a residential home, leaving emergency workers thankful it wasn't worse.

"I think they took a lot of care in making sure that they put the aircraft where they put it at," said Sayne.

"I'm just thankful it didn't hit any of those [homes], because there could've been some fatalities, because it would've been awful," said Carter.

We checked with Johnson City Medical Center officials and learned both men were in stable condition.  We also found out members of the NTSB and the FAA are likely to be on site Friday to investigate.

Update at 10:23 p.m.: We just found out that Jack Cooper, the pilot of the plane, is listed in critical condition at Johnson City Medical Center. A hospital spokesman said passenger Mark Bravo is not a patient at the facility. 

 CHUCKEY –– A plane carrying two passengers crashed near the runway at Hensley Airpark Thursday, according to a crash report from the Greene County Sheriff’s Department. One man was reportedly critically injured.

According to the report, the pilot, Jack Cooper, 50, 101 Kitty Hawk, and his passenger Marc Bravo, 50, 275 Mitchell Road, were in the plane, which did a run on the south end of the runway around 2 p.m. It then turned around and started to take off on the north end.

Gene Cutman told the sheriff’s department that he saw the plane go to the left of the runway and take off, but said it looked as if the pilot did not have control of the aircraft. The plane crashed in a field left of the runway, the report said.

Cooper was listed in critical condition Thursday night at Johnson City Medical Center.

Information on Bravo’s condition was unavailable.

GREENE COUNTY, Tenn. -    UPDATE 6:11 p.m.: The men involved in the crash have been identified as 66-year old Jack Cooper and 50- year old Marcelino Bravo.

UPDATE 3:56 p.m.: A spokesperson for Johnson City Medical Center said both patients are listed in stable condition.

The Greene County Sheriff's Department said an experimental plane crashed on Chuckey Pike around 2 p.m. Thursday.

Robert Sayne, the Director of the Greene County Emergency Management, said the plane had taken off and was coming back around to land in the fly-in community when something went wrong with the controls.

The plane crashed in a grassy area near the runway.

Sayne said two people were taken to Johnson City Medical Center. One person with serious back injuries and the other person had scrapes and bruises.

The crash is under investigation.

CHUCKEY — An experimental plane crashed on takeoff at about 2 p.m. this afternoon at Hensley Airpark.

According to airstrip owner Ted Hensley, two persons were injured in the crash.

Transported to Johnson City Medical Center were pilot Jack Cooper and passenger Marc Bravo, both residents of the airport community.

The two men were listed in stable condition late Thursday afternoon.

According to a witness, Donnie Shipley, the pilot was heading south on the runway, turned around to head north to take off and then veered off the runway while taking off.

The aircraft crashed on the left of the runway in a field, Greene County Sheriff’s Deputy Ben Stewart said he was told.

“We’ve never had anything serious before,” said resident Virginia Merrill.


Hensley Airpark is on Skyway Drive off Chuckey Pike.