N152RB

HISTORY OF FLIGHT

On August 26, 2012, about 0946 Mountain Daylight Time, a Eberle Fokker DR.1, tri-plane, Experimental Amateur-Built airplane, N152RB, owned by a private individual and operated by an Airline Transport Pilot, was substantially damaged when it departed controlled flight and impacted terrain two miles northeast of Parker, Colorado. The pilot, the sole person on board the airplane was seriously injured. Visual meteorological conditions prevailed and no flight plan was filed for the personal flight being operated under the provisions of 14 Code of Federal Regulation Part 91. The cross-country flight originated at Centennial Airport (APA), Englewood, Colorado, about 0941 MDT, and was en route to the Platt Valley Airpark, Fort Lupton, Colorado.

Centennial Airport Air Traffic Control Tower recordings indicated that at 0937:49, the pilot requested and received taxi clearance to runway 17L. At 0940:14, the pilot received clearance for takeoff on runway 17L and an eastbound departure.

At 0942:41, Federal Aviation Administration, Denver Terminal Air Traffic Control Center radar showed the airplane’s 1200 transponder code track parallel to and slightly east of APA runway 17L at 6,200 feet msl. The field elevation at APA was 5,885 feet msl. The airplane made a left turn to an approximate heading of 095 degrees and proceeded on an easterly heading at a groundspeed of about 93 knots. The radar data showed the airplane make a gradual climb to 6,700 feet. At 0946:10, the radar track and altitude showed the airplane initiate a descending left turn. At 0946:18, the radar track stopped over the location where the airplane impacted the ground. The airplane was at 6,400 feet when the radar track stopped. At 0946:31, the target disappeared from radar. The terrain elevation at the accident site was 6,170 feet msl.

A witness who lived in a house at the end of a cul-de-sac near the accident site, heard the airplane heading toward their house. He said that he and his wife went outside to see the airplane just as it was going over. The airplane was traveling west to east and was “probably a couple of hundred feet up”. He said the airplane was yawing to the left as it went over. The witness lost sight of the airplane and went around the house to see the airplane. As he got around the garage, he saw the airplane in a left spiral; about 45 degrees nose down, descending toward the ground. The witness said he lost sight of the airplane when he turned to tell his wife to call 9-1-1. The witness then grabbed a fire extinguisher and went to the accident scene. He said that when the fire and rescue persons arrived, he observed a fire fighter move the airplane’s throttle back to idle and turn off all of the switches in what was left of the airplane’s cockpit.

The wife said that she was in the house when her and husband heard the airplane approach from the west. She said it sounded like it was low to the ground. They went outside to see it. She could hear the airplane’s engine. It sounded normal. She said that when she saw the airplane go over her house, it appeared as if it were being pushed to the south. When she went back inside the house to call 9-1-1, she said she could see the airplane on the ground in the distance.

The pilot was interviewed on March 4, 2013, following seven months of healing and physical therapy. The pilot could not recall any of the events of that day and said that the first thing he did remember after the accident was waking up in the hospital.

AIRCRAFT INFORMATION

The airplane was a full-scale replica of a World War I, German Fokker DR.1 tri-plane. It was painted red and affixed with insignia so as to resemble the airplane flown and made famous by the German ace fighter pilot, Baron Manfred Von Richtofen, also known in history as the Red Baron. The owner normally had the airplane on static display with other World War I replica airplanes at the Vintage Aero Flying Museum on the Platt Valley Airpark. The single-seat, three wing airplane, serial number 20936, was manufactured in 1978 and had an airworthiness certificate classifying it in the experimental amateur-built category.

The airplane was powered by one Lycoming IO-360-B4D fuel-injected engine rated at 180 horsepower at 2,800 rpm.

The airplane's tachometer read 638.38 hours at the accident site. A maintenance status board in a hanger at the Platt Valley Airport showed the airplane was due its next condition inspection on October 1, 2012. The status board also showed its next oil change was due at 650 hours.

PERSONNEL INFORMATION

The pilot, age 60, held an Airline Transport Pilot certificate with single-engine land, multi-engine land, single-engine sea, and instrument ratings. According to the pilot's FAA medical records, on January 25, 2012, he reported having 19,650 total flying hours, and reported having flown 75 hours in the six months prior to the examination. According to the airplane’s owner, the pilot had about 150 total hours in the accident airplane.

The pilot held a second class medical certificate dated January 25, 2012. The certificate showed a restriction, [the] Holder shall possess glasses with correcting lenses for near vision while exercising the privileges of his airman certificate.

The pilot was given an NTSB Form 6120.1 Pilot/Operator Aircraft Accident/Incident Report to complete. However, it was not returned, and not pursued because of the distress the pilot showed when interviewed about the accident.

METEOROLOGICAL INFORMATION

At 0954, the Routine Aviation Weather Report for APA, about 5 miles west of the accident site, was wind 250 degrees at 7 knots, clear skies, 10 miles visibility, temperature 77 degrees Fahrenheit (F), dew point 44 degrees F, and altimeter 30.21 inches of Mercury.

WRECKAGE AND IMPACT INFORMATION

The National Transportation Safety Board on scene investigation began at 1200 MDT. The accident site was located at the top of a knoll in a rolling cow pasture approximately 1,500 feet east of a cul-de-sac in a rural residential area about two miles northeast of the downtown area of Parker.

The accident scene consisted of the airplane main wreckage to include the engine, propeller, cockpit, fuselage, top, middle, and bottom wings, main landing gear, empennage, and tail wheel.

The airplane rested upright and was oriented on a 135-degree heading. A three foot long, eight inch wide and 10 inch deep impact crater was located beneath the airplane's engine and propeller. Broken pieces of the airplane's forward fuselage, and the three faux redial engine cylinders were located in and around the crater. About 30 inches aft of the impact crater was an I-shaped impression in the ground which was consistent with the leading edge of the main landing gear foil and axle, and the two main gear tires.

The airplane's ring cowling was broken circumferentially at the attachment screws. It was located about three feet in front of the airplane and impact crater. The front of the cowling was split around the opening for the engine crankshaft. The top front of the cowling was crushed and chipped.

The airplane's two blade propeller showed one blade undamaged and the other blade bent aft about 45 degrees at the hub and bent forward about 30 degrees 18 inches from the blade tip. The bent blade showed leading edge polishing along the blade span.

The airplane's engine was bent downward and pushed aft. The firewall was bent aft and upward. The fuel tank was crushed upward and broken. It was punctured at the bottom. The smell of fuel was prevalent in and around the fuel tank and beneath the airplane.

The cowling and forward fuselage around the engine was broken down and fragmented. The cockpit floor was crushed upward. The seat, lapbelt and shoulder harnesses were intact. The cockpit walls were bent and broken outward and down. The instrument panel was broken forward and fragmented. The windshield with the faux machine guns was broken aft.

The top wing was broken at mid-span. The left top wing was broken down and aft. The left aileron was intact. The push-pull tube running from the mixer was broken at the fuselage just forward of the cockpit. The right aileron was also intact and its push-pull tube was also broken at the fuselage forward of the cockpit. Flight control continuity to both ailerons was confirmed. The left middle wing was broken downward at the wing root. The outboard strut was broken outward and aft. The left bottom wing was broken upward at the wing root. The outboard three feet of the left bottom wing was broken upward. The outboard wing strut between the bottom and middle wing was broken aft.

The right middle wing was broken downward. The outboard strut was broken downward and aft. The right bottom wing was intact. The outboard strut between it and the middle wing was broken down and aft.

The main landing gear struts we're bent aft and crushed upward. The airfoil covering the wheels' axle was crushed upward and aft. Both main wheel rims, spokes, and caps we're bent aft. The tires remained intact.

The fuselage aft of the cockpit was broken down and twisted 10 degrees counter clockwise. The empennage and tail wheel showed no damage. Control continuity from the control stick to the elevator and the rudder pedals to the rudder was confirmed.

The airplane wreckage was retained for further examination.

TESTS AND RESEARCH

The airplane was examined at Fort Lupton, Colorado on September 4, 2012. The fuel selector was positioned on. The fuel boost pump was removed and powered up and worked normally. The engine driven fuel pump was removed, examined and worked normally. Fuel was found in the fuel line to the pump. The fuel screen was removed and examined. It was wet with fuel and clean. The throttle body was removed and examined. Continuity from the throttle and mixture controls was confirmed. Fuel was present in the throttle body and the lines into the unit. The magnetos were removed and examined. ...