NTSB Identification: ERA16LA174
14 CFR Part 91: General Aviation
Accident occurred Saturday, April 30, 2016 in Keene, NH
Probable Cause Approval Date: 01/26/2017
Aircraft: AMERICAN CHAMPION AIRCRAFT 7AC, registration: N85510
Injuries: 2 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
The sport pilot of the tailwheel-equipped airplane had completed one touch-and-go landing uneventfully on a 6,201-ft-long, 100-ft-wide asphalt runway. During the second landing, the tailwheel began to "shimmy." Rather than apply forward control stick pressure to reduce weight on the tailwheel and alleviate the shimmy, the pilot held the control stick fully aft as the airplane departed the left side of the runway and impacted an approach path indicator light. Examination of the tailwheel locking mechanism revealed that it was worn and had unlocked during touchdown. The pilot should have been able to compensate for a tailwheel shimmy at touchdown by reducing the weight on the tailwheel. The condition of the tailwheel locking mechanism should have been checked during the last annual inspection; however, it is possible that the locking mechanism could have worn further during the 7 months between the most recent inspection and the accident flight.
The National Transportation Safety Board determines the probable cause(s) of this accident as follows:
The disengagement of the tailwheel locking mechanism during the landing roll due to wear, and a subsequent loss of directional control. Contributing was the pilot's inadequate remedial action, which resulted in a runway excursion.
On April 30, 2015, about 1615 eastern daylight time, an American Champion Aircraft 7AC, N85510, was substantially damaged while landing at Dillant-Hopkins Airport (EEN), Keene, New Hampshire. The sport pilot and passenger were not injured. The airplane was privately owned and operated. The personal flight conducted under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed and no flight plan was filed for the local flight, which originated from EEN about 1610.
The sport pilot reported that he had completed one touch-and-go landing uneventfully at EEN and was planning a second landing to a full stop. He performed a three-point touchdown on runway 2, a 6,201-foot-long, 100-foot-wide, asphalt runway. The pilot added that during the touchdown, he held the control stick completely aft, when the tailwheel began to "shimmy" and the airplane departed the left side of the runway. The airplane traveled over grass and impacted an approach light indicator, before coming to rest upright. The pilot further stated that the tailwheel on that particular model was supposed to remain locked during landing, but had unlocked at touchdown.
The sport pilot had accumulated a total flight experience of 115 hours; of which, 85 hours were in the same make and model as the accident airplane. He had flown 2.5 hours during the 90-day period preceding accident, and those hours were in the same make and model as the accident airplane.
The two-seat tandem, high-wing, tailwheel airplane was manufactured in 1946. It was powered by a Continental Motors, C-85, 85-horsepower engine. The airplane's most recent annual inspection was completed on September 19, 2015. At that time, the airplane had accumulated 3,715 total hours of operation. The engine had accumulated 2,345 total hours of operation; of which, 545 hours were since its last major overhaul. The airplane had flown about 7 hours from the time of the last annual inspection, until the accident.
Examination of the wreckage by a Federal Aviation Administration inspector revealed damage to the fuselage and right wing. The inspector also observed that the tailwheel locking mechanism appeared worn. The inspector added that the condition of the tailwheel locking mechanism should have been checked during the last annual inspection, but that the locking mechanism could have worn during the 7-month period from the time of the most recent annual inspection, until the accident.
The recorded weather at EEN, at 1615, included wind from 210 degrees at 7 knots, visibility 10 miles, and clear sky.
NTSB Identification: ERA16LA174
14 CFR Part 91: General Aviation
Accident occurred Saturday, April 30, 2016 in Keene, NH
Aircraft: AMERICAN CHAMPION AIRCRAFT 7AC, registration: N85510
Injuries: 2 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 April 30, 2015, about 1615 eastern daylight time, an American Champion Aircraft 7AC, N85510, was substantially damaged while landing at Dillant-Hopkins Airport (EEN), Keene, New Hampshire. The sport pilot and passenger were not injured. The airplane was registered to and operated by a private individual as a personal flight conducted under the provisions of 14 Code of Federal Regulations Part 91. Visual meteorological conditions prevailed and no flight plan was filed for the local flight, which originated from EEN about 1610.
The sport pilot reported that he had completed one touch-and-go landing uneventfully at EEN and was planning a second landing to a full stop. He performed a three-point touchdown on runway 2, a 6,201-foot-long, 100-foot-wide, asphalt runway. The sport pilot added that during the touchdown, he held the control stick completely aft, when the tailwheel began to shimmy and the airplane departed the left side of the runway. The airplane traveled over grass and impacted an approach light indicator, before coming to rest upright. The sport pilot further stated that the tailwheel on that particular model was supposed to remain locked during landing, but had unlocked at touchdown.
Examination of the wreckage by a Federal Aviation Administration inspector revealed damage to the fuselage and right wing. The inspector also observed that the tailwheel locking mechanism appeared worn.
The recorded weather at EEN, at 1615, included wind from 210 degrees at 7 knots, visibility 10 miles, and clear sky.
Monadnock Aviation manager Chris DeLaVergne relays information at the site of a small plane crash at Dillant-Hopkins Airport in Swanzey on Saturday afternoon. A strong crosswind during landing is thought to be the reason for the crash. Neither the pilot nor a passenger was injured, but the small plane was damaged.
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NORTH SWANZEY — A small plane had a rough — and likely expensive — landing at the Keene Dillant-Hopkins Airport Saturday afternoon.
Keene Fire Chief Mark F. Howard said the single-engine recreational aircraft was coming in from the south to land at the airport when it went off the west side of the main runway.
Two people were on the plane, but no injuries were reported, he said.
However, the plane took down at least five lights along the runway, which caused damage to the aircraft, he said.
He said airport staff were contacting the Federal Aviation Administration to report the crash.
Chris De LaVergne, a manager with Monadnock Aviation, said the plane sustained moderate damage, but it would be hard to determine if it was salvageable until a mechanic looked at it.
He said he couldn’t release information about who owns the plane, which was company policy.
Airport Manager John G. “Jack” Wozmak, in a phone message left Saturday evening, referred all inquires about the crash to the Federal Aviation Administration.
The crash was reported at 4:30 p.m.; members of the Keene and Swanzey fire departments responded to the scene.
Original article can be found here: http://www.sentinelsource.com
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