ASN Wikibase Occurrence # 186907
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Date: | Saturday 30 April 2016 |
Time: | 16:15 |
Type: | Aeronca 7AC Champion |
Owner/operator: | Private |
Registration: | N85510 |
MSN: | 7AC-4250 |
Year of manufacture: | 1946 |
Total airframe hrs: | 3715 hours |
Engine model: | Continental C85-12F |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Dillant-Hopkins Airport (KEEN), Keene, NH -
United States of America
|
Phase: | Landing |
Nature: | Private |
Departure airport: | Keene, NH (EEN) |
Destination airport: | Keene, NH (EEN) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative: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.
Probable Cause: 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.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | ERA16LA174 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB
FAA register:
http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?nNumberTxt=85510 FAA register:
http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?nNumberTxt=85510 Location
Revision history:
Date/time | Contributor | Updates |
02-May-2016 14:09 |
Geno |
Added |
02-May-2016 14:59 |
Geno |
Updated [Aircraft type, Registration, Cn, Operator, Source] |
02-May-2016 17:02 |
Geno |
Updated [Aircraft type, Registration, Cn, Operator, Source] |
21-Dec-2016 19:30 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
19-Aug-2017 13:16 |
ASN Update Bot |
Updated [Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative] |
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