ASN Wikibase Occurrence # 211084
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| Date: | Tuesday 15 May 2018 |
| Time: | 09:45 LT |
| Type: |  Grumman American AA-1B |
| Owner/operator: | Private |
| Registration: | N6550L |
| MSN: | AA1B-0350 |
| Year of manufacture: | 1974 |
| Total airframe hrs: | 4126 hours |
| Engine model: | Lycoming O-235-C2C |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Butler County Regional Airport (KHAO), Hamilton, OH -
 United States of America
|
| Phase: | Take off |
| Nature: | Test |
| Departure airport: | Hamilton Airport, OH (HAO/KHAO) |
| Hamilton Airport, OH (HAO/KHAO) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
A Grumman American AA-1B airplane, N6550L, impacted terrain during a forced landing at the Butler County Regional Airport-Hogan Field (HAO), near Hamilton, Ohio, following a loss of engine power. The private pilot, who was the sole occupant, sustained serious injuries. The airplane received substantial wing and fuselage damage.
About 1 month before the accident, the prior owner of the accident airplane performed a maintenance test flight after an engine replacement. The airplane failed a run-up because of engine roughness. The mechanic/accident pilot who performed the engine replacement felt that the roughness was caused by oil getting by the new piston rings and fouling the spark plugs. The mechanic/pilot cleaned and reinstalled the plugs.
The maintenance test flight was then reattempted, and the prior owner flew in the right seat with the mechanic/pilot as the pilot flying. The prior owner indicated that the mechanic/pilot took the active runway without completing an engine run-up. The takeoff power appeared normal until about 100 ft above ground level, when the engine failed abruptly and without warning. The airplane's nose dropped, and the pilot landed the airplane, stopping it about 30 ft from the end of the runway.
The mechanic/pilot subsequently sent the carburetor out for overhaul. After reinstalling the carburetor, the mechanic/pilot attempted another maintenance test flight, which was the accident flight. Witnesses stated that the airplane took off; they heard the engine stop, and the pilot attempted to circle back to the airport but did not make it. The airplane impacted terrain during the landing, which resulted in substantial damage to the wing and fuselage.
Probable Cause and Findings
The loss of engine power during takeoff for reasons that could not be determined because postaccident examination revealed no evidence of mechanical malfunctions or failures that would have precluded normal operation.
Accident investigation:
 |
|
Sources:
https://www.wcpo.com/news/local-news/butler-county/hamilton/plane-crash-reported-at-butler-county-regional-airport
https://www.journal-news.com/news/local/plane-crash-reported-butler-county/9fZCPNY0uzcJCTOPCGS5mO/
http://www.fox19.com/story/38193020/pilot-hurt-in-plane-crash-at-butler-county-regional-airport
_____________
http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=6550L
http://www.airport-data.com/aircraft/photo/000197286.html
Location
Media:
https://www.youtube.com/watch?v=pQktd6vJIwo&t=85sPilot identified in Butler County plane crash https://t.co/LUhVYMfYiE pic.twitter.com/hXVZ1TjtPe
— WLWT.com (@WLWT) 16 mai 2018
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 15-May-2018 21:23 | Geno | Added |
| 17-May-2018 20:31 | Iceman 29 | Updated [Time, Source, Embed code, Narrative] |
| 03-Oct-2018 05:22 | Architects | Updated [Embed code, Narrative] |
| 04-Jul-2020 18:58 | harro | Updated [Nature, Departure airport, Destination airport, Narrative, Accident report, ] |
| 04-Jul-2020 19:02 | harro | Updated [Embed code, Narrative, Accident report, ] |
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