ASN Wikibase Occurrence # 191971
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| Date: | Sunday 11 December 2016 |
| Time: | 13:00 |
| Type: |  Beechcraft A36 Bonanza |
| Owner/operator: | Private |
| Registration: | N69286 |
| MSN: | E-2152 |
| Year of manufacture: | 1984 |
| Total airframe hrs: | 1650 hours |
| Engine model: | Continental 550 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Long Island Sound off Shoreham, NY -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | New York, NY (ISP) |
| Westfield/springfield, MA (BAF) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
While the private pilot was conducting a cross-country flight, the airplane's engine started running roughly when the airplane was about 5,500 ft. The pilot pushed the mixture, propeller, and throttle controls to the full forward position, but the engine continued to run roughly. The pilot then decided to return to the departure airport. During the turn back to the airport, oil covered the windscreen. The pilot declared an emergency and asked air traffic control for radar vectors to a closer airport. The pilot was having trouble controlling the airplane, so he asked for vectors to another airport. Seconds later, he saw parts, which he thought were from the propeller, separate from the airplane. The engine then lost total power, and the pilot ditched the airplane into the water below. Postaccident examination of the engine revealed that the crankshaft was fatigue fractured at the No. 4 main bearing journal. The origin surface area of the fatigue crack was obliterated due to relative movement between the mating fracture faces; thus, the investigation could not determine the cause of the fatigue crack.
Probable Cause: A fatigue crack of the crankshaft at the No. 4 main bearing journal.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/
Location
Images:
Media:
Audio from Liveatc.net, New York Approach (LOVES Sector):
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 11-Dec-2016 22:58 | Geno | Added |
| 12-Dec-2016 07:52 | BTD-1 | Updated [Aircraft type, Registration, Operator, Departure airport, Source, Embed code] |
| 12-Dec-2016 07:53 | harro | Updated [Cn, Operator, Source, Embed code] |
| 12-Dec-2016 08:21 | harro | Updated [Aircraft type, Embed code, Narrative, Photo, ] |
| 12-Dec-2016 08:24 | harro | Updated [Embed code] |
| 22-Apr-2020 17:04 | ASN Update Bot | Updated [Time, Nature, Departure airport, Destination airport, Source, Embed code, Narrative, Accident report, ] |
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