ASN Wikibase Occurrence # 44805
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| Date: | Tuesday 22 June 2004 |
| Time: | 10:50 |
| Type: |  Cessna P210N Pressurized Centurion |
| Owner/operator: | Stone House Aviation Inc |
| Registration: | N99HW |
| MSN: | P21000487 |
| Year of manufacture: | 1980 |
| Total airframe hrs: | 1252 hours |
| Engine model: | Continental TSIO-520 |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Dunkirk, NY -
 United States of America
|
| Phase: | En route |
| Nature: | Private |
| Departure airport: | Flint-Bishop Airport, MI (FNT/KFNT) |
| Chautauqua County-Jamestown Airport, NY (JHW/KJHW) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
On June 22, 2004, about 1050 eastern daylight time, a Cessna P210N, N99HW, was destroyed when it impacted Lake Eire, during a cruise descent near Dunkirk, New York. The certificated commercial pilot was fatally injured. Instrument meteorological conditions prevailed and an instrument flight rules (IFR) flight plan had been filed for the flight that departed Bishop International Airport (FNT), Flint, Michigan, destined for Jamestown Airport (JHW), Jamestown, New York. The personal flight was conducted under 14 CFR Part 91.
The pilot was conducting a cross country instrument flight rules flight. The airplane was deviating around thunderstorm activity, and was cleared to it's destination airport, when radar contact was lost. A witness reported hearing an airplane overhead; however, he could not see the airplane due to haze and clouds. He described the engine noise as "revving in a cycling pattern." Within 10 seconds, he observed an airplane exit the clouds in a nose down spiral, with one wing missing. The airplane impacted Lake Erie nose first and sank. Examination of the right wing main spar revealed fractures consistent with an overstress separation and aft and upward loading. The pilot obtained a weather briefing prior to the flight. At the time of the briefing, there were no current or forecasted thunderstorms around the pilot's destination airport. There were also no convective SIGMETs valid for the area where the accident occurred. Review of weather radar around the time of the accident revealed two very strong thunderstorm cells over the western portion of New York, along Lake Erie, moving northeast. The airplane disappeared from radar, as it transitioned through the northern edge of one of the echoes in reflectivity values near 25 dBZ or very light intensity echoes. The geo-synchronous weather satellite-12 (GOES-12) visible image depicted a large band of clouds extending over Lake Erie, and New York. Several Cumulonimbus clouds were located immediately south of the accident site.
Probable Cause: The pilot's loss of aircraft control and the subsequent overstress and separation of the wing during an encounter with convection induced turbulence.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20040707X00918&key=1
Location
Images:
Photo: NTSB
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-Oct-2008 00:45 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 07-Dec-2017 18:05 | ASN Update Bot | Updated [Operator, Source, Narrative] |
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