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N17784 accident description

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Tail numberN17784
Accident dateDecember 20, 2007
Aircraft typeBeech V35B
LocationSpringfield, IL
Near 39.736389 N, -89.804444 W
Additional details: None

NTSB description

On December 20, 2007, at 1517 central standard time, a Beech V35B airplane, N17784, piloted by a private pilot was destroyed during impact with terrain near Springfield, Illinois. Instrument meteorological conditions prevailed at the time of the accident. The personal flight was operating under the provisions of 14 Code of Federal Regulations (CFR) Part 91 while on an instrument flight plan. The pilot and his two passengers were fatally injured. The flight departed Clermont County Airport, Batavia, Ohio, about 1430 eastern standard time.

At 1455:51 (hhmm:ss), the pilot checked in with Springfield approach control and reported being level at 3,000 feet. The approach controller told the pilot to expect the instrument landing system (ILS) runway 4 approach into Abraham Lincoln Capital Airport (SPI). The pilot received vectors to join the localizer and was cleared to descend to 2,300 feet. At 1515:04, the approach controller cleared the accident airplane for the ILS runway 4 approach. The pilot did not respond to the clearance and the controller inquired if the pilot had copied the approach clearance. At 1515:29, the pilot read back the approach clearance and then was told to contact Springfield control tower. At 1516:24, the pilot reported to the tower controller that he was experiencing a "problem." At 1516:47, the pilot told the tower controller "I can go out now [N11784] is flying eastbound." There were no additional communications received by the accident airplane.

Aircraft radar track data showed the airplane passing through the localizer centerline then make a rapid right turn back toward the centerline. During the right turn the airplane's altitude descended down to 1,300 feet, immediately followed by a rapid climb to 2,700 feet. The airplane impacted terrain about 3.0 nm outside the locator outer marker (HUSKK) on the localizer centerline.

The closest weather reporting facility to the accident site was at SPI, located about 8.5 miles northeast of the accident site. The airport was equipped with an automated surface observing system (ASOS). About 1529, the SPI ASOS reported: Wind 120 degrees true at 11 knots; visibility 2 1/2 sm with mist; sky overcast at 500 feet above ground level (agl); temperature 3 degrees Celsius; dew point 2 degrees Celsius; altimeter setting 29.84 inches of mercury.

(c) 2009-2011 Lee C. Baker. For informational purposes only.