Wellsville, KS, USA
N26324
Luscombe 8F
The pilot said the engine made a loud "bang" approximately 10 minutes into the flight and lost power. The airplane was vibrating, so the pilot secured the engine and shut off the fuel supply. The pilot declared an emergency, then attempted to land in a bean field. The airplane had "insufficient speed and altitude" to clear a tree line and struck the trees. Engine disassembly revealed the number 2 intake valve had been completely "swallowed" into the cylinder. The engine had accrued 1,700.49 hours since overhaul. The rated time-between-overhaul for the Continental C-90-12F engine is 1,800 hours.
On November 5, 2006, approximately 1100 central standard time, a Luscombe 8F, N26324, piloted by a private pilot, was substantially damaged when the it struck trees and impacted terrain following a loss of power during landing approach to a field in Wellsville, Kansas. Visual meteorological conditions prevailed at the time of the accident. The personal flight was being conducted under the provisions of Title 14 CFR Part 91 without a flight plan. The pilot, the sole occupant aboard, was not injured. The cross-country flight originated from Ottawa, Kansas, approximately 1030, and was en route to Gardner Kansas. According to a telephone interview and the pilot's accident report, the engine made a loud "bang" approximately 10 minutes into the flight and lost power. The airplane was vibrating, so the pilot secured the engine. The pilot declared an emergency, then attempted to land in a bean field. The airplane had "insufficient speed and altitude" to clear a tree line and struck the trees. Both wings were extensively damaged and the fuselage was crumpled. An FAA inspector responded to the accident site and reported the engine oil "at a normal level." Examination of the maintenance records revealed the following: Last annual inspection: November 9, 2005 Current tachometer time: 2,066.12 hours Aircraft total time: 17,731.9 hours Time since overhaul (TSO): 1,700.49 hours Overhaul date: Unknown Rated overhaul time: 1,800 hours Engine disassembly revealed the number 2 intake valve had been completely "swallowed" into the cylinder. The engine had accrued 1,700.49 hours since overhaul. The rated time-between-overhaul for the Continental C-90-12F engine is 1,800 hours.
A loss of engine power due to the ingestion of the number 2 intake valve into its cylinder. Contributing factors included the pilot allowing the airspeed and altitude to drop, making a safe landing not possible.
Source: NTSB Aviation Accident Database
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