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ASN Wikibase Occurrence # 43853
Last updated: 23 November 2021
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Type:Silhouette image of generic QIC2 model; specific model in this crash may look slightly different
Quickie Q2
Registration: N89WW
MSN: 2365
Fatalities:Fatalities: 1 / Occupants: 1
Aircraft damage: Substantial
Location:Edwardsville, IL -   United States of America
Phase: Take off
Departure airport:Alton/St. Louis, IL (ALN)
Destination airport:Unknown,
Investigating agency: NTSB

The pilot reported to air traffic control that the experimental amateur built airplane's engine was malfunctioning. A forced landing was made in a corn field, across the corn rows. The airplane nosed over and caught fire. Examination of the engine revealed that both left cylinders had no compression, and the cylinder head bolts were found with zero torque. The lower forward hold down bolt was found backed out 1/8 inch. After removing the cylinder head and barrels for both left cylinders, evidence of severe combustion gas blow by was found on both barrels and both heads. Metal was melted out of the heads at the bottom forward and bottom aft hold down bolt areas. The loose cylinder head barrels would have resulted in a significant loss of engine power. Toxicology testing revealed that the pilot had recently used two different impairing medications, but it is unclear whether the medication use was relevant to the accident sequence.

Probable Cause: The loss of engine power during cruise due to loose cylinder head bolts/loose cylinders.



Other occurrences involving this aircraft

18 Apr 1998 N996DT private 2 Siloam Springs , AR w/o


Revision history:

28-Oct-2008 00:45 ASN archive Added
21-Dec-2016 19:24 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
04-Dec-2017 18:33 ASN Update Bot Updated [Operator, Other fatalities, Destination airport, Source, Narrative]

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