ASN Wikibase Occurrence # 43853
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| Date: | Monday 5 March 2007 |
| Time: | 14:30 |
| Type: |  Quickie Q2 |
| Owner/operator: | Private |
| Registration: | N89WW |
| MSN: | 2365 |
| Engine model: | Revmaster 2100 |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Edwardsville, IL -
 United States of America
|
| Phase: | Take off |
| Nature: | Unknown |
| Departure airport: | Alton/St. Louis, IL (ALN) |
| Unknown, | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
"THIS CASE WAS MODIFIED AUGUST 19, 2008."
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.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20070306X00255&key=1
History of this aircraft
Other occurrences involving this aircraft
| 18 April 1998 | N996DT | D.t. Foster & D.l. Hilsman | 2 | Siloam Springs , AR | |
w/o |
Location
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] |
| 04-Dec-2017 18:33 | ASN Update Bot | Updated [Operator, Other fatalities, Destination airport, Source, Narrative] |
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