ASN Wikibase Occurrence # 42295
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| Date: | Saturday 18 May 1991 |
| Time: | 16:30 |
| Type: |  Cessna 150J |
| Owner/operator: | Bestway Aviation #2 |
| Registration: | N1019M |
| MSN: | 15070999 |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Caney, OK -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PLT & PASSENGER WERE PARTICIPATING IN AN ACTIVITY TO COMPETE IN DROPPING PAPER SACKS OF FLOWER IN A CIRCLE ON THE GROUND AT A FLY-IN. AFTER THE PLT HAD JUST COMPLETED A LOW PASS, WITNESSES NOTED THE ENG BEGAN RUNNING ROUGH, THEN THE ACFT DESCENDED & CRASHED. AN EXAM OF THE WRECKAGE REVEALED THE ACFT HAD IMPACTED IN A STEEP DESCENT. THE PROP BLADES WERE EQUALLY DISTORTED & BOTH BLADES CONTAINED ROTATIONAL SCUFF MARKS. A TEARDOWN OF THE ENG REVEALED THE #2 CYLINDER HAD A BLOWN EXHAUST MANIFOLD GASKET & THAT ITS RESPECTIVE EXHAUST VALVE WAS STUCK. ALSO, HEAT DAMAGE WAS NOTED ON THE #4 CYLINDER, DUE TO ESCAPING EXHAUST GASES. CAUSE: BINDING OF THE #2 EXHAUST VALVE (STUCK VALVE), AND FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED, WHICH RESULTED IN AN INADVERTENT STALL. A FACTOR RELATED TO THE ACCIDENT WAS: THE FAILED EXHAUST MANIFOLD GASKET.
Sources:
NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001212X17003
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
Corrections or additions? ... Edit this accident description
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