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| Date: | Friday 18 January 1991 |
| Time: | 15:30 LT |
| Type: |  Beechcraft 35 Bonanza |
| Owner/operator: | Private |
| Registration: | N4589V |
| MSN: | D-1060 |
| Total airframe hrs: | 7476 hours |
| Engine model: | Continental E-185-11-10 |
| Fatalities: | Fatalities: 1 / Occupants: 2 |
| Other fatalities: | 0 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Arden, NC -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | (KAVL) |
| Lawrenceville, GA | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING THE INITIAL CLIMB AFTER TAKEOFF, THE ENG LOST POWER. SUBSEQUENTLY, THE ACFT COLLIDED WITH TREES AND CRASHED. WATER WAS FOUND IN A FUEL LINE (BTN THE FUEL SELECTOR VLV AND ELECTRIC FUEL PUMP), ELECTRIC BOOST PUMP MANIFOLD, AND CARBURETOR (CARB) INLET STRAINER; HOWEVER, THE FUEL SYSTEM WAS DAMAGED DURING IMPACT AND FIRE SUPPRESSANT CHEMICALS WERE SPRAYED ON THE WRECKAGE. A CHECK OF THE CARB SHOWED THAT IT WAS PROVIDING A LEAN MIXTURE AT LOW POWER SETTINGS AND A RICH MIXTURE AT HI POWER SETTINGS. A TEARDOWN OF THE CARB REVEALED A CRYSTALLINE SUBSTANCE ON THE CARB DIAPHRAGM, AN IMPROPER METERING JET, AND THAT 5 SHIMS WERE INSTALLED IN THE CARB REGULATOR DIAPHRAGM SPRING MECHANISM. THE BENDIX OVERHAUL MANUAL ALLOWED A MAXIMUM OF 2 SHIMS. DURING A POST-ACDNT CHECK, THE ENG OPERATED NORMALLY WITH THE ELECTRIC FUEL PUMP ON, BUT THE ENG STOPPED RUNNING WHEN THE ELECTRIC PUMP WAS TURNED OFF.
Probable Cause: FOR UNDETERMINED REASONS, THE ENGINE LOST POWER.
Accident investigation:
 |
|
Sources:
NTSB ATL91FA039
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:23 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency, ] |
| 21-Apr-2024 08:44 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Departure airport, Destination airport, Source, Narrative, Category, Accident report, ] |
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