ASN Wikibase Occurrence # 43361
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| Date: | Sunday 6 February 1994 |
| Time: | 14:21 LT |
| Type: |  Beechcraft 95 Travel Air |
| Owner/operator: | Cy Aviation Leasing, Inc |
| Registration: | N9903R |
| MSN: | TD-389 |
| Total airframe hrs: | 2148 hours |
| Engine model: | Lycoming O-360-A1A |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Chesterfield, MO -
 United States of America
|
| Phase: | Approach |
| Nature: | Private |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
ON DOWNWIND TO LAND, BOTH ENGINES LOST POWER DUE TO FUEL STARVATION. CONTROL OF THE AIRPLANE WAS NOT MAINTAINED AND THE AIRPLANE IMPACTED IN AN OPEN CLEARING AT A STEEP ANGLE. THE FUEL SELECTOR VALVE HANDLES INDICATED OPPOSITE (180 DEGREES OUT) OF THE ACTUAL FUEL VALVE POSITION SELECTED. NO FUEL WAS EVIDENT IN THE LEFT AUXILIARY TANK AND THERE WAS EVIDENCE OF FUEL IN THE OTHER 3 TANKS. NO INDICATION OF FUEL OR PROPELLER ROTATION WAS FOUND AT THE LEFT ENGINE. FUEL AND SOME ROTATION WAS EVIDENT AT THE RIGHT ENGINE. NEITHER PROP WAS FEATHERED, FLAPS WERE UP AND LANDING GEAR WAS DOWN. THE MANDATORY SERVICE BULLETIN (MSB) RECENTLY INSTALLED INVOLVING THE FUEL SELECTOR VALVE HANDLES COULD NOT BE PERFORMED AS PER THE INSTRUCTIONS. THE MECHANIC MODIFIED THE KIT PROCEDURES, RESULTING IN THE SELECTOR HANDLES BEING INSTALLED OPPOSITE OF THE FUEL PORT POSITION.
Probable Cause: incorrect installation of the fuel selector valves during mandatory service bulletin modification which resulted in fuel starvation to both engines and failure of the pilot-in-command to maintain aircraft control during emergency descent. A factor was inadequate quality control prior to publication of the mandatory service bulletin.
Accident investigation:
 |
|
Sources:
NTSB CHI94FA076
Location
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] |
| 06-Jun-2023 09:44 | Ron Averes | Updated [[Time, Damage, Category, Investigating agency]] |
| 10-Apr-2024 09:01 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Source, Narrative, Category, Accident report] |
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