ASN Wikibase Occurrence # 359516
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Date: | Sunday 4 December 1994 |
Time: | 17:40 LT |
Type: | Bellanca 17-30A |
Owner/operator: | Private |
Registration: | N39852 |
MSN: | 73-30517 |
Total airframe hrs: | 1678 hours |
Engine model: | CONTINENTAL IO-520-K1B |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Kent, WA -
United States of America
|
Phase: | Unknown |
Nature: | Private |
Departure airport: | Electric City, WA |
Destination airport: | Kent, WA (S36) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE PILOT STATED THAT THE FUEL-INJECTED ENGINE SUDDENLY LOST POWER WHILE THE AIRPLANE WAS DESCENDING THROUGH 3,000 FEET MSL FOR LANDING. THINKING THAT HE HAD DEPLETED ONE OF THE AIRPLANE'S FUEL TANKS, HE SWITCHED TANKS AND ATTEMPTED TO RESTART THE ENGINE WITHOUT ACTIVATING THE FUEL BOOST PUMP AS PER THE AIRPLANE FLIGHT MANUAL. THE ENGINE DID NOT START AND THE AIRPLANE WAS FORCE LANDED. IT IMPACTED A BERM AND WAS SUBSTANTIALLY DAMAGED. EVIDENCE OF SOME USABLE FUEL WAS FOUND IN BOTH TANKS. AN ESTIMATED 55 GALLONS OF FUEL WAS CONSUMED SINCE THE AIRPLANE WAS LAST REFUELED; THE AIRPLANE HOLDS 60 GALLONS OF USABLE FUEL. NO STANDING FUEL WAS FOUND IN ANY OF THE ENGINE FUEL COMPONENTS. ACCORDING TO THE AIRPLANE MANUFACTURER, THE 'CRITICAL ATTITUDE' FOR DETERMINING USABLE FUEL QUANTITY IS 'NOSE DOWN.' AN EXAMINATION OF THE ENGINE DID NOT REVEAL EVIDENCE OF ANY MECHANICAL DEFICIENCIES. THE AIRPLANE HAD PREVIOUS DISCREPANCIES WITH ITS FUEL SYSTEM, BUT THEY WERE RESOLVED PRIOR TO THE ACCIDENT.
Probable Cause: FUEL STARVATION DUE TO THE UNPORTING OF THE USEABLE FUEL SUPPLY, AND THE PILOT'S FAILURE TO FOLLOW THE AIRPLANE'S PUBLISHED ENGINE STARTING PROCEDURES AFTER THE LOSS OF FUEL FLOW DURING DESCENT. FACTORS CONTRIBUTING TO THE ACCIDENT ARE THE PILOT'S LACK OF FAMILIARITY WITH THE AIRPLANE, AND A BERM.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | SEA95LA026 |
Status: | Investigation completed |
Duration: | 10 months |
Download report: | Final report |
|
Sources:
NTSB SEA95LA026
Location
Revision history:
Date/time | Contributor | Updates |
15-Mar-2024 11:46 |
ASN Update Bot |
Added |
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