De Havilland DHC-3 TURBO N4247A
19 December 1984 · West Seattle, Washington, United States · Serious injuries
Summary
On 19 December 1984 at about 19:08 local time, a De Havilland DHC-3 TURBO registered N4247A was involved in an accident near West Seattle, Washington, United States. 3 people were on board and one was seriously injured, 2 had minor injuries. The aircraft was substantially damaged. No probable cause statement is available for this record.
The record
- Date
- at 19:08
- Classification
- Accident
- Location
- West Seattle, Washington, United States
- Nearest airport
- Boeing Field
- Coordinates
- 47.5693, -122.3993
- Aircraft
- De Havilland DHC-3 TURBO
- Registration
- N4247A
- Category
- Airplane
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 91: General Aviation
- Purpose of flight
- Unknown
- Phase of flight
- Not recorded
- Route
- Seattle → Unknown
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- SEA85FA034
People
1 person was seriously injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 3 | 0 | 1 | 2 | 0 |
Probable cause
The NTSB has not published a probable cause for this record. No probable cause statement is present in the source data.
Nothing about the cause is stated here that is not in the source record.
Read the full NTSB narrative
ACFT WAS PERFORMING TEST FLT MANEUVERS WHEN PROBLEMS WITH THE MODIFIED FUEL SYSTEM OCCURRED. ICE BLOCKING A FUEL VENT LINE CAUSED A PARTIAL COLLAPSE OF THE MAIN (ENGINE FEED) FUEL CELL WHICH PRODUCED AN ERROUNEOUS FUEL QUANTITY READING. IN ADDITION, THE MAIN TANK OVERFLOW SHUTOFF VALVE WAS LEAKING, SO TANK OVERFLOW OCCURRED. THE FUEL OVERFLOW CAUTION LIGHT ILLUMINATED AND AUXILIARY TANK FUEL PUMP FEED TO MAIN AUTOMATICALLY SHUT DOWN. DUE TO MISCALIBRATION, THIS SYSTEM OVERRODE PLT ATTEMPTS TO RESTART AUX FUEL PUMPS. PLT REMAINED IN TEST AREA TROUBLESHOOTING RATHER THAN IMMEDIATE RETURN TO BASE, FINALLY NOTED MAIN TANK GAGE CONTINUING TO READ 'FULL.' EN ROUTE TO BOEING FIELD, FUEL STARVATION OCCURRED. PLTOPTED TO ATTEMPT FORCED LNDG IN SMALL ATHLETIC FIELD IN RESIDENTIAL AREA RATHER THAN DITCH IN PUGET SOUND. THE ACFT TOUCHED DOWN IN INTENDED LNDG AREA, THEN BOUNCED ACROSS AN ADJACENT STREET. THE ARRESTING ACTION OF TELEPHONE WIRES ON THE VERTICAL FIN BROUGHT THE ACFT TO REST IN A RESIDENTIAL BACKYARD.
Quoted verbatim from the NTSB record.
Other De Havilland DHC-3 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 11 Sep 1985 | De Havilland DHC-3 | Cape Douglas, Alaska, United States | - | No injuries | - |
| 20 Sep 1986 | De Havilland DHC-3 | American River, Alaska, United States | Bering Air Service | Minor injuries | - |
| 1 Sep 1982 | De Havilland DHC-3 | Near Skwentna, Alaska, United States | Woods Air Service | No injuries | - |
| 29 Oct 1986 | De Havilland DHC-3 | San Juan | - | Fatal | 1 |
| 27 Oct 1982 | De Havilland DHC-3 | Homer, Alaska, United States | Kachemak Air Service | No injuries | - |
| 4 Jul 1981 | De Havilland DHC-3 | South Naknek, Alaska, United States | - | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 14 Jan 1984 | Cessna 150H | Deer Park, Washington, United States | - | No injuries | - |
| 18 Oct 1984 | Boeing VC-137B-BN | Seattle, Washington, United States | - | No injuries | - |
| 21 Jan 1984 | Beechcraft A35 | Renton, Washington, United States | - | No injuries | - |
| 15 Jan 1984 | Raven RALLY RX7 | Aibirm, Washington, United States | - | No injuries | - |
| 29 Jan 1984 | Lark IS28B2 | Issaquqh, Washington, United States | - | No injuries | - |
| 6 Feb 1984 | Cessna A185F | Winslow, Washington, United States | - | No injuries | - |