ASN Wikibase Occurrence # 35333
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Date: | Saturday 9 July 1994 |
Time: | 13:20 |
Type: | Piper PA-22-135 |
Owner/operator: | Private |
Registration: | N3645A |
MSN: | 22-1905 |
Total airframe hrs: | 3700 hours |
Engine model: | LYCOMING O-290-D2 |
Fatalities: | Fatalities: 3 / Occupants: 3 |
Aircraft damage: | Destroyed |
Category: | Accident |
Location: | Lake Wenatchee State Airport (WA32), WA -
United States of America
|
Phase: | Take off |
Nature: | Private |
Departure airport: | Lake Wenatchee State Airport, WA (WA32) |
Destination airport: | Harvey Field, WA (S43) |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:On July 9, 1994, approximately 1320 Pacific daylight time (PDT), a Piper PA-22-135, N3645A, impacted trees off the departure end of runway 27 while attempting a takeoff from Lake Wenatchee State Airport, Leavenworth, Washington. The private pilot and her two passengers received fatal injuries, and the aircraft was destroyed. The personal pleasure flight, which was operating in visual meteorological conditions, was in the process of departing for Harvey Field, Snohomish, Washington. No flight plan had been filed, and there was no report of an ELT activation.
THE PILOT INITIATED A TAKEOFF FROM A ROUGH TURF AIRSTRIP THAT WAS 2400' IN LENGTH. THE RUNWAY HAD AREAS OF SOFT DIRT INTERSPERSED WITH AREAS OF GRASS THAT RANGED FROM 1 TO 8 INCHES IN HEIGHT. DURING TAKEOFF, THE AIRCRAFT COLLIDED WITH TREES NEAR THE DEPARTURE END OF THE RUNWAY. THE TREES WERE ABOUT 75' TALL; IMPACT OCCURRED ABOUT 50' ABOVE THE GROUND. CALCULATIONS SHOWED THAT THE DENSITY ALTITUDE WAS ABOUT 4700', AND THAT WITH THE PREVAILING CONDITIONS, ABOUT 2213' TO 2616' OF RUNWAY WOULD HAVE BEEN NEEDED FOR THE TAKEOFF GROUND RUN.
Probable Cause: THE PILOT'S INADEQUATE PREFLIGHT PLANNING/PREPARATION. FACTORS RELATED TO THE ACCIDENT WERE: HIGH DENSITY ALTITUDE, THE RUNWAY CONDITION (WITH AREAS OF SOFT OR UNEVEN TERRAIN AND TALL GRASS), AND OBSTRUCTIONS (TREES) NEAR THE DEPARTURE END OF THE RUNWAY.
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | SEA94FA174 |
Status: | Investigation completed |
Duration: | 1 year and 3 months |
Download report: | Final report |
|
Sources:
NTSB:
https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001206X01861 Images:
Photo: NTSB
Revision history:
Date/time | Contributor | Updates |
24-Oct-2008 10:30 |
ASN archive |
Added |
21-Dec-2016 19:22 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
12-Oct-2022 03:39 |
Captain Adam |
Updated [Operator, Location, Departure airport, Destination airport, Narrative, Category, Accident report, Photo] |
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