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ASN Wikibase Occurrence # 35333
Last updated: 4 October 2019
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Date:09-JUL-1994
Time:13:20
Type:Silhouette image of generic PA22 model; specific model in this crash may look slightly different
Piper PA-22-135
Owner/operator:private
Registration: N3645A
C/n / msn: 22-1905
Fatalities:Fatalities: 3 / Occupants: 3
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Leavenworth, WA -   United States of America
Phase: Take off
Nature:Private
Departure airport:Lake Wenatchee , WA (WA32)
Destination airport:Snohomish, WA (S43)
Investigating agency: NTSB
Narrative:
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. 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.

Sources:

NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001206X01861


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
21-Dec-2016 19:22 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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