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ASN Wikibase Occurrence # 14569
Last updated: 23 April 2019
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Date:08-AUG-1981
Time:13:10
Type:Rutan VariEze
Owner/operator:
Registration: N16DT
C/n / msn: 1260
Fatalities:Fatalities: 3 / Occupants: 3
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Location:N Holland, MI -   United States of America
Phase: En route
Nature:Private
Departure airport:Whitman Field, Oshkosh, Wi
Destination airport:Buffalo,Ny
Narrative:
maint persl observed Pilot reflare oil pressure line& restrict fitting end. -NTSB

Engine failure due to aluminium oil pressure sender line flared with incorrect automotive 45 degree flare angle. Line fractured at point where flare was rebent to 37 degree AN angle. Flight was in company with a second Varieze, VFR on top at 11,500 above tops to 10,000 feet above centre of Lake Michigan when he reported oil pressure was lost. Engine continued for another 15 miles then quit. PIlot entered cloud, ceiling was 500 scattered, 1,500 broken, 4,000 overcast. Aircraft crashed in a downwind turn at the upwind end of a 150 foot clearing and cartwheeled into trees. The lake shoreline was near and was into wind. 3 occupants in 2 seat aircraft were a couple and their infant son. Use of aluminium tube for oil pressure sender was not approved by designer, aeronautical flexible hose was specified.-CP

Sources:

NTSB

Rutan Aircraft Factory Canard Pusher No. 30 Pg 10 (manufacturer bulletin)


Revision history:

Date/timeContributorUpdates
25-Feb-2008 12:00 ASN archive Added
16-Feb-2018 12:57 saccani Updated [Phase, Nature, Departure airport, Source, Narrative]

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