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ASN Wikibase Occurrence # 43453
Last updated: 25 September 2017
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Date:15-JUN-1989
Time:09:40
Type:Silhouette image of generic AS50 model; specific model in this crash may look slightly different
Aérospatiale AS 350B
Owner/operator:Era Aviation Inc
Registration: N160EH
C/n / msn: 2071
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Airplane damage: Written off (damaged beyond repair)
Category:Accident
Location:Puntilla Lake, Alaska -   United States of America
Phase: En route
Nature:Ferry/positioning
Departure airport:Puntilla Lake, Alaska
Destination airport:
Investigating agency: NTSB
Narrative:
THE AIR TAXI PILOT WAS RETURNING THE HELICOPTER TO ITS BASE CAMP AFTER TRANSPORTING PASSENGERS & PARTS TO A REMOTE DRILLING SITE IN RURAL ALASKA. WHILE EN ROUTE, THE HELICOPTER COLLIDED WITH THE ROCK FACE OF A 3,900 FT RIDGE AT THE 3,500 FT LEVEL. THE WEATHER IN THE AREA WAS REPORTED TO BE OVERCAST BETWEEN 3,000 & 3,500 FT AMSL WITH LIGHT TO OCCASIONALLY HEAVY RAIN.

THE PILOT HAD AN INSTRUMENT RATING FOR AIRPLANES, BUT NOT FOR HELICOPTERS. HE WAS REPORTEDLY IN THE HABIT OF FLYING OVER THE RIDGES, WHEN THE WEATHER PERMITTED, TO MINIMIZE FLIGHT TIME, INSTEAD OF FOLLOWING LOWER TERRAIN IN NEARBY VALLEYS.

CAUSE: THE PILOT CONTINUED VFR FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS (IMC) AND FAILED TO MAINTAIN SUFFICIENT ALTITUDE TO CLEAR THE MOUNTAINOUS TERRAIN. THE WEATHER AND TERRAIN CONDITIONS WERE CONTRIBUTING FACTORS.

Sources:

1. NTSB: http://www.ntsb.gov/aviationquery/brief.aspx?ev_id=20001213X28450&key=1
2. FAA: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=160EH
3. http://www.helis.com/database/cn/35486/
4. http://coptercrazy.brinkster.net/search/se350show.asp?start=1051&count=50
5. http://www.griffin-helicopters.co.uk/accidentdetails.aspx?accidentkey=11563
6. http://planecrashmap.com/plane/ak/N160EH/


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
30-Jun-2014 20:30 Dr. John Smith Updated [Time, Operator, Location, Nature, Departure airport, Source, Narrative]
21-Dec-2016 19:24 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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