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ASN Wikibase Occurrence # 42659
Last updated: 7 April 2019
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Date:12-JUL-1994
Time:15:05
Type:Silhouette image of generic B06 model; specific model in this crash may look slightly different
Bell 206L-3 LongRanger III
Owner/operator:USDA Forest Service - USFS
Registration: N3178B
C/n / msn: 51033
Fatalities:Fatalities: 3 / Occupants: 5
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Mimbres, NM -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Unknown
Departure airport:
Destination airport:
Investigating agency: NTSB
Narrative:
THE AIRCRAFT WAS BEING OPERATED BY THE USDA TO TRANSPORT FIRE FIGHTERS TO A FIRE. THE TWO SURVIVORS STATED THAT FOLLOWING A DOWNWIND APPROACH TO A PINNACLE ON A 9,520-FT MSL RIDGE LINE, THE PILOT ATTEMPTED TO BRING THE HELICOPTER TO A HOVER ABOUT 20 FT ABOVE THE LANDING AREA. THE NOSE OF THE HELICOPTER APPEARED HIGHER THAN NORMAL DURING THE FINAL PHASE OF THE APPROACH. THE HELICOPTER THEN ASSUMED A VERY HIGH NOSE ATTITUDE AND APPEARED TO START SLIDING BACKWARDS, FOLLOWED BY A LOSS OF CONTROL AND CONTACT WITH TREES. THE DENSITY ALTITUDE WAS 13,200 FT. THE AIRCRAFT WEIGHT WAS CALCULATED TO HAVE BEEN 3,750 POUNDS. UNDER THE CONDITIONS OF NO WIND, 9,520 FT PRESSURE ALTITUDE, AND 32 DEG C, THE MAXIMUM GROSS WEIGHT FOR HOVER IN AND OUT OF GROUND EFFECT WAS COMPUTED TO BE 3,580 AND 3,515 LBS RESPECTIVELY. CAUSE: THE PILOT'S IMPROPER DECISION TO ATTEMPT TO HOVER OUT OF GROUND EFFECT UNDER ADVERSE CONDITIONS WHILE EXCEEDING THE MAXIMUM ALLOWABLE WEIGHT FOR THAT MANEUVER. FACTORS IN THE ACCIDENT WERE: HIGH DENSITY ALTITUDE AND THE TAILWIND.

Sources:

NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001206X01735


Revision history:

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

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