ASN Wikibase Occurrence # 379269
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Date: | Monday 11 June 1984 |
Time: | 07:00 LT |
Type: | Hiller UH-12E |
Owner/operator: | Hoffman Pilot Center, Inc. |
Registration: | N504HA |
MSN: | |
Total airframe hrs: | 1700 hours |
Engine model: | Lycoming VO-540-C2A |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Granby, CO -
United States of America
|
Phase: | Approach |
Nature: | Unknown |
Departure airport: | Granby, CO |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE HELICOPTER PLT WAS ON A RECONNAISSANCE FLT TO SURVEY A HILLTOP LANDING SITE IN MOUNTAINOUS TERRAIN. WHEN HE ARRIVED, HE MADE A HIGH RECONNAISSANCE PASS, THEN BEGAN A LOW RECONNAISSANCE APCH. HE ESTIMATED THE WIND WAS FROM 210 DEG AT 10 TO 15 KTS WITH LIGHT TURBULENCE. HIS APCH WAS MADE ON A HEADING OF 200 DEG. HE BEGAN HIS APCH AT APRX 40 KTS & WITH A DESCENT RATE OF 200 FT/MIN. WHEN THE HELICOPTER WAS ABOUT 150 FT FROM THE HILLTOP & APRX 50 FT ABOVE IT, THE AIRSPEED DROPPED TO ZERO & THE RATE OF DESCENT INCREASED. THE PLT APPLIED FULL POWER & TURNED DOWN A VALLEY TO THE RIGHT, BUT COULD NOT STOP THE DESCENT. THE HELICOPTER THEN HIT A TREE, TOUCHED DOWN ON SLOPING TERRAIN & ROLLED OVER. THE ELEVATION & DENSITY ALT WERE ABOUT 9200 & 10,040 FT, RESPECTIVELY. THE HELICOPTER'S HOVER CEILING OUT OF GROUND EFFECT WAS ABOUT 8500 FT; IN GROUND EFFECT, THE HOVER CEILING WAS APRX 11,800 FT.
Probable Cause:
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | DEN84LA177 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB DEN84LA177
Location
Revision history:
Date/time | Contributor | Updates |
31-Mar-2024 17:33 |
ASN Update Bot |
Added |
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