ASN Wikibase Occurrence # 379623
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Sunday 29 April 1984 |
| Time: | 15:30 LT |
| Type: |  Aerospatiale SA 316B Alouette III |
| Owner/operator: | St. Anthony's Hospital |
| Registration: | N608RM |
| MSN: | 1166 |
| Total airframe hrs: | 3455 hours |
| Engine model: | Turbomeca IIB |
| Fatalities: | Fatalities: 0 / Occupants: 3 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Near Dillon, CO -
 United States of America
|
| Phase: | En route |
| Nature: | Ferry/positioning |
| Departure airport: | Dillon, CO |
| Denver, CO (KDEN) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHEN THE PLT TOOK OFF FROM A MOUNTAINOUS SKI AREA, LIGHT TO MODERATE SNOW WAS FALLING & THE WINDS WERE COMING UP THE VALLEY AT 5 TO 10 KTS. DURING THE FLT, HE ENCOUNTERED AN ESTIMATED 35 KT UPSLOPE WIND AS HE WAS PROCEEDING ON THE UPWIND SIDE OF A RIDGE AT AN ELEVATION OF ABOUT 12700 FT. WITH THE UPDRAFT, HE WAS ABLE TO REDUCE POWER. THE HORIZON WAS NOT VISIBLE BUT HE COULD SEE THE MOUNTAIN TO HIS LEFT REAR AREA. JUST PRIOR TO THE ACCIDENT, THE ACFT WAS TRAVELING AT ABOUT 40 KTS AT 100 TO 150 FT AGL. THE PLT STATED THAT WHILE HE WAS STILL IN AN UPDRAFT WITH REDUCED POWER, HE LOOKED BACK, NO MORE THAN 3 TO 5 SEC. AS HE LOOKED FORWARD AGAIN. HE ENCOUNTERED A WIND SHIFT WHICH PUT HIM IN A DOWNWIND, LOW POWER SITUATION. FEELING THERE WAS INSUFFICIENT SPACE TO TURN DOWNHILL, HE TURNED UPHILL, ADDED POWER & FLARED. THE HELICOPTER TOUCHED DOWN HARD ON STEEP TERRAIN AT ABOUT 12500 FT. THEN BECAME AIRBORNE AGAIN. IT IMPACTED AGAIN AFTER DROPPING 15 TO 25 FT & CAME TO REST. THE T/R & T/R GEAR BOX SEPARATED DURING THE SEQUENCE.
Probable Cause:
Accident investigation:
 |
|
Sources:
NTSB DEN84LA139
History of this aircraft
Other occurrences involving this aircraft
| 6 January 1982 | N608RA | Roberts Aircraft Company | 0 | Mammoth Lakes, CA | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Apr-2024 07:44 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation