ASN Wikibase Occurrence # 43433
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| Date: | Thursday 1 April 1993 |
| Time: | 18:15 LT |
| Type: |  Aérospatiale SA 316B Alouette III |
| Owner/operator: | Sea Pacific, Inc. |
| Registration: | N3153R |
| MSN: | 1484 |
| Year of manufacture: | 1967 |
| Total airframe hrs: | 2308 hours |
| Engine model: | TURBOMECA ARTOUSE IIIB |
| Fatalities: | Fatalities: 3 / Occupants: 4 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Aspen, CO -
 United States of America
|
| Phase: | En route |
| Nature: | Unknown |
| Departure airport: | Irwin Lodge, CO |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
WHILE IN CRUISE FLIGHT AT AN ALTITUDE OF 150 TO 200 FEET AGL, THE SURVIVING PASSENGER HEARD ABNORMAL SOUNDS FROM THE HELICOPTER WHICH THEN BEGAN A DESCENDING RIGHT BANK INTO TREES. EXAMINATION OF THE HELICOPTER DISCLOSED FATIGUE FAILURE OF THE LOWER MIXING UNIT AND A FATIGUE CRACK IN THE UPPER MIXING UNIT ON THE FLIGHT CONTROL SYSTEM.
Probable Cause: FAILURE OF THE FLIGHT CONTROL LOWER MIXING UNIT DUE TO FATIGUE, WHICH RESULTED IN THE LOSS OF CONTROL.
Accident investigation:
 |
|
Sources:
NTSB DEN93FA038
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Oct-2008 10:30 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 10-Apr-2024 15:01 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Source, Narrative, Category, Accident report] |
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