ASN Wikibase Occurrence # 44878
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| Date: | Tuesday 27 April 2004 |
| Time: | 15:00 |
| Type: | Schramm Helicycle |
| Owner/operator: | Private |
| Registration: | N3275Q |
| MSN: | HC001 |
| Total airframe hrs: | 175 hours |
| Engine model: | Solar T62 |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Montour, ID -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Private |
| Departure airport: | Montour, ID |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot participated in a photo shoot earlier in the morning before landing and being refueled by company ground support personnel. Communication with the departing helicopter was maintained with ground support personnel until it went around a hill and out of sight. The aircraft was subsequently reported missing and located later in the day, partially submerged in a river located approximately 1 mile northwest of the departure point. There were no witnesses to the accident. An examination of the accident site revealed extensive damage to the helicopter due to impact forces with the water. The tail rotor, tail rotor drive shaft, and a major portion of the empennage and the fuel tanks were missing and never recovered. The engine and accessories were separated from the helicopter's airframe structure. The main rotor mast was free to turn and remained connected to the gearbox. Control continuity could not be determined due to the extensive damage to the helicopter. A small metal arm welded to the tail rotor pedal control torque tube was broken off. An examination of the rudder pedal assembly by the NTSB Materials Laboratory revealed that the fracture surface patterns were consistent with a bending overstress separation. It could not be determined whether the overstress condition was the result of a precrash or postcrash event. The pilot's helmet, equipped with a video recording device, was not recoverd during the postcrash recovery.
Probable Cause: In flight collision with terrain for undetermined reasons.
Accident investigation:
 |
|
Sources:
NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20040505X00557&key=1
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-Oct-2008 00:45 | ASN archive | Added |
| 21-Dec-2016 19:24 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 07-Dec-2017 17:52 | ASN Update Bot | Updated [Operator, Source, Narrative] |
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