ASN Wikibase Occurrence # 42582
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Date: | Sunday 6 May 1990 |
Time: | 17:15 |
Type: | Bell UH-1B |
Owner/operator: | Tri-Rotor Spray & Chemical |
Registration: | N8142W |
MSN: | 63-8566 |
Year of manufacture: | 1963 |
Total airframe hrs: | 4768 hours |
Engine model: | LYCOMING T53-L-11D |
Fatalities: | Fatalities: 1 / Occupants: 1 |
Aircraft damage: | Destroyed |
Category: | Accident |
Location: | Ulysses, Kansas -
United States of America
|
Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
Nature: | Agricultural |
Departure airport: | Ulysses, Kansas |
Destination airport: | Ulysses, Kansas |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:The helicopter was refuelled and loaded with a spray mix, then the pilot proceeded to a field and began aerial application. After the 2nd swath run, he manoeuvred the helicopter up and over 'big' power lines at the east end of the field. At about that time, the helicopter entered a descent and crashed. The pilot (the sole person on board) was killed.
No pre-impact mechanical problem was found during the investigation. The owner estimated the helicopter had about 1983 lb of spray and 900 lb of fuel on board when it crashed.
The NTSB determined the probable cause of the accident to be: The pilot failed to maintain proper rotor RPM, while manoeuvring over a high obstruction (power line) at the end of a swath run, which resulted in an inadvertent descent and collision with the terrain. The high obstruction
was considered to be a related factor
Sources:
1. NTSB Identification: MKC90DCQ02 at
http://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20001212X23230&key=1&queryId=e88d8533-1a91-461d-a788-bf3b05642f1d&pgno=1&pgsize=50 2. FAA:
http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?omni=Home-N-Number&nNumberTxt=8142W Revision history:
Date/time | Contributor | Updates |
24-Oct-2008 10:30 |
ASN archive |
Added |
15-Apr-2016 23:27 |
Dr.John Smith |
Updated [Time, Location, Departure airport, Destination airport, Source, Narrative] |
21-Dec-2016 19:24 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
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