ASN Wikibase Occurrence # 40834
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Date: | Sunday 10 June 1984 |
Time: | 13:36 |
Type: | Hiller UH-12E |
Owner/operator: | private |
Registration: | N93431 |
MSN: | 1768 |
Total airframe hrs: | 1837 hours |
Fatalities: | Fatalities: 1 / Occupants: 1 |
Aircraft damage: | Destroyed |
Category: | Accident |
Location: | Merrimac, WI -
United States of America
|
Phase: | En route |
Nature: | Unknown |
Departure airport: | Baraboo, WI |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE ACFT CRASHED AND BURNED AFTER AN IN-FLT EXPLOSION AT ABOUT 75 FT AGL AS THE ACFT APPROACHED TO LAND. THE ACFT HAD EXPERIENCED ELECTRICAL PROBLEMS OF OVERHEATING GENERATORS AND IRREGULAR VOLTAGE OUTPUTS ON 2 PREVIOUS OCCASIONS. THE PLTWAS TOLD AFTER SOME REPAIRS THAT IF HE SMELLED ANYTHING HOT TO PULL THE GENERATOR CIRCUIT BREAKER. POST-ACCIDENT ACFT EXAMINATION SHOWED A CONDITION OF THE VOLTAGE REGULATOR WHICH WOULD HAVE CAUSED CONTINUOUS CHARGING OF THE BATTERY. THE GENERATOR SHOWED SIGNS OF OVERHEATING AND THE BATTERY HAD EXPLODED AWAY FROM THE WRECKAGE WITH THE TERMINAL POLES MELTEDOFF. CAUSE:
Sources:
NTSB:
http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001214X39833 Revision history:
Date/time | Contributor | Updates |
24-Oct-2008 10:30 |
ASN archive |
Added |
21-Dec-2016 19:23 |
ASN Update Bot |
Updated [Time, Damage, Category, Investigating agency] |
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