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ASN Wikibase Occurrence # 43297
Last updated: 20 October 2020
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Date:02-DEC-1992
Time:10:12
Type:Silhouette image of generic H500 model; specific model in this crash may look slightly different
Hughes 369B
Owner/operator:Haverfield Corporation
Registration: N5035F
C/n / msn: 711013D
Fatalities:Fatalities: 2 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Fallbrook, CA -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Unknown
Departure airport:
Destination airport:
Investigating agency: NTSB
Narrative:
THE PILOT AND NONFLYING CREWMEMBER WERE PLACING MARKER BALLS ON HIGH TENSION WIRES. THE PILOT MISJUDGED THE DISTANCE FROM THE WIRES AND A MAIN ROTOR BLADE STRUCK THE UPPER GUIDE WIRE OF THE HIGH TENSION WIRES. THE MAIN ROTOR BLADE SEVERED THE TAIL BOOM ASSEMBLY. THE HELICOPTER ROTATED AFTER THE IMPACT AND THE TAIL BOOM ASSEMBLY STRUCK THE HIGH TENSION WIRES STANCHION. THE HELICOPTER PLUMMETED, UNCONTROLLED, TO THE GROUND. THE WRECKAGE AND VIDEO TAPE EXAMINATION DISCLOSED NO EVIDENCE OF ANY PREEXISTING MALFUNCTIONS OR FAILURES. CAUSE: THAT THE PILOT MISJUDGED THE DISTANCE OF THE HIGH TENSION WIRES FROM THE HELICOPTER.

Sources:

NTSB: http://www.ntsb.gov/ntsb/brief.asp?ev_id=20001211X16175


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
21-Dec-2016 19:24 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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