ASN Wikibase Occurrence # 43297
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| Date: | Wednesday 2 December 1992 |
| Time: | 12:12 LT |
| Type: |  Hughes 369B |
| Owner/operator: | Haverfield Corporation |
| Registration: | N5035F |
| MSN: | 711013D |
| Year of manufacture: | 1981 |
| Total airframe hrs: | 8436 hours |
| Engine model: | ALLISON 250-C20B |
| Fatalities: | Fatalities: 2 / Occupants: 2 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Fallbrook, CA -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
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.
Probable Cause: THAT THE PILOT MISJUDGED THE DISTANCE OF THE HIGH TENSION WIRES FROM THE HELICOPTER.
Accident investigation:
 |
|
Sources:
NTSB LAX93LA057
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 16:29 | ASN Update Bot | Updated [Time, Other fatalities, Source, Narrative, Category, Accident report] |
Corrections or additions? ... Edit this accident description
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