ASN Wikibase Occurrence # 379119
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Date: | Wednesday 27 June 1984 |
Time: | 07:05 LT |
Type: | Hiller UH-12E |
Owner/operator: | Pingrey Brothers, Inc |
Registration: | N530HA |
MSN: | 5030 |
Total airframe hrs: | 1657 hours |
Engine model: | Lycoming VO-540 |
Fatalities: | Fatalities: 0 / Occupants: 1 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | Yuba City, CA -
United States of America
|
Phase: | Initial climb |
Nature: | Agricultural |
Departure airport: | |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:AFTER DISPENSING 8 LOADS, THE PLT REFUELED & TOOK OFF WITH THE 9TH LOAD. ABOUT 4 TO 6 SECONDS INTO THE FLT, WHILE APPROACHING TRANSITIONAL LIFT AT APRX 6 FT AGL, THE HELICOPTER BEGAN A VIBRATION & IMMEDIATELY LOST ROTOR RPM. THE PLT INITIATED A LANDING STRAIGHT AHEAD, BUT THE HELICOPTER YAWED TO THE LEFT & TOUCHED DOWN LEVEL IN A CRABBED-TO-THE-LEFT ATTITUDE. THE RIGHT SKID COLLAPSED & THE HELICOPTER ROLLED THE THE RIGHT. THE MAIN ROTOR STRUCK THE GROUND, THEN SEVERED THE TAIL BOOM & A 5 INCH DRIVE LINE. THE PLT SUSPECTED A VAPOR LOCK PROBLEM. HE HAD SHUT OFF THE FUEL PUMP DURING THE REFUELING & DID NOT REMEMBER TURNING IT BACK ON. NO PREIMPACT PART FAILURE OR MALFUNCTION WAS FOUND.
Probable Cause:
Accident investigation:
|
| |
Investigating agency: | NTSB |
Report number: | LAX84LA373 |
Status: | Investigation completed |
Duration: | |
Download report: | Final report |
|
Sources:
NTSB LAX84LA373
Location
Revision history:
Date/time | Contributor | Updates |
31-Mar-2024 15:55 |
ASN Update Bot |
Added |
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