ASN Wikibase Occurrence # 371044
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Date: | Friday 27 May 1988 |
Time: | 12:30 LT |
Type: | Enstrom F28A |
Owner/operator: | Hiser Helicopter |
Registration: | N4898 |
MSN: | 055 |
Total airframe hrs: | 13554 hours |
Engine model: | LYCOMING HI0-360-CIA |
Fatalities: | Fatalities: 0 / Occupants: 2 |
Aircraft damage: | Substantial |
Category: | Accident |
Location: | La Verne, CA -
United States of America
|
Phase: | Landing |
Nature: | Training |
Departure airport: | |
Destination airport: | |
Investigating agency: | NTSB |
Confidence Rating: | Accident investigation report completed and information captured |
Narrative:THE HELICOPTER LANDED HARD DURING A PRACTICE TOUCHDOWN AUTOROTATION (AUTO). THE HELO REMAINED IN CLOSED TRAFFIC FOR THE PURPOSE OF PRACTICING TOUCHDOWN AUTOS TO A LANDING AREA ADJACENT TO THE APRT'S RWY. THERE WAS ALSO ANOTHER HELO IN CLOSED TRAFFIC USING THE LANDING AREA FOR THE SAME PURPOSE. THE OTHER HELO WAS LANDING LONG IN THE AREA ALLOWING THE ACCIDENT HELO TO USE THE FIRST HALF. THE PVT PLT INITIATED THE AUTO. THE CFI THEN TOOK COMMAND OF THE HELO BECAUSE HE FELT THEY WOULD NOT CLEAR A PERIMETER FENCE LOCATED SHORT OF THE INTENDED TOUCHDOWN POINT. THE CFI THEN APPLIED COLLECTIVE PITCH TO EXTEND THE GLIDE OVER THE FENCE. THE PRIVATE PLT INDICATED THAT THE ROTOR RPM WAS DEPLETED AND THE CFI DID NOT FLARE THE HELO SUFFICIENTLY TO REGAIN ROTOR RPM OR DECREASE THE GROUND SPEED. THE HELO LANDED HARD AND BOUNCED. NEITHER THE PRIVATE PLT NOR THE CFI REPORTED ANY MECHANICAL FAILURES OR MALFUNCTIONS.
Probable Cause:
Accident investigation:
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| |
Investigating agency: | NTSB |
Report number: | LAX88LA198 |
Status: | Investigation completed |
Duration: | 1 year and 7 months |
Download report: | Final report |
|
Sources:
NTSB LAX88LA198
Location
Revision history:
Date/time | Contributor | Updates |
25-Mar-2024 17:28 |
ASN Update Bot |
Added |
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