ASN Wikibase Occurrence # 367770
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| Date: | Sunday 29 October 1989 |
| Time: | 10:05 LT |
| Type: |  Bell 47G-2A-1 |
| Owner/operator: | Marshall County Civil Defense |
| Registration: | N500CD |
| MSN: | 3458 |
| Year of manufacture: | 1965 |
| Total airframe hrs: | 5453 hours |
| Engine model: | LYCOMING VO-435-A1F |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Plymouth, IN -
 United States of America
|
| Phase: | Landing |
| Nature: | Training |
| Departure airport: | Plymouth, IN (52II) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
DURING A BIENNIAL FLT REVIEW (BFR) FOR THE LEFT SEAT PLT, SVRL PRACTICE AUTOROTATIONS WERE PERFORMED. THE CFI (RIGHT SEAT PLT) RPRTD THAT THE BFR WAS PROGRESSING VERY WELL UNTIL THE HELICOPTER TOUCHED DOWN ON A SOD TAXIWAY AFTER THE FINAL AUTOROTATION. HE RPRTD THE TOUCHDOWN WAS SOFT, BUT IMMEDIATELY AFTER TOUCHDOWN, AFT CYCLIC WAS APPLIED . . .' THE MAIN ROTOR BLADES CAME IN CONTACT WITH THE TAIL BOOM & SEVERED IT. THE CFI RPRTD THE ACCIDENT WAS UNEXPECTED & OCCURRED SO QUICKLY THAT HE WAS UNABLE TO INTERVENE. THE BFR PLT HAD A TOTAL FLT TIME OF 344 HRS WITH 310 HRS IN THIS MAKE & MODEL. THE CFI STATED THE WX WAS CLEAR WITH CALM WINDS.
Probable Cause: THE STUDENT'S IMPROPER USE OF THE CYCLIC CONTROL AND THE INSTRUCTOR'S (CFI'S) INADEQUATE SUPERVISION.
Accident investigation:
 |
|
Sources:
NTSB CHI90LA020
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 22-Mar-2024 18:39 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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