ASN Wikibase Occurrence # 368684
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| Date: | Tuesday 30 May 1989 |
| Time: | 09:45 LT |
| Type: |  Bell 47G-3B-1 |
| Owner/operator: | Valley Air |
| Registration: | N53SP |
| MSN: | 67-17111 |
| Engine model: | LYCOMING TVO-435-G1A |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Keystone Hgts., FL -
 United States of America
|
| Phase: | En route |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE PLT RPRTD THAT WHILE DEPG ON A SPRAYING OPN, THE HELICOPTER YAWED TO THE RGT & LEFT PEDAL APPLICATION WOULD NOT CORRECT THE YAW. HE THEN PERFORMED AN AUTOROTATIVE LANDING, SUBSEQUENTLY PULLING THE COLLECTIVE TO CUSHION IMPACT WITH TREES. A POST-ACDNT EXAM OF THE HELICOPTER REVEALED THE TAIL ROTOR DRIVE SHAFT HAD BECOME BENT BETWEEN THE #1 & #2 BEARINGS, ALLOWING THE FWD SHAFT TO PULL FROM THE COUPLING.
Probable Cause: THE TAIL ROTOR DRIVE SYSTEM BECAME DISCONNECTED DUE TO A BENT TAIL ROTOR DRIVE SHAFT. THE TREES CONTRIBUTED TO THE HELICOPTER DAMAGE.
Accident investigation:
 |
|
Sources:
NTSB MIA89LA165
History of this aircraft
Other occurrences involving this aircraft
| 20 June 1986 | N53SP | Private | 0 | Cleveland, MS | |
sub |
| 1 September 2000 | N53SP | Private | 0 | Canton, MS | |
w/o |
| Collision with pole or wires | ||||||
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Mar-2024 06:25 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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