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The pilot was manoeuvring the helicopter, during a stock shooting operation, at a low speed, a low altitude and a high power setting when the tail rotor peddles jammed. The aircraft began to turn, uncontrollably, to the right. When the pilot reduced airspeed, in an attempt to avoid a tree, the aircraft touched down heavily. A spent cartridge case was found jammed in the operating levers of the left hand side (pilot's) tail rotor peddles. The helicopter had been checked, prior to DEPARTURE, for loose objects and none were found. The spent cartridge probably fell inside the cabin of the helicopter during that day's shoot. The shooter did not have a cartridge case catcher fitted to his gun. There was no rubber boot, around the base of the tail rotor peddles, which would prevent foreign objects falling through the hole, at the base of the peddles, and interferring with the aircraft's controls. The proximity of the aircraft to the ground and the trees, a typical hazard during stock shooting operations, prevented the pilot from taking recovery action before the aircraft collided with the ground.

Download Final Report
[ Download PDF: 23KB]
 
 
 
 
General details
Date: 02 October 1989 Investigation status: Completed 
Time: 1630 Investigation type: Occurrence Investigation 
Location:250 km North-East Derby  
State: Western Australia  
Release date: 11 December 1989 Occurrence category: Accident 
Report status: Final Highest injury level: Minor 
 
Aircraft details
Aircraft manufacturer: Robinson Helicopter Co 
Aircraft model: R22 
Aircraft registration: VH-KIS 
Serial number: 399 
Type of operation: Private 
Sector: Helicopter 
Damage to aircraft: Substantial 
Departure point:Chanley River WA
Departure time:1515
Destination:Chanley River WA
 
 
 
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