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Only one known witness saw the aircraft in last few seconds before impact. She was attracted to the aircraft by loud engine noise. Initially she could hear but not see the aircraft. She relocated just in time to briefly see the aircraft performing snap rolls to the left while descending towards the ground at an angle of about 45 degrees. The aircraft was travelling in a westerly direction across her view from right to left. It disappeared behind a row of Cyprus trees and impacted the ground about 300 metres north
west of the witness.

Wreckage indicated that the aircraft was rotating rapidly to the left when it impacted steep nose down. Propeller damage suggests that the engine was at a low power setting at impact. No fault has been detected with the engine. The right rear rudder cable attachment to the right rudder horn was found to have pulled out of the Nicopress copper sleeve/swage. A similar disconnect was found with the left rudder cable at the pilot-in-command's left pedal. It has been determined that the correct copper sleeves were used on the one eighth diameter rudder cables but the swaging had been carried out with the Nicopress jaws that were appropriate for a five thirty second inch cable. Four Nicopress copper sleeves were underswaged. Subsequent trials with cables and end fittings indicate that the improperly constructed rudder cables probably failed at impact and not in flight. The reason why the two approved low level aerobatic pilots on board failed to recover the aircraft remains unknown.

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General details
Date: 07 November 1992 Investigation status: Completed 
Time: 1707 ESuT  
Location   (show map):4km NE Clyde Investigation type: Occurrence Investigation 
State: Victoria Occurrence type: Loss of control 
Release date: 21 June 1994 Occurrence class: Operational 
Report status: Final Occurrence category: Accident 
 Highest injury level: Fatal 
Aircraft details
Aircraft manufacturer: Pitts Aviation Enterprises 
Aircraft model: S-2 
Aircraft registration: VH-SZA 
Serial number: 2113 
Type of operation: Private 
Damage to aircraft: Destroyed 
Departure point:Moorabbin VIC
Departure time:1652 ESuT
Destination:Moorabbin VIC
Crew details
RoleClass of licenceHours on typeHours total
Fatal: 11NaN
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Last update 13 May 2014