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The rudder failed when the pilot initiated a climb at the end of a spray run. The rudder was bent over at the top by about 45 degrees, but the pilot was able to maintain control of the aircraft and carry out a safe landing at Dalby. The rudder spar had failed above the top hinge point near a weld which was associated with a modification to replace the single point hinge with a three point hinge. The failure of the spar was caused by the pressure of a crack which had not been detected prior to the welding of the upper hinge modification. This accident was not the subject of an on-site investigation.

Download Final Report
[ Download PDF: 22KB]
General details
Date: 26 January 1988 Investigation status: Completed 
Time: 600  
Location:18 km SE Dalby Investigation type: Occurrence Investigation 
State: Queensland Occurrence type: Airframe - Other 
Release date: 20 December 1988 Occurrence class: Technical 
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Snow Aeronautical 
Aircraft model: S2 
Aircraft registration: VH-FCN 
Serial number: 600-1363D 
Type of operation: Aerial Work 
Damage to aircraft: Substantial 
Departure point:Dalby QLD
Departure time:0530
Destination:Dalby QLD
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