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The pilot reported that the aircraft brakes were serviceable prior to DEPARTURE. However, when braking was attempted during the landing roll there was no reaction, and no pressure was felt through the brake handle. The aircraft overran the end of the strip and collided with a fence. The brake master cylinder valve seal had failed, allowing the piston to extend further into the cylinder than normal. The piston had in turn become jammed by corrosion products.

Download Final Report
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General details
Date: 13 April 1986 Investigation status: Completed 
Time: 1400  
Location:Mitchelton (12km NW Mangalore) Investigation type: Occurrence Investigation 
State: Victoria Occurrence type: Runway excursion 
Release date: 24 December 1986 Occurrence class: Operational 
Report status: Final Occurrence category: Accident 
 Highest injury level: None 
Aircraft details
Aircraft manufacturer: Victa Ltd 
Aircraft model: 100 
Aircraft registration: VH-MUJ 
Type of operation: Private 
Damage to aircraft: Substantial 
Departure point:Penfield VIC
Departure time:1400
Destination:Mitchelton VIC
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