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The nose landing gear collapsed during the take off roll causing both propellers to strike the runway whilst operating at full power. Subsequent investigation revealed that a rigid hydraulic line had failed causing the loss of all hydraulic pressure. This lack of hydraulic pressure probably allowed vibrations to unlock the nose leg over-centre lock during the take off roll. Examination of the failed hydraulic line revealed that there was thinning of the pipe wall at the failure where the pipe was supported by a 'P' clamp, possibly the result of corrosion. Significant Factors: Failure of a hydraulic pressure pipe, possibly due to corrosion, resulted in loss of all hydraulic pressure. The nose landing gear over-centre lock probably unlocked due to vibration.
 
General details
Date: 27 August 1993 Investigation status: Completed 
Time: 18:00 EST Investigation type: Occurrence Investigation 
 Occurrence class: Technical 
Release date: 30 October 1993 Occurrence category: Accident 
Report status: Final  
 
Aircraft details
Aircraft manufacturer: Piper Aircraft Corp 
Aircraft model: PA-34-200 
Aircraft registration: VH-ESY 
Sector: Piston 
Damage to aircraft: Substantial 
Departure point:Jerilderie NSW
Destination:Wagga Wagga NSW
 
 
 
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Last update 24 July 2015