Aviation safety investigations & reports

Piper PA60, VH-NOA, Armidale NSW, 17 March 1987

Investigation number:
Status: Completed
Investigation completed


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Shortly after touchdown the left wing began to drop and the aircraft veered off the runway. It came to rest after colliding with a runway light and a culvert. Inspection revealed that the castellated nut from the left gear torque link pivot bolt was missing. This allowed the lower torque link to rotate with the wheel and separate from the upper torque link. It was evident that a split pin which should have locked the castellated nut had not been in place for a considerable time, thus allowing the nut to work loose. However, the reason the pin was not in place could not be positively established.

Download Final Report
[Download  PDF: 22KB]
General details
Date: 17 March 1987   Investigation status: Completed  
Time: 834    
Location: Armidale    
State: New South Wales    
Release date: 17 July 1987   Occurrence category: Accident  
Report status: Final   Highest injury level: None  

Aircraft details

Aircraft details
Aircraft manufacturer Piper Aircraft Corp  
Aircraft model PA-60  
Aircraft registration VH-NOA  
Type of operation Charter  
Damage to aircraft Substantial  
Departure point Tamworth NSW  
Departure time 0834  
Destination Armidale NSW