Investigation number
199001959
Occurrence date
Location
"Bodoca" Agricultural Strip (12 km E Griffith)
Report release date
Report status
Final
Investigation type
Occurrence Investigation
Investigation status
Completed
Aviation occurrence category
Loss of control
Occurrence class
Accident
Highest injury level
None

The aircraft was landing downwind on an agricultural strip. During the landing roll the aircraft departed the left side of the strip following the failure of the right brake coming to rest inverted in a rice paddy. The investigation found the right brake master cylinder had buckled in the reservoir area. The buckling and resultant misalignment of the piston rod caused a bending failure of the rod and liberation of the piston with a subsequent loss of hydraulic pressure to the right brake. The reason for the failure of the master cylinder was not determined. There are no other recorded accidents involving master cylinder failures in this type of aircraft. The failure is therefore considered an isolated case.

Aircraft Details
Manufacturer
Grumman American Aviation Corp
Model
G-164
Registration
VH-HCR
Serial number
5B
Operation type
Aerial Work
Departure point
"Bodoca" NSW
Departure time
N/K
Destination
Bodoca NSW
Damage
Substantial