BUTLER, PA, USA
N600A
PIPER PA-22 TRIPACER
THE ACFT RAN OFF THE RWY INTO A 4 FT DITCH AND NOSED OVER WHILE TAXIING. THE PLT SAID THE 'BRAKES GAVE WAY' WHILE HE WASTAXIING DOWN RWY 17 AFTER LANDING. WHEN HE REALIZED THE BRAKES WERE NOT HOLDING HE SHUT OFF THE ENGINE BY THE MIXTURE CONTROL. TO AVOID GOING ONTO A HIWAY THE PLT TURNED LEFT OFF THE SIDE OF THE RWY. THE NOSE GEAR HIT A DITCH AND THE ACFTNOSED OVER. THE BRAKES WERE EXAMINED AFTER THE ACCIDENT AND THEY WERE SOFT AND SPONGY WHEN APPLIED. HYDRAULIC FLUID LEAKED FROM THE VENT HOLE IN THE MASTER CYLINDER. IT WAS FOUND THAT THE DIAPHRAGM HAD SPLIT IN THE CYLINDER CAUSING LOSSOF FLUID AND BRAKING ACTION.
Source: NTSB Aviation Accident Database
Aviation Accidents App
In-Depth Access to Aviation Accident Reports
