1993-02-11: Piper PA-23-250 — Mountain Aviation — Ruston, LA

Casualties unknown • Ruston, LA, US

Probable cause

FAILURE AT A HYDRAULIC FITTING, WHICH RESULTED IN A HYDRAULIC LEAK, LOSS OF HYDRAULIC FLUID, AND SUBSEQUENT LOSS OF BRAKING ACTION DURING THE LANDING ROLL.

— NTSB Determination

Accident narrative

WHILE LANDING ON A RUNWAY WITH A DISPLACE THRESHOLD, BRAKING ACTION WAS LOST AND THE PILOT WAS UNABLE TO STOP THE AIRPLANE ON THE REMAINING RUNWAY. SUBSEQUENTLY, THE AIRPLANE RAN OFF THE END OF THE RUNWAY AND COLLIDED WITH THREE SMALL TREES, WHICH DAMAGED THE RIGHT WING. AN INSPECTION REVEALED A LEAK IN A BRAKE LINE FITTING HAD ALLOWED THE HYDRAULIC SYSTEM TO BE DEPLETED OF FLUID.

Frequently asked questions

What happened in the 1993-02-11 Piper PA-23-250 accident near Ruston, LA?

WHILE LANDING ON A RUNWAY WITH A DISPLACE THRESHOLD, BRAKING ACTION WAS LOST AND THE PILOT WAS UNABLE TO STOP THE AIRPLANE ON THE REMAINING RUNWAY. SUBSEQUENTLY, THE AIRPLANE RAN OFF THE END OF THE RUNWAY AND COLLIDED WITH THREE SMALL TREES, WHICH DAMAGED THE RIGHT WING. AN INSPECTION REVEALED A LEAK IN A BRAKE LINE…

What aircraft was involved and where did it happen?

The accident on 1993-02-11 involved a Piper PA-23-250, registration N6290Y, operated by Mountain Aviation, at Ruston, LA.

What was the probable cause of the accident?

FAILURE AT A HYDRAULIC FITTING, WHICH RESULTED IN A HYDRAULIC LEAK, LOSS OF HYDRAULIC FLUID, AND SUBSEQUENT LOSS OF BRAKING ACTION DURING THE LANDING ROLL.

Investigation report by the U.S. National Transportation Safety Board (NTSB) historical archive. Original record: https://carol.ntsb.gov/event/20001211X11825. This page is a structured re-presentation; facts and quotes are in the National Transportation Safety Board (NTSB), United States.

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