What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23 2Nd amendment) the pilot said he entered a right base to runway 33 and touched down on runway 33 with more than 3000 feet remaining and said that at 50 to 55 knots the aircraft suddenly yawed 60 to 90 degrees to the right. The pilot stated he recovered and the aircraft again suddenly yawed 60 to 90 degrees to the right and he again recovered and the aircraft stayed on the runway. N2SM ultimately ran off the right side of runway 33 and stopped in a ditch 50 feet from the north end of that runway. Skid marks for all four main tires that start on the runway approximately 300 feet from the edge of the ditch. Those four skid marks on the runway for the left and right main gear led directly through the grass on the right side of the runway and across the NE end stub taxiway and to the aircraft in the ditch on the north end. NTSB form 6120.1/2 completed by the pilot states that further investigation of the aircraft after release by the FAA reportedly revealed the right low pitch system was not completely assembled and the left brake line was leaking/ruptured.
As the FAA filed it
(-23 2ND AMENDMENT) THE PILOT SAID HE ENTERED A RIGHT BASE TO RUNWAY 33 AND TOUCHED DOWN ON RUNWAY 33 WITH MORE THAN 3000 FEET REMAINING AND SAID THAT AT 50 TO 55 KNOTS THE AIRCRAFT SUDDENLY YAWED 60 TO 90 DEGREES TO THE RIGHT. THE PILOT STATED HE RECOVERED AND THE AIRCRAFT AGAIN SUDDENLY YAWED 60 TO 90 DEGREES TO THE RIGHT AND HE AGAIN RECOVERED AND THE AIRCRAFT STAYED ON THE RUNWAY. N2SM ULTIMATELY RAN OFF THE RIGHT SIDE OF RUNWAY 33 AND STOPPED IN A DITCH 50 FEET FROM THE NORTH END OF THAT RUNWAY. SKID MARKS FOR ALL FOUR MAIN TIRES THAT START ON THE RUNWAY APPROXIMATELY 300 FEET FROM THE EDGE OF THE DITCH. THOSE FOUR SKID MARKS ON THE RUNWAY FOR THE LEFT AND RIGHT MAIN GEAR LED DIRECTLY THROUGH THE GRASS ON THE RIGHT SIDE OF THE RUNWAY AND ACROSS THE NE END STUB TAXIWAY AND TO THE AIRCRAFT IN THE DITCH ON THE NORTH END. NTSB FORM 6120.1/2 COMPLETED BY THE PILOT STATES THAT FURTHER INVESTIGATION OF THE AIRCRAFT AFTER RELEASE BY THE FAA REPORTEDLY REVEALED THE RIGHT LOW PITCH SYSTEM WAS NOT COMPLETELY ASSEMBLED AND THE LEFT BRAKE LINE WAS LEAKING/RUPTURED.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.