What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On 9/7/2020 at about 1249 AZ time, N186GC went off the runway at Grand Canyon bar ten airport in whitmore, AZ.
PIC duty on at 0520 that am and it was his 4th flight of the day. PIC had 8.77 hour duty day on 9/6 with flight hours of 2.73. Pilot was off 2 days before that.
There were 7 passengers on board the aircraft. Aircraft left boulder city and was flying direct to 1Z1.
Review of manifest, weight and balance was within limits and so was the CG. Landing weight was 7865 and max landing weight for aircraft is 8500.
Weather reported by pilot: clear skies and calm winds
Upon landing the aircraft was pulling to the left
PIC stated: "I applied right rudder but the aircraft kept drifting left. When released rudder pressure to apply the brakes, the aircraft left the runway at approximately mid field and impacted some rocks"
PIC and passengers evacuated. No injuries noted.
Damaged was noted to the left wheel, propeller and right wing.
On 9/9 pmi interviewed the dom and was there during the disassemble of the left main tire.
Pmi provided the following information:
"The wheel and tire assy. Was disassembled on a table with two wheel halves, spacer, brake drum, attached nuts & bolts and contained a rubber inner tube.
Upon inspection of the tire, the amount of tread was still was serviceable as the tire had been changed on 9/4/2020. There were a few cuts in the tread but these cuts had not penetrated into the inner tube. FAA form 8130-3 (airworthiness approval tag) shows this s/n (82802455) as a new part that came from goodyear tire & rubber co.
Upon inspection of the inner tube, the valve stem was completely sheared off and found lying inside of the tire. No other damage to the inner tube was noted."
As the FAA filed it
ON 9/7/2020 AT ABOUT 1249 AZ TIME, N186GC WENT OFF THE RUNWAY AT GRAND CANYON BAR TEN AIRPORT IN WHITMORE, AZ.
PIC DUTY ON AT 0520 THAT AM AND IT WAS HIS 4TH FLIGHT OF THE DAY. PIC HAD 8.77 HOUR DUTY DAY ON 9/6 WITH FLIGHT HOURS OF 2.73. PILOT WAS OFF 2 DAYS BEFORE THAT.
THERE WERE 7 PASSENGERS ON BOARD THE AIRCRAFT. AIRCRAFT LEFT BOULDER CITY AND WAS FLYING DIRECT TO 1Z1.
REVIEW OF MANIFEST, WEIGHT AND BALANCE WAS WITHIN LIMITS AND SO WAS THE CG. LANDING WEIGHT WAS 7865 AND MAX LANDING WEIGHT FOR AIRCRAFT IS 8500.
WEATHER REPORTED BY PILOT: CLEAR SKIES AND CALM WINDS
UPON LANDING THE AIRCRAFT WAS PULLING TO THE LEFT
PIC STATED: "I APPLIED RIGHT RUDDER BUT THE AIRCRAFT KEPT DRIFTING LEFT. WHEN RELEASED RUDDER PRESSURE TO APPLY THE BRAKES, THE AIRCRAFT LEFT THE RUNWAY AT APPROXIMATELY MID FIELD AND IMPACTED SOME ROCKS"
PIC AND PASSENGERS EVACUATED. NO INJURIES NOTED.
DAMAGED WAS NOTED TO THE LEFT WHEEL, PROPELLER AND RIGHT WING.
ON 9/9 PMI INTERVIEWED THE DOM AND WAS THERE DURING THE DISASSEMBLE OF THE LEFT MAIN TIRE.
PMI PROVIDED THE FOLLOWING INFORMATION:
"THE WHEEL AND TIRE ASSY. WAS DISASSEMBLED ON A TABLE WITH TWO WHEEL HALVES, SPACER, BRAKE DRUM, ATTACHED NUTS & BOLTS AND CONTAINED A RUBBER INNER TUBE.
UPON INSPECTION OF THE TIRE, THE AMOUNT OF TREAD WAS STILL WAS SERVICEABLE AS THE TIRE HAD BEEN CHANGED ON 9/4/2020. THERE WERE A FEW CUTS IN THE TREAD BUT THESE CUTS HAD NOT PENETRATED INTO THE INNER TUBE. FAA FORM 8130-3 (AIRWORTHINESS APPROVAL TAG) SHOWS THIS S/N (82802455) AS A NEW PART THAT CAME FROM GOODYEAR TIRE & RUBBER CO.
UPON INSPECTION OF THE INNER TUBE, THE VALVE STEM WAS COMPLETELY SHEARED OFF AND FOUND LYING INSIDE OF THE TIRE. NO OTHER DAMAGE TO THE INNER TUBE WAS NOTED."
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.