What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On April 16, 2018 at approximately 1420 local, Mooney N6868, registered to ^Mr. William m. pearson^, landed on runway 30 where it ran out of runway and rolled off the end at Twin Oaks Airport (T94). The aircraft came to rest on heimer road, a residential road on the departure end of runway 30. The flight originated from angelina county airport (klfk)
The aircraft experienced damage to the wings and spar, nosewheel assembly, fuel tanks, rudder and vertical stabilizer, propeller and engine. There were no injuries to the two souls on board.
The reported weather for San Antonio international airport (ksat), the nearest reporting airport, called for winds from 160 at 17 gusting to 24. Calculations from these reported winds show that an aircraft landing on runway 30 would experience tailwinds from 13-19 knots and right crosswinds from 11-16 knots.
^Mr. Pearson^ stated in his interview that he purposely landed on runway 30 because it is standard practice to land on runway 30 with its upslope, even with light tailwinds, than to land on runway 12 with its downslope. FAA chart supplement data does not show any slope information for T94, but airnav shows a gradient of 1.9%. It was discovered during the on-site investigation that the runway did indeed have a slope, however it is undetermined if it is 1.9%. ^Mr. Pearson^ also stated that his cutoff point was 10 knots of tailwind. At that point, he would normally choose to land on runway 12. ^Mr. Pearson^ mentioned he calculated the tailwind at 10 knots and that the ground roll would require the entire length of the runway, approximately 2225'.
As the FAA filed it
ON APRIL 16, 2018 AT APPROXIMATELY 1420 LOCAL, MOONEY N6868, REGISTERED TO ^MR. WILLIAM M. PEARSON^, LANDED ON RUNWAY 30 WHERE IT RAN OUT OF RUNWAY AND ROLLED OFF THE END AT TWIN OAKS AIRPORT (T94). THE AIRCRAFT CAME TO REST ON HEIMER ROAD, A RESIDENTIAL ROAD ON THE DEPARTURE END OF RUNWAY 30. THE FLIGHT ORIGINATED FROM ANGELINA COUNTY AIRPORT (KLFK)
THE AIRCRAFT EXPERIENCED DAMAGE TO THE WINGS AND SPAR, NOSEWHEEL ASSEMBLY, FUEL TANKS, RUDDER AND VERTICAL STABILIZER, PROPELLER AND ENGINE. THERE WERE NO INJURIES TO THE TWO SOULS ON BOARD.
THE REPORTED WEATHER FOR SAN ANTONIO INTERNATIONAL AIRPORT (KSAT), THE NEAREST REPORTING AIRPORT, CALLED FOR WINDS FROM 160 AT 17 GUSTING TO 24. CALCULATIONS FROM THESE REPORTED WINDS SHOW THAT AN AIRCRAFT LANDING ON RUNWAY 30 WOULD EXPERIENCE TAILWINDS FROM 13-19 KNOTS AND RIGHT CROSSWINDS FROM 11-16 KNOTS.
^MR. PEARSON^ STATED IN HIS INTERVIEW THAT HE PURPOSELY LANDED ON RUNWAY 30 BECAUSE IT IS STANDARD PRACTICE TO LAND ON RUNWAY 30 WITH ITS UPSLOPE, EVEN WITH LIGHT TAILWINDS, THAN TO LAND ON RUNWAY 12 WITH ITS DOWNSLOPE. FAA CHART SUPPLEMENT DATA DOES NOT SHOW ANY SLOPE INFORMATION FOR T94, BUT AIRNAV SHOWS A GRADIENT OF 1.9%. IT WAS DISCOVERED DURING THE ON-SITE INVESTIGATION THAT THE RUNWAY DID INDEED HAVE A SLOPE, HOWEVER IT IS UNDETERMINED IF IT IS 1.9%. ^MR. PEARSON^ ALSO STATED THAT HIS CUTOFF POINT WAS 10 KNOTS OF TAILWIND. AT THAT POINT, HE WOULD NORMALLY CHOOSE TO LAND ON RUNWAY 12. ^MR. PEARSON^ MENTIONED HE CALCULATED THE TAILWIND AT 10 KNOTS AND THAT THE GROUND ROLL WOULD REQUIRE THE ENTIRE LENGTH OF THE RUNWAY, APPROXIMATELY 2225'.
NTSB investigation
The NTSB’s investigation of this event, with its probable cause and findings. Matched to this report by N-number and date.