What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
On January 01, 2021 at 1210 CST, privacy data omitted landing at Longview (east TX regional) ggg, runway 18, entered a right skid, overcorrected and slid off left side of runway and came to stop in mud. Two persons were onboard with no injuries. The aircraft sustained minor damage to left main gear wheel-well and door and left flap.
The pilot stated they were flying from vrb to ggg airport for a fuel stop. The forecasted weather was between 1500-2000 ovc with light winds from the north west. Pilot was flying under supervision in accordance with CFR 61.64 limitation. The pilot asked ATC for the RNAV 31 because it is a longer runway with favorable winds, but ATC gave the option for ILS 13 (tailwind) or RNAV 18 (crosswind), and piloted opted for RNAV 18 6000' runway. METAR winds were reported 260/10KTS. The approach was visual from below 2000 ft. and wind correction was made to maintain centerline on landing and taxi. At touchdown the aircraft encountered a puddle of wet runway and immediately steered to the right. The pilot corrected with brakes, rudder and nose wheel steering and then the aircraft took a hard left turn, the brakes locked, and the aircraft went off the runway on the left side of runway 18 and come to a quick stop in muddy ground.
Examining the runway tire marks noted that after touchdown, the aircraft started a skid to the right with initial tire marks from the left main and nose tire only, with nose tire mark closer to left tire marks indicating the aircraft pointing to the left. Close to the right edge of the runway, the right tire made contact and the airplane turned left, crossing the runway, started a left skid with airplane nose rotating to a right heading before leaving the runway on the left side.
Central maintenance function (cmf) data downloaded from the aircraft indicates that at touchdown, the right main gear weight-on-wheels wow sensor registered ground state approximately eight seconds after left main gear (wow) sensor registering the ground state. After both left and right wow sensors registered in the ground state, both left and right wow sensors individually at separate times re-entered the air state for two seconds each. This is consistent with skid marks noted on the runway.
As the FAA filed it
ON JANUARY 01, 2021 AT 1210 CST, ^PRIVACY DATA OMITTED^ LANDING AT LONGVIEW (EAST TX REGIONAL) GGG, RUNWAY 18, ENTERED A RIGHT SKID, OVERCORRECTED AND SLID OFF LEFT SIDE OF RUNWAY AND CAME TO STOP IN MUD. TWO PERSONS WERE ONBOARD WITH NO INJURIES. THE AIRCRAFT SUSTAINED MINOR DAMAGE TO LEFT MAIN GEAR WHEEL-WELL AND DOOR AND LEFT FLAP.
THE PILOT STATED THEY WERE FLYING FROM VRB TO GGG AIRPORT FOR A FUEL STOP. THE FORECASTED WEATHER WAS BETWEEN 1500-2000 OVC WITH LIGHT WINDS FROM THE NORTH WEST. PILOT WAS FLYING UNDER SUPERVISION IN ACCORDANCE WITH CFR 61.64 LIMITATION. THE PILOT ASKED ATC FOR THE RNAV 31 BECAUSE IT IS A LONGER RUNWAY WITH FAVORABLE WINDS, BUT ATC GAVE THE OPTION FOR ILS 13 (TAILWIND) OR RNAV 18 (CROSSWIND), AND PILOTED OPTED FOR RNAV 18 6000' RUNWAY. METAR WINDS WERE REPORTED 260/10KTS. THE APPROACH WAS VISUAL FROM BELOW 2000 FT. AND WIND CORRECTION WAS MADE TO MAINTAIN CENTERLINE ON LANDING AND TAXI. AT TOUCHDOWN THE AIRCRAFT ENCOUNTERED A PUDDLE OF WET RUNWAY AND IMMEDIATELY STEERED TO THE RIGHT. THE PILOT CORRECTED WITH BRAKES, RUDDER AND NOSE WHEEL STEERING AND THEN THE AIRCRAFT TOOK A HARD LEFT TURN, THE BRAKES LOCKED, AND THE AIRCRAFT WENT OFF THE RUNWAY ON THE LEFT SIDE OF RUNWAY 18 AND COME TO A QUICK STOP IN MUDDY GROUND.
EXAMINING THE RUNWAY TIRE MARKS NOTED THAT AFTER TOUCHDOWN, THE AIRCRAFT STARTED A SKID TO THE RIGHT WITH INITIAL TIRE MARKS FROM THE LEFT MAIN AND NOSE TIRE ONLY, WITH NOSE TIRE MARK CLOSER TO LEFT TIRE MARKS INDICATING THE AIRCRAFT POINTING TO THE LEFT. CLOSE TO THE RIGHT EDGE OF THE RUNWAY, THE RIGHT TIRE MADE CONTACT AND THE AIRPLANE TURNED LEFT, CROSSING THE RUNWAY, STARTED A LEFT SKID WITH AIRPLANE NOSE ROTATING TO A RIGHT HEADING BEFORE LEAVING THE RUNWAY ON THE LEFT SIDE.
CENTRAL MAINTENANCE FUNCTION (CMF) DATA DOWNLOADED FROM THE AIRCRAFT INDICATES THAT AT TOUCHDOWN, THE RIGHT MAIN GEAR WEIGHT-ON-WHEELS WOW SENSOR REGISTERED GROUND STATE APPROXIMATELY EIGHT SECONDS AFTER LEFT MAIN GEAR (WOW) SENSOR REGISTERING THE GROUND STATE. AFTER BOTH LEFT AND RIGHT WOW SENSORS REGISTERED IN THE GROUND STATE, BOTH LEFT AND RIGHT WOW SENSORS INDIVIDUALLY AT SEPARATE TIMES RE-ENTERED THE AIR STATE FOR TWO SECONDS EACH. THIS IS CONSISTENT WITH SKID MARKS NOTED ON THE RUNWAY.