What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) PIC reported that while landing at a private grass strip airport he lost directional control during the landing roll-out due to the runway terrain having an extreme down slope on the left side. The left wheel went down the slope and right rudder did not cause any response in moving back to the right. The aircraft continued down the slope and then back up an incline where the landing gear and engine came in contact with the upslope terrain causing minor damage.
As the FAA filed it
(-23) PIC REPORTED THAT WHILE LANDING AT A PRIVATE GRASS STRIP AIRPORT HE LOST DIRECTIONAL CONTROL DURING THE LANDING ROLL-OUT DUE TO THE RUNWAY TERRAIN HAVING AN EXTREME DOWN SLOPE ON THE LEFT SIDE. THE LEFT WHEEL WENT DOWN THE SLOPE AND RIGHT RUDDER DID NOT CAUSE ANY RESPONSE IN MOVING BACK TO THE RIGHT. THE AIRCRAFT CONTINUED DOWN THE SLOPE AND THEN BACK UP AN INCLINE WHERE THE LANDING GEAR AND ENGINE CAME IN CONTACT WITH THE UPSLOPE TERRAIN CAUSING MINOR DAMAGE.