What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Upon completion of the landing rollout, the nose gear retracted into the wheelwell. The propeller and the nose gear doors impacted the runway surface. Maintenance has not been able to determine cause for the nose gear retraction. The pilot noted the landing gear had a green light when the gear was extended in flight. The powerpack is being removed for further inspection and testing. No other maintenance discrepancies have been noted.
As the FAA filed it
(-23) UPON COMPLETION OF THE LANDING ROLLOUT, THE NOSE GEAR RETRACTED INTO THE WHEELWELL. THE PROPELLER AND THE NOSE GEAR DOORS IMPACTED THE RUNWAY SURFACE. MAINTENANCE HAS NOT BEEN ABLE TO DETERMINE CAUSE FOR THE NOSE GEAR RETRACTION. THE PILOT NOTED THE LANDING GEAR HAD A GREEN LIGHT WHEN THE GEAR WAS EXTENDED IN FLIGHT. THE POWERPACK IS BEING REMOVED FOR FURTHER INSPECTION AND TESTING. NO OTHER MAINTENANCE DISCREPANCIES HAVE BEEN NOTED.