What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Witness statements support pilot's claim that the landing gear was fully extended upon touch down. Toward the end of landing roll-out all three landing gear retracted with selector in down position. During retrieval the landing gear freely extended and locked in down position, with electrical power on the landing gear actuator could be heard running. Considering the number of airworthiness directives and manufacturer's service bulletins involving the landing gear actuator, there is a distinct possibility an internal failure caused the landing gear collapse. When owner makes future arrangements for repairs, actuator identity, time in service, AD compliance status, and area of failure will be determined. A malfunction or defect report will be submitted and this 8020-23 updated.
As the FAA filed it
(-23) WITNESS STATEMENTS SUPPORT PILOT'S CLAIM THAT THE LANDING GEAR WAS FULLY EXTENDED UPON TOUCH DOWN. TOWARD THE END OF LANDING ROLL-OUT ALL THREE LANDING GEAR RETRACTED WITH SELECTOR IN DOWN POSITION. DURING RETRIEVAL THE LANDING GEAR FREELY EXTENDED AND LOCKED IN DOWN POSITION, WITH ELECTRICAL POWER ON THE LANDING GEAR ACTUATOR COULD BE HEARD RUNNING. CONSIDERING THE NUMBER OF AIRWORTHINESS DIRECTIVES AND MANUFACTURER'S SERVICE BULLETINS INVOLVING THE LANDING GEAR ACTUATOR, THERE IS A DISTINCT POSSIBILITY AN INTERNAL FAILURE CAUSED THE LANDING GEAR COLLAPSE. WHEN OWNER MAKES FUTURE ARRANGEMENTS FOR REPAIRS, ACTUATOR IDENTITY, TIME IN SERVICE, AD COMPLIANCE STATUS, AND AREA OF FAILURE WILL BE DETERMINED. A MALFUNCTION OR DEFECT REPORT WILL BE SUBMITTED AND THIS 8020-23 UPDATED.