What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) During seaplane flight instruction, the left float struck an object in the water immediately after a normal landing. The bottom of the left float was punctured and the float began to take on water. The pilot called 911 for assistance because pumping the water out of the float was not preventing the left float from sinking and the airplane rolling to the left. King county sheriff boats came to assist. The aircraft was raised before it went under the surface. Supported by the boats and flotation devices it was towed back to the seaplane base. No personal injuries.
As the FAA filed it
(-23) DURING SEAPLANE FLIGHT INSTRUCTION, THE LEFT FLOAT STRUCK AN OBJECT IN THE WATER IMMEDIATELY AFTER A NORMAL LANDING. THE BOTTOM OF THE LEFT FLOAT WAS PUNCTURED AND THE FLOAT BEGAN TO TAKE ON WATER. THE PILOT CALLED 911 FOR ASSISTANCE BECAUSE PUMPING THE WATER OUT OF THE FLOAT WAS NOT PREVENTING THE LEFT FLOAT FROM SINKING AND THE AIRPLANE ROLLING TO THE LEFT. KING COUNTY SHERIFF BOATS CAME TO ASSIST. THE AIRCRAFT WAS RAISED BEFORE IT WENT UNDER THE SURFACE. SUPPORTED BY THE BOATS AND FLOTATION DEVICES IT WAS TOWED BACK TO THE SEAPLANE BASE. NO PERSONAL INJURIES.