As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) HEARD A LOUD BANG IN FLIGHT AND PILOTS NOTICED MOVEMENT IN THE FLOATS, ACFT LANDED WITHOUT ANY PROBLEMS. (2) AN6-20A BOLTS HOLDING THE LUG-TIE ROD TO FUSELAGE WERE FOUND BROKEN. BOLTS WERE REPLACED AND FLOAT STRUTS AND SPREADER BARS AND ALL FLOAT ATTACH FITTINGS WERE INSPECTED SERVICEABLE.