What was found
A NEW PROPELLER WAS INSTALLED ON 10/23/2008. ON 12/29/2008, AFTER 10 HOURS, 2 DIFFERENT CRACKS WERE FOUND AT MOUNTING SCREW HOLES AT THE BLADE CUTOUT IN SPINNER DOME PN D-5769-1P. A WARRANTY REPLACEMENT WAS SENT PN D-5769-1P. A WARRANTY REPLACEMENT WAS SENT PN D-5769-1P, SN 0810591C AND INSTALLED. ON 3/20.2009, AFTER 22 HOURS THE REPLACEMENT SPINNER WAS REMOVED DUE TO CRACKING AT THE BLADE CUTOUT IN THE SPINNER DOME. A THIRD REPLACEMENT WAS SENT PN: D-5769-1P, SN 0805155C AND INSTALLED IAW MFG SERVICE EVALUATION REQUEST NR HC-SER-61-067. (K)