As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE PROP ASSY WAS REMOVED FROM SERVICE DUE TO ALL FOUR BLADE DE-ICE BOOTS DEBONDING. THE CAUSE WAS DETERMINDED TO BE OIL AND GREASE MIGRATING BETWEEN THE INNER AND OUTER SLEEVE AND EXITING UNDER THE BLADE CUFF. AFTER DISASSEMBLY FOR SHIPMENT OIL WAS OBSERVED IN THE HUB AREA. COMPLETE ASSY WAS THEN SHIPPED TO DOWTY AEROSPACE STIERLING FOR REPAIR. THE PROP WAS REPAIRED AND RETURNED TO SERVICE. (M)