What was found
(AUS) PROPELLER HUB FAULTY. DURING COMPLIANCE WITH AD/PMC/47 IT WAS FOUND THAT THE MOUNTING STUDS HAD BEEN INCORRECTLY SEALED. SILASTIC MATERIAL WAS USED FOR SEALING RATHER THAN THE CORRECT PROCEDURE AS INDICATED IN MFG SL 1993-17. THE HUB WAS ALSO INCORRECTLY STAMPED AS STILL BEING A GREASE FILLED HUB. PROPELLER PISTON ALSO CONTAINED A NON-APPROVED REPAIR. UNAPPROVED PROCEDURE. PERSONNEL/MAINTENANCE ERROR.