What was found
UPON DISASSEMBLY OF THE PROPELLER AND REMOVAL OF BLADES, THE BLADES REMOVED WERE FOUND TO BE NON APPROVED BLADES FOR THIS ACFT INSTALLATION. THESE BLADES WERE ORIGIONALY T10173A-6Q. ALSO, ACCORDING TO MFG THERE IS NO APPROVED TIP DWG IN MANUAL 133C FOR A T10173-8R BLADE. SO WHO EVER CUT THESE BLADES DOWN FROM A -6Q HAD NO DATA TO GO BY. THESE BLADES WILL BE REPLACED WITH THE PROPER APPROVED BLADES.