Warner Propeller & Governor Co., LLC

5102 S. Country Club Rd., Tucson, AZ 85706

520.294.5671

FAA Certified Repair Station W59R659N

Tour continued from Stripping

Inspections

Some parts require mandatory replacement at overhaul or due to Service Bulletins or A/Ds.

Parts are visually inspected for damage, corrosion, and defects. Depending on the part, some damage and corrosion can be worked out. Parts are then dimensionally inspected.  

Blade width, thickness, angles, and face alignment are checked at various blade stations. If the face alignment (the fore and aft bend) or angles (twist) of the blade are out of manufacturer's requirements, it is corrected at this time.  This is a time consuming job, but when done correctly, will aide in making a smoother flying propeller. 

Parts ready for visual inspection             Blade being dimensionally inspected         Blade reference stations laid out 

Once the parts have passed the visual inspections, they move on to NDT or Non Destructive Testing. The following methods are used for finding cracks and other defects.  We use three forms of NDT- Eddy Current, Dye Penetrant, and Magnetic Particle. 

To learn more about these processes click on the links below the pictures.  Click your back button to return to this page.

Eddy Current                                         Dye Penetrant                                          Magnetic Particle 

Click here to continue overhaul tour to next page

Updated 11/05.