PROPELLER BULLETIN

Sensenich Propeller

ENGINEERING MEMO 4781

JANUARY 1980

IT HAS COME TO OUR ATTENTION THAT SENSENICH FIXED-PITCH METAL PROPELLERS ARE SOMETIMES MODIFIED BEYOND THE LIMITS IMPOSED BY THE RESPECTIVE PROPELLER TYPE CERTIFICATE DATA SHEETS. SUCH MODIFICATION IS OFTEN MADE WHERE PROPELLERS ARE INSTALLED ON EXPERIMENTAL AIRCRAFT.

THIS PRACTICE CAN BE DANGEROUS AND IS NOT APPROVED BY SENSENICH CORPORATION. A PROPELLER IS CONSIDERED BY SENSENICH TO BE UNAIRWORTHY AFTER IT HAS BEEN REWORKED BEYOND THE LIMITS OF THE APPLICABLE TYPE CERTIFICATE DATA SHEET AND/OR THE LIMITS PUBLISHED IN THE SENSENICH METAL PROPELLER REPAIR MANUAL.

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