SDR 96ZZZX2565

Service difficulty report · Stud · Cessna 310R

Difficulty date
April 30, 1996
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N123RA
Make and model
Cessna 310R
Aircraft serial
310R0221
Propeller
Mcauly 3AF32C87
Part
Stud
Condition
Over Torque
Location
Propeller
Stage of operation
IN
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

THESE MCCAULEY PROPELLERS COME PLACARDED TO LUBE TORQUE TO 40-45 FEET/POUNDS. THE CESSNA MM SPECIFIES 80-85 FEET/POUNDS DRY TORQUE. THE CESSNA TECH SAID BOTH ARE ACCEPTABLE, BUT DO NOT MIX THE TWO. TECH SAID 80 POUNDS LUBE TORQUE WILL PULL THE STUD OUT OF THE HUB. THIS COULD BE CONFUSING, AND HAS CAUSED EXPENSIVE PROBLEMS.

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