Service difficulty report · Torque Tube · Casa CN235300

Difficulty date
May 28, 2020
Submitted
November 13, 2020
Operation
Air carrier
Aircraft
N10180
Make and model
Casa CN235300
Aircraft serial
C139
Aircraft time
5,212 hours, 5,273 cycles
Part
Torque Tube
Part number
344663300
Condition
Undertorqued
Location
Elevator
Part time
5,212 hours, 5,273 cycles
Stage of operation
IN
How discovered
V
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

DURING INSPECTION, DISCOVERED THE LT AND RT ELEVATOR TORQUE TUBES HAD MOVEMENT. UPON FURTHER INVESTIGATION, DISCOVERED RETAINING COLLAR WAS NOT PROPERLY TORQUES AND NO LOCK RING SAFETY HOLE PRESENT FOR LOCK RING ENGAGEMENT. SUBMITTED AIRBUS DS ENGINEERING REQUEST AND RECEIVED MANUFACTURES INSTRUCTIONS IN RESOLVING/CORRECTING DISCREPANCY. DISCOVERED TO BE OEM MANUFACTURING DEFECT.

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