SDR KTEG2014FA0000051

Service difficulty report · Arm · Airtrc AT802A

Difficulty date: January 23, 2014
Submitted: January 31, 2014
Operation: General aviation
Aircraft: N802PR
Make and model: Airtrc AT802A
Aircraft serial: 802A0533
System (JASC): 6120 · Propeller Controlling System
Part: Arm
Condition: Lack Of Lube
Location: Beta Block Assy
Stage of operation: IN
How discovered: V
Nature of condition: W
Precautionary procedure: K

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

What was found

BETA BLOCK ASSY, PART OF BETA ARM ASSY, WAS NOT LUBRICATED AT INSTALLATION. LACK OF LUBRICATION CAN CAUSE THE ARM ASSY TO FREEZE UP IN THE BETA ARM. IF IT CAN NOT ROTATE, IT WILL WEAR INTO THE BETA RING CAUSING EXCESSIVE WEAR. THIS THE THE 3RD ACFT THIS WAS FOUND ON. THE SAME CONDITION EXISTED ON OTHER ACFT. ALL OF THE ACFT WERE "NEW", IE: NO MX PERFORMED SINCE MANUFACTURE. LUBRICATE THESE COMPONENTS WITH "ANTI-SEIZE" LUBRICANT SO THAT OPS PROBLEMS DO NOT EXIST.