Service difficulty report · Hub

Difficulty date
December 17, 2009
Submitted
December 21, 2009
Operation
General aviation
Filed by
FCPR831D
Atlantic Aviation Oregon General Aviation Services
Propeller
Mcauly 3FF32C501
Part
Hub
Part serial
757111
Condition
Corroded
Location
Propeller
Component
Propeller
Component part number
3FF32C501A
Stage of operation
IN
How discovered
9
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

HUB MOUNTING HOLES HAVE BEEN MODIFIED WITH A THREADED INSERT. 1 INSERT HAS BACKED OUT OF MOUNTING HOLE. INSERT IS NOT A HELI-COIL WHICH IS CALLED OUT IN THE MANUAL. ANTI-SIEZE WAS USED ON ROD PINS AND ACCU. ARMS, BUSHINGS, THE REQUIRED LUBE IS ORELUBE K2 IAW MANUAL. BLADE K51362AND K48622 HAVE DAMAGE IN AREA D-E WHICH IS NOT PERMITTED IAW THE MANUAL, DISPOSITION OF THESE BLADES IS SCRAP. HUB HAS CORROSION PITTING IN BEARING RADIUS OF BLADE SOCKET. A REPAIRED AREA NEAR THE BEARING RACE SEATING AREA. REPAIRS ARE NOT ALLOWED WITH IN 1.00” OF THE RACE SEATING AREA IAW THE MANUAL. DISPOSITION OF HUB IS SCRAP. BLADE HAS CORROSION IN O-RING GROOVE WHICH IS NOT PERMITTED IAW THE MANUAL, DISPOSITION OF BLADE IS SCRAP.