SDR CWQR200706

Service difficulty report · Plate · Cessna 560CESSNA

Difficulty date
July 25, 2007
Submitted
July 30, 2007
Operation
General aviation
Aircraft
N801QS
Make and model
Cessna 560CESSNA
Aircraft serial
5600601
Aircraft time
3,987 hours
Engine
Pwa PW535A
Part
Plate
Part number
663322513
Condition
Rusted
Location
Rudder
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 A PHASE 1-4 INSPECTION, NOTICED A RUST STAIN COMING FROM THE LOWER RUDDER BEARING PLATE ASSY (LOWEST HINGE POINT). UPON DISASSEMBLE, FOUND THE DRAIN HOLE FROM THE RUDDER TORQUE TUBE WAS DRAINING INTO THE LOWER BEARING PLATE ASSY. THIS IS DUE TO A NEW DESIGN OF THE PLATE ASSY, THE NEW ONE IS BEEFED UP AND HAS A BUILT UP AREA AROUND THE BEARING, THAT DIRECTS WATER TO THE BEARING, UNLIKE THE PREVIOUS DESIGN THAT WAS A FLAT PLATE AND ALLOWED WATER TO DRAIN AWAY FROM THE BEARING. SERVICE CONDITION REPORT HAS BEEN FILED WITH MFG UNDER NR 305034.