Service difficulty report · Bellcrank · Cessna 550

Difficulty date
February 18, 2009
Submitted
April 9, 2009
Operation
General aviation
Make and model
Cessna 550
Aircraft time
6,909 hours
Engine
Pwa JT15D4
Part
Bellcrank
Part number
553312535
Condition
Cracked
Location
Rudder
Part time
6,916 hours
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

(CAN) MX INS PHASE 5, VISUAL INSP OF RUDDER, FOUND PROBLEM WITH RUDDER BELLCRANK. NOTICED PAINT THAT WAS ROUGH LOOKING AND AROUND THE WELD OF THE LOWER WELDED ON PLATE. THE PAINT WAS CRACKED, CORROSION WAS EVIDENT THROUGH THE PAINT. NDT WAS REQUESTED TO CHECK THE DEPTH OF CORROSION AND LOOK FOR OTHER DEFECTS IN THIS AREA. NDT TECH CARRIED OUT INSP OF THE AREA WITH NDT TECHNIQUES AND ADVISED OF FINDINGS. CORROSION PRESENT AND A CRACK IN THE WELD. BELLCRANK IS A TORQUE TUBE WITH (3) PLATES AND ONE FLANGE WELDED ONTO IT.

More about the Cessna 550