Service difficulty report · Wheel · Cessna 172M

Difficulty date
February 5, 2005
Submitted
February 8, 2005
Operation
General aviation
Aircraft
N13263
Make and model
Cessna 172M
Aircraft serial
17262622
Aircraft time
3,920 hours
Engine
Lyc O320E2D
Engine time
3,920 hours
Propeller
Mcauly 1C160CTM
Part
Wheel
Part number
D306001
Condition
Failed
Location
Zone 700
Part time
3,920 hours
Stage of operation
TX
How discovered
V
Nature of condition
O
Precautionary procedure
O

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

What was found

FOUND RT MAIN TIRE WAS LOCKED UP. PUT WHEEL ON DOLLY AND PULLED PLANE TO HANGER. CLOSER LOOK IN HANGER FOUND THAT RIM HAD BLOWN APART. DEFLATED TIRE AND LOOKED INSIDE RIM. FOUND PIECE BROKEN OUT OF CENTER SECTION OF RIM. CRACKS WERE FOUND AROUND BOLT HOLES OF RIM HALVES. EXAMINED BROKEN PIECE AND FOUND THAT PORTION OF CRACK WAS OLD, REST BEING NEW. WITH AIR PRESSURE IN THE TIRE, IT WAS TRYING TO BLOW IT APART. HAVE SEEN THIS PROBLEM ALOT WITH MFG WHEELS HAVING CRACKS AROUND BOLT HOLES. BUT NEVER SEEN ONE COME APART. YOU CAN ONLY SEE CRACKS WHEN CHANGING TIRE FROM INSIDE. THINK IT IS FROM OVER TIGHTENING THE BOLTS UPON ASSEMBLY WHEN CHANGING TIRES. ALSO, HAVING STEEL BOLTS THREADING INTO ALUMINUM HOUSING.

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