Service difficulty report · Bolt · Cessna 208B

Difficulty date
February 23, 2014
Submitted
September 14, 2015
Operation
General aviation
Make and model
Cessna 208B
Aircraft time
10,202 hours
Engine
Pwa PT6A42
Part
Bolt
Part number
06901900
Condition
Broken
Location
Anchor
Component
Cylinder · Clevelandpnu
Component part number
06111800
Stage of operation
LD
How discovered
O
Nature of condition
E
Precautionary procedure
O

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

What was found

(CAN) ON LANDING, PILOT COMPLAINED ABOUT RT WHEEL BEING LOCKED UP, THEN LETTING LOOSE AGAIN. ON INSPECTION, FOUND BRAKE CYLINDER ASSY, CALIPER LOOSE ON DISK. BOTTOM RETAINING PIN, ANCHOR BOLT WAS MISSING, WITH THE THREAD AND LOCKNUT MISSING AS WELL. THE TOP LOCKNUT WAS STILL IN PLACE, BUT THE PIN WAS BROKEN AT THE THREAD. THE PIN FLOATED INSIDE THE ASSY WHEN INSPECTED. SO THE BOTTOM PIN BEING LOOSE, PUSHED ITSELF OTBD IN TO THE SPINNING WHEEL AND SNAGGED ON ONE OF THE WHEEL HALF BOLT HEADS, LOCKING UP THE WHEEL. THEN THE PIN BROKE IN HALF OR BEND AND WAS ABLE TO DISLODGE AND FREE THE WHEEL. THE PIN WAS NOT RECOVERED. TIRE, TORQUE LINK PLATE AND BRAKE DISK ARE SCRAP.

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