SDR 99ZZZX4249

Service difficulty report · Bushing · Cessna 172R

Difficulty date
October 22, 1999
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N852CP
Make and model
Cessna 172R
Aircraft serial
17280485
Part
Bushing
Part number
05412024
Condition
Failed
Location
Rt Mlg
Part time
199 hours
Stage of operation
IN
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 ROUTINE INSPECTION OF THE AIRFRAME, THE RIGHT MAIN LANDING GEAR MOUNT BUSHING INNER MATERIAL WAS FOUND PRESSED COMPLETELY OUT OF THE BUSHING. POSSIBLE CAUSE OF FAILURE WAS DUE TO IMPROPER FIT BETWEEN LANDING GEAR LEG OUTSIDE DIAMETER AND BUSHING MATERIAL INSIDE DIAMETER. INSTALLATION OF BUSHING REQUIRED EXCESSIVE FORCE CAUSING A BREAKDOWN OF THE ADHESION BETWEEN THE BUSHING MATERIAL OUTSIDE DIAMETER AND THE BUSHING INSIDE DIAMETER. THE BUSHING MATERIAL WILL THEN LOOSEN AND EVENTUALLY WORK ITSELF COMPLETELY OUT OF THE BUSHING.

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