SDR 95ZZZX3487

Service difficulty report · Trunnion · Conaer LA4200

Difficulty date
May 25, 1995
Submitted
March 26, 2000
Operation
General aviation
Aircraft
N8001N
Make and model
Conaer LA4200
Aircraft serial
995
Part
Trunnion
Part number
24103021
Condition
Corroded
Location
Lt/Rt Mlg
Part time
722 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

ANNUAL INSPECTION REVEALED SEVERE CORROSION INSIDE OF THE MLG TRUNNION TUBES (THE LANDING GEAR PIVOT TUBES EXTENDING FROM THE GEAR LEG FORWARD INTO THE LEADING EDGE). THE TUBES WERE REMOVED AND REPLACED WITH NEW TUBES. THE OLD TUBES WERE CUT IN TWO AND THE DEPTH OF THE CORROSION WAS DETERMINED TO BE .042 INCH, APPROXIMATELY ONE-THIRD OF THE WAY THROUGH THE .120 INCH WALL THICKNESS OF THE TUBE. THE AIRCRAFT HAD A LONG HISTORY OF SALT WATER OPERATION.