Service difficulty report · Cylinder · Smith STC600

Difficulty date
November 18, 2005
Submitted
January 23, 2006
Operation
General aviation
Aircraft
N7411S
Make and model
Smith STC600
Aircraft serial
600016
Engine
Lyc TIO540*
Part
Cylinder
Part number
40005401
Condition
Mismanufactured
Location
Engine
Part time
3,968 hours
Stage of operation
NR
How discovered
9
Nature of condition
W
Precautionary procedure
O

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

What was found

COLLAR SEPARATING FROM TUBE DUE TO INSUFFICIENT PENETRATION WHEN PART WAS FURNACE BAZED OR SILVER SOLDERED TOGETHER-WORKING COLLAR CAUSED PART TO WORK AND CRACK BOSS. RECOMMEND INSPECTION OF COLLAR AT BOTTOM OF GEAR STRUT FOR ANY MOVEMENT OR WORKING BETWEEN COLLAR AND THE STRUT CYLINDER ASSY- DYE CHECK COLLAR WHERE PART IS MACHINED FOR CLEARANCE ON TORQUE LINKS. (K)