Service difficulty report · Boss

Difficulty date
August 14, 2009
Submitted
August 14, 2009
Operation
General aviation
Engine
Cont IO550B
Part
Boss
Condition
Mismanufactured
Location
Push Rod Housing
Component
Cylinder
Component part number
655484A5
Stage of operation
IN
How discovered
V
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

WHILE PERFORMING INCOMING INSP OF A NEW MFG CYLINDER. THE CYLINDER PUSH ROD HSG BOSS WAS FOUND TO HAVE NOT BEEN MACHINED FOR THE PUSH ROD HAS SEAL DURING THE MFG OF THE CYLINDER. (K)