Service difficulty report · Lifter · Beech 60

Difficulty date
November 6, 2001
Submitted
December 12, 2001
Operation
General aviation
Aircraft
N33LB
Make and model
Beech 60
Aircraft serial
P74
Engine
Lyc TIO541E1C4
Part
Lifter
Part number
77672
Condition
Spalled
Location
Engine
Part time
132 hours
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

UPON REMOVAL OF PUSH RODS AND PUSH ROD TUBES FOR RESEAL. THE LIFTERS WERE REMOVED FOR BLEEDING. THE LIFTERS WERE INSPECTED AND WERE FOUND TO HAVE SEVERE SPALLING. MFG WAS NOTIFIED AND ENGINES ARE TO BE REMOVED AND SENT BACK FOR REPAIR. ENGINES HAVE 132.4 HOURS TT. CAMSHAFT IS ALSO WORN.

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