Service difficulty report · Exhaust Valve · Cessna 402C

Difficulty date
October 29, 2016
Submitted
November 8, 2016
Operation
Air carrier
Aircraft
N300SN
Make and model
Cessna 402C
Aircraft serial
402C0060
Aircraft time
21,898 hours
Engine
Cont TSIO520VB
Part
Exhaust Valve
Part number
658552A1
Part serial
AC14JC064
Condition
Damaged
Location
Nr 4 Cylinder
Part time
1,684 hours
Stage of operation
IN
How discovered
9
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

CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION; EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.

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