Service difficulty report · Exhaust Valve · Cessna 402C

Difficulty date
August 29, 2016
Submitted
September 2, 2016
Operation
Air carrier
Aircraft
N375R
Make and model
Cessna 402C
Aircraft serial
402C0468
Aircraft time
26,231 hours
Engine
Cont TSIO520VB
Part
Exhaust Valve
Part number
658552A2
Part serial
AC15GB731
Condition
Damaged
Location
Nr 4 Cylinder
Part time
1,242 hours
Component
Engine · Cont · TSIO520VB
Component part number
TSIO520VB
Stage of operation
IN
How discovered
C
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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