Service difficulty report · Exhaust Valve · Cessna 402C

Difficulty date
July 10, 2017
Submitted
July 12, 2017
Operation
Air carrier
Aircraft
N256CA
Make and model
Cessna 402C
Aircraft serial
402C0606
Aircraft time
23,676 hours
Engine
Cont TSIO520VB
Part
Exhaust Valve
Condition
Broken
Location
Nr 4 Cylinder
Component
Cylinder · Cont
Component part number
658552A2
Stage of operation
CL
How discovered
O
Nature of condition
E
Precautionary procedure
A

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

What was found

PILOT REPORTED RIGHT ENGINE ROUGH AND VIBRATION IN FLIGHT. UPON INSPECTION MX DISCOVERED THE NR 4 EXHAUST VALVE TO BE BROKEN.

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