Service difficulty report · Wastegate Valve · Cessna 421C

Difficulty date
July 29, 2013
Submitted
September 9, 2013
Operation
General aviation
Aircraft
N421TG
Make and model
Cessna 421C
Aircraft serial
421C0839
Aircraft time
4,623 hours
Engine
Cont GTSIO520L
Engine time
878 hours
Propeller
Mcauly 3FF32C501
Part
Wastegate Valve
Part number
4810649001
Part serial
AC027879
Condition
Separated
Location
Zone 500
Part time
33 hours, 6 cycles
Stage of operation
CR
How discovered
O
Nature of condition
K, J
Precautionary procedure
E, B, A, H

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

What was found

THREADS IN WASTEGATE ACTUATOR FAILED AT OIL FEED LINE, FITTING SEPARATED FORM ACTUATOR RELEASING ALL OIL FROM LT ENGINE DURING FLIGHT.

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