Service difficulty report · Cylinder · Cessna T310R

Difficulty date
November 28, 2012
Submitted
September 14, 2015
Operation
General aviation
Make and model
Cessna T310R
Engine
Cont TSIO520NB
Propeller
Hartzl PHCC3YF2
Part
Cylinder
Part number
AEC631397
Condition
Cracked
Location
Intake Port
Part time
818 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

(CAN) SNAG FROM CUSTOMER WAS GREASE MARKS COMING FROM RIDE SIDE COWLING. WHEN COWLING WAS REMOVED, FOUND FUEL ON INTAKE BOLTS OF NR 5 CYLINDER. WITH A LIGHT, LOOKED DOWN THE FINS TO SEE BLUE STREAKS COMING FROM CYLINDER NEAR UPPER PART OF INTAKE PORT. FURTHER INSPECTION SHOWS CRACK IN INTAKE PORT AREA. FURTHER INSPECTION OF BOTH ENGINES SHOWED 7 OF 12 CYLINDERS SHOWING SIGNS OF CRACKS IN SAME AREA. ALL THE CYLINDERS ARE STAMPED "EA" ON UPPER ROCKER COVER FLANGE. REST OF THE CRACKED CYLINDER`S SN ARE AS FOLLOWS: 38039-21, 38203-03, 36226-14, 37972-12, 37535-30, 38075-10.

More about the Cessna T310R