Service difficulty report · Cylinder Head · Piper PA31350

Difficulty date
May 16, 2012
Submitted
September 14, 2015
Operation
General aviation
Make and model
Piper PA31350
Aircraft time
5,329 hours
Engine
Lyc TIO540J2BD
Propeller
Hartzl HCE3YR2A
Part
Cylinder Head
Condition
Cracked
Location
Engine
Part time
1,821 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) FOUND CYLINDER HEAD CRACK UNDER INTAKE PUSH ROD AREA. I DID CHECK WITH O/H SHOP. THEY SUPPORT THE THEORY OF "SHOT/QUICK COOLING". THE CYLINDER WAS AT THE POSITION NR 1, THE MOST EXPOSE TO COOL EXTERNAL AIR.

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