Service difficulty report · Cylinder Head · Piper PA31350

Difficulty date
July 7, 2017
Submitted
July 12, 2017
Operation
Air carrier
Aircraft
N765KP
Make and model
Piper PA31350
Aircraft serial
318253012
Aircraft time
11,659 hours
Engine
Lyc TIO540J2B
Engine time
1,765 hours
Part
Cylinder Head
Part number
05K21108
Condition
Cracked
Location
Nr 5 Cylinder
Part time
923 hours
Stage of operation
IN
How discovered
V
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

NR 5 CYLINDER HAD BLUE FUEL STAIN BLOWING ONTO COWLING. CYLINDER WAS REMOVED AND REPLACED WITH NEW DUE TO SUSPECTED HEAD CRACK. CYLINDER WAS SENT OUT FOR NDT WHICH VERIFIED A CRACKED CYLINDER HEAD.

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