Service difficulty report · Cylinder · Cessna 207

Difficulty date
March 14, 2015
Submitted
March 14, 2015
Operation
Air carrier
Aircraft
N916AC
Make and model
Cessna 207
Aircraft serial
20700061
Aircraft time
13,296 hours
Engine
Cont IO520F
Engine time
4,279 hours
Propeller
Hartzl PHCC3YF1
Part
Cylinder
Part number
IO520
Part serial
PMA526A141328
Condition
Cracked
Location
Nr 1
Part time
1,119 hours
Component
Engine · Cont · IO520F
Component part number
IO520F
Stage of operation
IN
How discovered
B
Nature of condition
O
Precautionary procedure
O

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

What was found

DURING 100HR INSPECTION BORESCOPING ENG, FOUND THE NR 1 CYLINDER CRACKED FROM LOWER SPARK PLUG BOSS APPROX 1/2 INCH TOWARDS EXHAUST VLV SEAT.

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