What was found
DURING 100 HR INSPECTION BORESCOPING ENG, FOUND NR 4 CYLINDER CRACKED FROM LOWER SPARK PLUG BOSS APPROX 1/2 INCH TOWARDS EXHAUST VLV SEAT.
- Difficulty date
- March 19, 2015
- Submitted
- March 25, 2015
- Operation
- Air carrier
- Aircraft
- N9935M
- Make and model
- Cessna 207A
- Aircraft serial
- 20700751
- Aircraft time
- 23,882 hours
- Engine
- Cont IO520F
- Engine time
- 4,930 hours
- Propeller
- Hartzl HCC3YF1
- System (JASC)
- 8530 · Reciprocating Engine Cylinder Section
- Part
- Cylinder Head
- Part number
- SA52006A20P
- Part serial
- 526E1311997
- Condition
- Cracked
- Location
- Engine
- Part time
- 1,386 hours
- Component
- Engine · Cont · IO520F
- Component part number
- IO520F
- Stage of operation
- IN
- How discovered
- B
- Nature of condition
- O
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.