What was found
PILOT REPORTED HIGH MAGNETO DROP DURING PRE-RUN CHECK. NR 3 CYLINDER BOTTOM SPARK PLUG WAS FOUND TO HAVE ENTIRE CERAMIC MISSING. BORESCOPE OF CYLINDER REVEALED NO INTERNAL DAMAGE.
- Difficulty date
- December 16, 2011
- Submitted
- December 16, 2011
- Operation
- General aviation
- Aircraft
- N225KW
- Make and model
- Columb LC40550FG300
- Aircraft serial
- 41671
- Aircraft time
- 473 hours
- Engine
- Cont TSIO550C
- Engine time
- 473 hours
- System (JASC)
- 7421 · Spark Plug/Igniter
- Part
- Spark Plug
- Part number
- RHB32S
- Condition
- Defective
- Location
- Cylinder
- Part time
- 473 hours
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.