Service difficulty report · Spark Plug · Cirrus SR22

Difficulty date
August 15, 2012
Submitted
August 29, 2012
Operation
General aviation
Aircraft
N262JD
Make and model
Cirrus SR22
Engine
Cont IO550N
Part
Spark Plug
Part number
RHB32S
Part serial
DD0393
Condition
Destroyed
Location
Zone 400
Part time
400 hours
Stage of operation
CR
How discovered
O
Nature of condition
E, R
Precautionary procedure
B, E, A

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

What was found

ENGINE ROUGH IN CLIMB TO FL140. COULD NOT SET 17,5 GPH FOR CRUISE, HAD THAT SAME PROBLEM ONCE MORE, BUT NOW ONLY VERY LEAN. CHT IN SECONDS TO 480 FROM 340 AND ABOVE ON CYLINDER NR 1. NORMAL EGT , HIGH AND RISING TIT ON TURBO 2 FROM 1600 TO 1750. WHEN THE OIL PRESSURE DROPPED, DIVERTED. INSPECTION REVEALED NO DIFFERENTIAL PRESSURE ON CYLINDER NR 2, OIL FILTER FULL OF METAL AND WASTEGATE CONTROLLER PARTS MISSING. SPARK PLUGS HAD CRACKED INSULATORS AND PREIGNITION ON CYLINDER. METAL CONTAMINATION THROUGHOUT. ANNUAL 30 HOURS AGO.

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