Service difficulty report · Cylinder · Beech A36

Difficulty date
June 9, 2003
Submitted
June 9, 2003
Operation
General aviation
Aircraft
N7252T
Make and model
Beech A36
Aircraft serial
E2261
Engine
Cont IO550B
Part
Cylinder
Part number
AEC631397STA
Part serial
24702
Condition
Cracked
Location
Engine
Part time
79 hours
Stage of operation
NR
How discovered
O
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

6/1/02 SIX NEW ECI CYLINDER ASSY AEC631397STA INSTALLED. 11/15/02 NR 4 CYL CRACKED AFTER 171 HOURS OF SERVICE AND DAMAGED NR 2 CYL, BOTH OF WHICH WERE REPLACED. 2/20/03 NR 2 CYL CRACKED AFTER 79 HOURS OF SERVICE. 4/4/03 NR 4 CYL CRACKED AFTER 99 HOURS OF SERVICE. 6/5/03 FOUND NR 2 PISTON RING LAND AREA CRACKED AND DAMAGED SKIRT, CLOSER EXAMINATION REVEALED THE PISTON HAD NOT RECEIVED SOME MACHINING OPERATIONS AND THE SKIRT HAD CONTACTED THE CONNECTING ROD OF AN ADJACENT CYLINDER.

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