ECI (cylinder): IO520 series: Cracked Cylinder; ATA 8530

ECI (cylinder): IO520 series: Cracked Cylinder; ATA 8530

The submitter for this air taxi operation writes, “I found this cylinder head cracked in the exhaust side of the head during a 50 hour inspection. This (propensity for cylinders to crack) is an ongoing problem with ECI cylinders.”

(P/N given is ECI 71.2A. This engine is operated on a Beech A36. Five additional defect reports from the same operator all describe almost identical crack discrepancies with this ECI 71.2A part number cylinder. A Beech F-33A, 36, and 58 are the other reported host aircraft. Of the six individual cylinder time submissions, 501.0 hours was their average, with a low time of 471.9 hours and 1,147.3 hours for the high mark. Eight additional cylinders answering to this part number are found in the SDRS data base.)

Part Total Time: 471.9 hours.

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