Squawk Box

October 2011 Issue

Cracked, Contaminated

The following information is derived from the FAA’s Service Difficulty Reports and Aviation Maintenance Alerts.

Engine oil was observed dripping out of the port side wing root. The ¼-inch aluminum oil pressure line (p/n 5600107-11) was routed over the top of a section of three-inch SCAT tubing. The SCAT tubing’s wire chafed a hole in oil pressure line. This airplane’s starboard line also was routed the same way and was rerouted to prevent chafing.

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