Squawk Box

February 2013 Issue

Jammed, Cracked, Loose

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

Left and right elevators were disassembled for repair. When the inboard flange was removed, exfoliating corrosion was found on spar. Corrosion is located under flange attach to spar and is not visible until parts are disassembled. The submitter suggests the issue isn’t one of flight time but the calender.

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