Squawk Box

July 2019 Issue

Mufflers

The following information is derived from the FAAís Service Difficulty Reports and Aviation Maintenance Alerts.

While carrying out Canadian AD CF90-03-R2, large leaks were found in the area surrounding the muffler tail pipe area under the structure for supporting the heat muff shroud. No defects were noticed in a visual inspection of this area. No data tag was on the muffler, so itís assumed it is an original unit. The operatorís logs donít show it ever being changed.

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