Mufflers

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

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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 its assumed it is an original unit. The operators logs dont show it ever being changed.
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