Brake Master Cylinders

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

Beech C90GT King Air 90 Manufacturing Defect After a new master cylinder was installed, attempts to bleed the system failed. Instead, it pulled fluid from the reservoir and returned it through the same line—internal bypass not functioning properly. Disassembled and found bypass valve stuck. Parts were unable to slide smoothly on shaft; metal shavings were […]
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