CESSNA 170B — Service Bulletins

This Service Bulletin (SB-001 Rev C) issued by Stratus Tool Technologies addresses mandatory inspections and maintenance procedures for oil filter adapters used in various Continental aircraft engines, including the Cessna 170. The bulletin emphasizes the importance of proper installation and maintenance to prevent oil leaks that could lead to engine power loss. It outlines specific compliance instructions that must be completed within a defined timeframe, ensuring that aircraft owners and operators maintain their aircraft in accordance with the latest safety standards. The document serves as a critical reference for mechanics and pilots to ensure the integrity of the oil filter adapter system.

• Mandatory compliance within 10 flight hours, annual inspection, or 100-hour inspection.
• Inspect oil filter adapter for fiber gaskets and leaks.
• Use only specified gaskets for installation; fiber gaskets are prohibited.
• Tighten the spool to 65 ft-lbs of torque during installation.
• Document all inspections and maintenance in the logbook.