Cessna L-19 Bird Dog — Wiring Diagram

This Service Bulletin (SB-001) issued by Stratus Tool Technologies addresses mandatory inspections and procedures for oil filter adapters installed on various aircraft, including the Cessna L-19 Bird Dog. The bulletin highlights the importance of inspecting for oil leaks and ensuring proper installation of the oil filter adapter to prevent engine oil loss, which could lead to partial or complete engine power loss. Compliance with the instructions outlined in this bulletin is required before further flight. The document provides detailed steps for inspection, maintenance, and installation of the oil filter adapter, emphasizing the need for new gaskets whenever the adapter is removed or adjusted.

• Mandatory inspections of oil filter adapters must be completed before further flight.
• Use new copper and fiber gaskets whenever the adapter is removed or adjusted.
• Inspect for leaks and gasket integrity at each oil change and during 100-hour or annual inspections.
• Torque the oil transfer cylinder to 65 ft-lbs and ensure the fiber gasket does not rotate during tightening.
• Document compliance with this service bulletin in the aircraft logbook.