CESSNA 421 TURBINE — Other Documents

This document is an Interagency Aviation Accident Prevention Bulletin focusing on the critical issue of aircraft fueling safety. It discusses a specific accident involving a Cessna 421C that resulted in a fatal crash due to misfueling with Jet A instead of the required 100LL aviation gasoline. The bulletin emphasizes the importance of communication between pilots and line service technicians during the fueling process to prevent such accidents. It also highlights the need for vigilance, especially in remote areas, and outlines precautions to distinguish between avgas and jet fuel. The document serves as a reminder for pilots to ensure the correct fuel type and quantity are loaded into their aircraft.

• Cessna 421C was involved in a fatal accident due to misfueling with Jet A instead of 100LL.
• Pilots should always be present during fueling to confirm fuel type and quantity.
• Fueling ports for avgas are limited to 60 mm in diameter to prevent misfueling.
• Jet fuel is clear to straw-colored and dispensed from larger nozzles to avoid fitting into avgas ports.
• Properly securing fuel caps is crucial after fueling.