Originally Posted by
GearDown&Locked
Simple question. How does fuel quality varies when we mix different kinds of fuel in the tanks?
From what I've learned here, normal Jet A1 has a different chemical composition from the fuel this crew used out of China. A chemical reaction between different additives could probably lead to quality degradation regarding its published freezing point.
From AAIB Special Bulletin:
"
The specified freezing point for Jet A-1 fuel is -47ºC; analysis of fuel samples taken after the accident showed the fuel onboard the aircraft had an actual freezing point of -57ºC."