When should fuel servicing information be entered in red on the AFTO form?

Fuel servicing information should be entered in red on the AFTO form when there are discrepancies or issues that require immediate attention, such as contamination or improper servicing procedures. This practice helps to highlight critical information that may impact the safety and performance of the aircraft. Additionally, any significant deviations from standard operating procedures should also be documented in red to ensure they are easily identifiable for maintenance personnel.