Is it permissible to land with a FUEL IMBALANCE EICAS message?

Landing with a FUEL IMBALANCE EICAS message is permissible if the fuel imbalance does not exceed 794 lbs. This is derived from operational guidelines and safety protocols that allow for a defined limit to ensure the aircraft can safely land without adverse effects caused by an uneven distribution of fuel. The specified limit of 794 lbs is established based on the aircraft's design and operational capabilities, which take into account factors like weight distribution and performance during landing.

Maintaining an imbalance within this limit aids in preserving flight characteristics and ensures that the risk of asymmetric thrust is kept at an acceptable level during landing. Exceeding this limit could lead to handling difficulties and risks associated with the aircraft’s aerodynamic performance, hence strict adherence to this guideline is crucial for safe operations.