What distinguishes a T.O. with the designation "TO 1-E-3A-1-1" from others?

The designation "TO 1-E-3A-1-1" is structured to provide specific information about the technical order (T.O.) it represents, particularly focusing on the aircraft model. The "E-3A" in the designation signifies that this T.O. pertains to the E-3A aircraft model, which is a specific variant of the Boeing 707 used primarily for airborne warning and control system (AWACS) missions.

This specificity in aircraft model designation helps aircrew and maintenance personnel identify the correct technical order that pertains to the E-3A, ensuring that they refer to the right procedures, maintenance information, and operational guidelines associated with that model. It is essential for ensuring proper maintenance and operational use of the aircraft, as each model may have distinct requirements or specifications that differ from other models.