Figure 15. DA Form 2404.
OP CHECK FOR INTERCOMMUNICATION SET AN/VIC-1 WITHOUT RADIO.
a. Refer to GTA 11-3-49, December 1986. This graphic training aid (GTA) is a systems check
which provides a step-by-step procedure for evaluating the performance of intercommunication set
AN/VIC-1 (without radio). It specifies the procedure to be used to evaluate the operational state of the
intercom set components and/or items of equipment within the system.
b. This op check is divided into two sections. Section I lists specific preparatory actions that
establish a starting condition. Section II is the equipment performance checklist (EPC). The EPC steps
are specifically arranged and must be done in the order presented. Each step checks a specific function.
It tells you the action you must take to check that function and the normal