eek] 10.2 SYSTEM SON ITORDM AND RESTLTS 10.2.1 Preflight Safety Checks and Final Sarbead Araicg Sandia was given the responsibility of performing final arming of the warbead prior t> missile Launch. This work was initiated at H minus & ainutes, after assurance from the ASMA firing coordinator that radio-frequency silesce was in effect on the missile and ia the area east of the Jobnston Island aircraft-coctro] tower. The first operation performed was a woltage-safety, check of the fuzingsystem output lines. This step was incorporated to assure that no voltage was being supplied ou any of tbe lines to the warhead. A special test device con- nected a multimter through a selector switch to the fuze-output connector. Each wire in the output circuit was monitored individually by means of the selector switch. The multimeter was set on the 2.5-volt range aod the meter switched to the AC and DC mode ror each circuit. No voltage was detected on any of the input lines. The secood step was a warhead~contimity test performed with the T-304 wultiple-purpose test set. This test confirmed that the high-voltage thermal battery had not been activated and that certain critical interosl warhead connections were couplete. Following these steps, permission was requested and received from the Commander, Task Group 7.1, to arm the warhead. The cables between the warhead and the fuze were connected, and continuiry checks of the warhead and fuze were perforaed by means of che Picatinny prelaunch contro! and monitoring panel in the firing bunker. All connectors on the warbead~fuze cables were than safety-wired, and the diagnostic telemetering system was connected to the vartead. The last step to be performed was insertion of the high-voltage jumper cable which was also safery-wired. Following this operation each meaber of the arming party perforzed a visual check of the installation, after which the nissile-access doors were closed and sealed. The fical step was a report to the Task Croup Comeander by the Project Oiificer thac arzing was complete and a statement to the ASMA firing coordinaror that radio-frequency silence could be liited. 330 ae