TM 1-1520-238-T-7
10–190
10–67. NITROGEN INERTING SYSTEM – MAINTENANCE OPERATIONAL CHECK (cont)
10–67
NITROGEN INERT MONITOR PANEL
AFT AVIONICS BAY
INDICATOR
PRESS TO TEST
SWITCH
MAIN TRANSMISSION BAY
(RIGHT SIDE) (THRU R200)
UTILITY RECEPTACLE
CIRCUIT BREAKER BOX
M70-068A
Figure 10–71.
NIU Location
1. In aft avionics bay, manually reset NITROGEN INERT MONITOR indicator (fig. 10–71) to all black (OK).
2. With pressurized air and electrical power applied to the helicopter, complete the maintenance operational
check as follows:
