PREVENTIVE MAINTENANCE CHECKS AND SERVICES Continued
ITEM TO BE
NBC Air Filter
a. Check for NBC system air flow.
b. Remove air hose from orifice connector
assembly at each crew member station.
c. Check for steady flow of air at each hose outlet.
d. Check NBC heater indicator light.
e. Turn heater control knob at each crew member
station to the right. Check that indicator light at
each member station comes on.
f. Check for heated air.