Location Item    Interval No. Item  to Crewmember Check/ Procedure Not Fully Mission Capable  If: Service CARRIER COMMANDER 16 During Controls Monitor all gages and warning and In- lights  during  operation. dicators 16.1 During Seatbelts Ensure all personnel are buckled in their seats. Personnel sitting in open hatch area must not ex- pose more than head and shoulders to name tag level, except when firing weapons. NOTE During  long  engine idling  periods,  the engine  coolant  tem- perature will fall below normal operating range. 16.2 During RPM gage Monitor  gage  during prolonged  engine  idle  and maintain  1000  rpm. 17 During Person- nel Heater DRIVER NOTE Item  checked  only  if heater is to be used dur- ing operation. TM  9-2350-261-10 Table 2-1. Preventive Maintenance Checks and Services for Model M113A2 FOV Warning light or any gage  indicates  a  sys- tern  problem. Personnel  sitting  in open  hatch  area  must not expose more than head and shoulders to  name  tag  level, except  when  firing weapons. 2-56  Change 5