Northrop Grumman Systems Corp  San Diego  California  has been awarded a $240 653 315 primarily firm-fixed-price modification (PZ0001) for FA8620-13-C-3018 for three Block 30M RQ-4B Global Hawk air vehicles  each containing an Enhanced Integrated Sensor Suite and an Airborne Signals Intelligence Payload (ASIP)  plus two additional ASIP sensors as retrofit kits