NSMITTER UNIT P/N 7021450-801 (ISO C63c). INSTALLED A HONEYWELL LSZ-860 LIGHTNING SENSOR SYSTEM CONSISTING OF AN 1.11-860 PROCESSOR P/N 7011822-904 (ISO C110) AND AN AT-855 ANTENNA P/N 7014062-901 (ISO CI10). THE LIGHTNING SENSOR SYSTEM INTERFACES WITH THE PRIMUS 880 RADAR SYSTEM THRU THE If 1 & 2 WC-880