What was found
WEATHER RADAR SYS R WXR FUNCTIONS WITHIN THE RIGHT SIDE COMPONENTS ARE FAILED OR PAR TIALLY FAILED. FIM TASK REF : 34-40-F2-C1A-421A-A. RIGHT INTEG SURVEILLANC E SYSTEM PROC UNIT ACCOMPLISHED HARD RESTART OF POWER ON ACFT. TESTED RT & LT WXR IAW FIM 34-40-F2-C1A-421A-A. RT WXR PASSED GROUND TESTED. POSSIBLE INT FAULT. LT WXR FAILED. RECOM REP OF LT WXR RF MODULE, M3442104. IAW AMM 34-42-02. R & R LT WX RADAR TRANSCEIVER, OPS CHECK GOOD IAW DMC-B787-A-34-42-02-00A-520A-A. R & R RT WEATHER RADAR TRANSCEIVER, OPS CHECK GOOD IAW DMC-B787-A-34-42-02-00A-520A-A.