What was found
MULTIPLE RPDU 71 MODULES REQUIRE REPLACEMENT. U CARD FILE CABINET AND FOUND NO DEFECTS. RPDU MODULES 71M1, M3, DMC-B787-A-24-70-F4-AZA-421A-A, RPDU 71 M1 AND M8 GATEWAY M4 AND M8 REQUIRE REPLACEMENT DUE TO AIR TURNBACK. WE HAVE 3 CA MICROPROCESSORS SUSPECT, WILL R&R DUE TO AIR RETURN. RDS IN STOCK IN EWR. . INTERROGATED PRESENT LEGS FAULT, FOUND MAINT MESSAGES 21 ADDITIONALLY REVIEW BOEING FLEET AHM. RECORDED MX MSG 24-39601 OCCURRED MULTIPLE TIMES ASSOCIATED WITH 05, 30-30151, & 30-32409. MESSAGE NOT LATCHED. MULTIPLE FAULTS IN MULTIPLE ATAS. THIS FAULT INDICATES LOSS OF ND FOUND MESSAGES CLEARED DURING DESCENT. VISUALLY INSPECTED RPD COMMS OF RPDU 71 WITH COMMON DATA NETWORK. T/S PER FIM R&R RPDU71 M1 AND M8 IAW AMM DMC-B787-A-24-71-05-00A-720A-A. INSTALLED SOFTWARE, ALL OPS CKS PASS, NO DEFECTS NOTED AT THIS TIME. OK FOR SERVICE. ORIGINAL SUBMISSION DATE: 11/18/2024