As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT 1 30 HRS INTO FLIGHT, RECEIVER LEVEL 1 TRANSPONDER 1 FAIL. SWITCHED TO TRANS 2 AND RECEIVED TRNSP 2 FAIL. BOTH TRANSPS INTERMITTENTLY FAILED REMAINING FLIGHT. TRANSPORTER 1 REPLACED SYSTEM 1 AND 2 FIM TASK 34-54-00-1, TEST OK. NO FAULTS REV NOV 1/2010. REPLACED AS PER AMM REMOVAL/ INSTALLATION TASK 34-54-01-000-811 REV 91.6, TEST PASSED. OK FOR SERVICE P/N 7517800-10400 S/N OUT 99082485 S/N INXSE09117.