As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER ONE TRANSPONDER INOP WITH CORRESPONDING ''DIAG'' MESSAGE. NUMBER TWO TRANSPONDER INOP IN ALL POSITIONS WITH NUMBER ONE TRANSPONDER OFF OR ON. NO CORRESPONDING ''DIAG'' MESSAGE ON NUMBER TWO. RETURNED TO LAX. VERIFIED TRANSPONDER RECEIVER BAD USING T-49 TRANSPONDER TESTER. INSTALLED SERVICEABLE TDR-94 IAW 34-00-00. GROUND OPS CHECK GOOD.S/N ON: 2442 S/N OFF: 3080