As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NO COMM DISPLAYED ON ACARS DISPLAY UNIT OVER OCEAN, ACARS SENDS OK IN VHF RANGE. ACCOMPLISH CHRONIC REVIEW. PLACARD SATCOM DUE TO HISTORY PER 2325A, C-B'S COLLARED. REMOVED AND REPLACED SAT DATA UNIT IAW AMM. OPS CHECK GOOD REF 23-25-00. SEE 8262003 FOR PARTS INFO