As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RT BLEED DUCT LEAK EICAS MESSAGE ON PREFLIGHT WITH RIGHT PACK ON. RERACKED AIR SUPPLY CONTROL CARD M691 IAW AMM 36-11-12, NO FAULT OR MSG. FOUND LEAK AT ISO BYPASS CHECK VLV UPPER CLAMP AREA. TIGHTEN CLAMP AND LEAK CKD GOOD IAW AMM 36-11-05.