As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON C-CHECK, RIGHT PRIMARY H/E U-DUCT HAS CRACKED FLANGE. REMOVED RT PRIMARY H/E DUCT FOR SEND OUT TO REPAIR PER B-727 IAW MM 21-55-11. INSTALLED RT PRIMARY H/E DUCT PER B-727 IAW MM 21-55-11. LEAK CHECK RT PRIMARY H/E DUCT GOOD B-727 IAW 21-55-11. OPS CHECK RT PRIMARY H/E DUCT B-727 IAW MM 21-55-11.