As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF AND ENGINE IN CLIMB POWER TURNED NR 2 PNEUMATIC SUPPLY SWITCH TO AUTO NR MANIFOLD LIGHT CAME ON. REMOVED DEFECTIVE PNEUMATIC DUCT (LT) BETWEEN FUSELAGE STATION 1239 AND STA 1361 IN ACCORDANCE WITH DC-10-30 MM 36-14-02. INSTALLED NEW PNEUMATIC DUCT (LT) IN ACCORDANCE WITH DC-10-30 MM 36-14-02. LEAK CHECK IS SATISFACTORY.