As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF, RECEIVED A LEVEL 2 AIR MANF 1 FAIL ALERT. DUMPED 62000 LBS FUEL AND MFC FAULT REVIEW LAST LEG SHOWS IN FLIGHT FAULTED MFC PNEU 1 OUT AND ON GROUND FAULTED ALARM (PNEU 1 Z4 OVHT). INSPECT Z4 FOR AIR LEAK NOT FOUND. TROUBLESHOT FIM 36-23-06 R AND I MFC PER MM AND RTS ALL TEST PASSED. A/C OK FOR SERVICE.