As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND DURING D-CHECK, GROUND PNEUMATIC CONNECTION HAS LEAK IN DUCT UPSTREAM OF COUPLING. STOP DRILLED CRACK. NDT CONFIRMED CRACK HAD BEEN STOPPED. WELDED CRACK IAW MIL-STD-2219. NDT WELD NO FLAWS FOUND PER EO NR 99-186 WITH APPROVED 8110-3 DATED 10/06/99. (M)