As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING INSPECTION FOR ROUTINE MAINTENANCE, THE #2 ENGINE CORE COWLS DOORS WERE OPENED UP. UNDER THE UPPER DOOR FOR THE ENGINE, THE 14TH STAGE BLEED AIR LINE P/N 228-56336-103 (13866-101 REV B) S/N K97991 WAS FOUND TO BE RUPTURED. THE LINE IS DESTROYED AND THE INNER CORE COWL UPPER DOOR SUFFERED SIGNIFICANT DAMAGE TO THE INTERIOR, BUT EXTERIOR OF DOOR REMAINED INTACT.