As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING SCHEDULED MAINTENANCE, FOUND BRAIDING AROUND FLEXIBLE BELLOWS DISBONDED FROM ENTIRE CIRCUMFERENCE. NEW REPLACEMENT DUCT ASSEMBLIES NOT AVAILABLE FROM MANUFACTURER. REPLACED WITH SERVICEABLE UNIT. INSPECTED REPLACEMENT UNIT PER AD 2001-03-06 EFF. 3-21-2001