As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) HP DUCTS HAVE BEEN INSPECTED FOR THE FIRST TIME (10 000 FH) BY AIR NOSTRUM IN OCTOBER AND ROUGHLY 80% OF THE DUCTS ARE FAILING THE AMM CHECK BECAUSE OF EXCESSIVE LEAKAGE OF THE EXTERNAL SHROUD. SSP EVALUATION CONFIRMED THAT THE DUCTS ARE LEAKING EXCESSIVELY HENCE THIS FAILURE CAN JEOPARDIZE BLEED LEAK DETECTION.