As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(AUS) DURING AN ENGINE GROUND RUN THE LH 'BLEED LEAK' LIGHT ILLUMINATED. A SYSTEM CHECK DETECTED LEAKAGE FROM THE FLEXIBLEDUCT AT THE WIND ROOT.FURTHER INVESTIGATION FOUND A STAINLESS STEEL INSERT HAD DISBONDED FROM THE SILICON FLEXIBLE DUCT.