As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AIRCRAFT REJECTED TAKE OFF AT 80 KTS DUE A LOUD NOISE IN COCKPIT. FOUND THE #2 ZONE TRIP MANIFOLD DUCT HOSE COUPLING SPLIT. THE COUPLING WAS REPAIRED AS PER MAINTENANCE MANUAL AND SUBSEQUENTELY THE HOSE COUPLING WAS REPLACED AT THE NIGHT LAYOVER.