Air Canada E190 at Regina on Aug 16th 2014, noise near emergency exit

An Air Canada Embraer ERJ-190, registration C-FHON performing flight AC-1112 from Regina,SK to Toronto,ON (Canada) with 85 passengers and 5 crew, was in the initial climb out of Regina when an unusual noise was observed from an area near the left hand over wing emergency exit. The crew decided to return to Regina reporting a pressurization issue and landed safely back in Regina.

The Canadian TSB reported the left hand air conditioning duct was found leaking.