As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH WINDOW HEAT CAUTION MSG CYCLED SWITCH MSG CLEARED ,BUT SPARKS CAME FROM TERMINAL AND WINDOW BEGAN SHATTERING. REMOVED AND REPLACED LH FLIGHT COMPARTMENT SIDE WINDOW IAW CRJ-700 AMM 56-12-01-000/400-801-A01-PSA. OPS TEST AND LEAK CK GOOD.