What was found
RED CAS STAB OVERHEAT, BURNING SMELL IN CABIN. CREW ADVISED THE RED (STAB OVHT) CAS MESSAGE ILLUMINATED WITH CWP AND TRIPLE CHIME DURING CLIMB THROUGH FL 30.0. THE THRUST LEVERS WERE JUST BELOW MCR, 82% N1 AND -29 TEMP. CREW SELECTED ANTIICE *OFF* AND PULLED POWER BACK. THE CAS MESSAGE EXTINGUISHED. CREW SELECTED ANTI-ICE BACK *ON* 2 MINUTES LATER AND CAS MESSAGE DID NOT RETURN. PER FSR RECOMMENDATIONS AND T/S, REPLACED THE P-40 RELAY PANEL. OPS CHECKS PERFORMED, NO DEFECTS NOTED.