What was found
UPON APPLYING TAKEOFF POWER FOR DEPARTURE, AROUND 50KTS IAS THE RIGHT THEN LEFT THRUST REVERSER EMERGENCY STOW SWITCH LIGHTS STARTED FLASHING. THEY WORKED FINE ON PREVIOUS LEGS AND WERE NOT TESTED BETWEEN LEGS IAW NORMAL PROCEDURE. FOLLOWED MEL PROCEDURE AND REACTIVATED BOTH LH AND RH T/R'S. GAINED ACCESS INTO AIRCRAFT AND STARTED BOTH ENGINES. PERFORMED THE OPERATIONAL CHECK FOR BOTH LH AND RH T/R'S. PERFORMED A SATISFACTORY OPERATIONAL CHECK. ALL WORK DONE IAW AMM 78-30-00. NO DEFECTS NOTED.