What was found
(CAN) DURING CRUISE, AT APPROXIMATELY 7000 FEET AND THE RETARDANT SYSTEM DE-ARMED, THE RETARDANT TANK CONTENTS EXITED THE TANK. THE CREW RETURNED TO BASE. MAINTENANCE TROUBLESHOT THE SYSTEM AND THE HYDRAULIC MANIFOLD FOR THE RETARDANT TANK WAS REPLACED. THE TANK DOOR OVER CENTERS WERE CHECKED. THE RETARDANT TANK SYSTEM WAS FUNCTION CHECKED, THE AIRCRAFT WAS TEST FLOWN AND RETURNED TO SERVICE. (TC NR 20070817006)