What was found
WHILE HOVERING OUT FOR TAKEOFF, NOTICED HYDRAULIC FLUID ON THE HELIPAD. RETURNED TO PAD TO INVESTIGATE AND SHUTDOWN HELICOPTER AND THEN CONTACTED MAINTENANCE. MAINTENANCE FOUND LANDING GEAR VALVE BUTTON POPPED. RESET THE BUTTON AND COMPLIED WITH LANDING GEAR OPERATIONAL CHECK AND LEAK CHECK. THE OPS CHECK WAS GOOD AND NO LEAKS COULD BE FOUND. WORK WAS DONE IAW MM. (K)