What was found
CYLINDER BOTTLE LEAKING DOWN PRESSURE. SQUIB VALVE ON CYLINDER WAS CHECKED FOR LEAKS, LEAK WAS DISCOVERED AT SQUIB VALVE TO MANIFOLD JUNCTION. ACTION TAKEN: REMOVED SQUIB VALVE MANIFOLD ASSY FROM CYLINDER. REMOVED AND REPLACED O RING AND LEATHER BACK UP RING SEALING THE MANIFOLD TO THE SQUIB VALVE. RE-INSTALLED SQUIB VALVE ASSY TO THE CYLINDER AND RE PRESURIZED CYLINDER WITH NITROGEN. NO LEAKS DETECTED. CYLINDER RE INSTALLED ONTO FLOAT.