In August 1958, USS Queenfish (SS-393) was back in San Diego after her WestPac deployment and quickly moved into a maintenance phase. The deck log shows that beginning on August 21 she entered an availability period, and over the following days the crew oversaw the offloading of her torpedoes. This was standard practice before any yard period, both for safety reasons and to allow overhaul work in the torpedo rooms. The log notes entries where torpedoes were struck below, removed, and transferred off the submarine, marking the transition from an operational posture to one focused on repair and upkeep .