PGM-2 reported bad leak and was ordered by Senior Officer Present Afloat to return to port accompanied by U.S.S.

On 6 April, PGM-7 departed Rendova in company of PGM-5 headed for the Motor Torpedo Boat Base #9, Treasury Islands, arriving there on the same day.

Two days after arriving at MTB Base #9, PGM-7 departed at 1743 hours on 8 April for its first patrol of the coastal waters of southwest Bougainville Island.

Starting at the end of June 1944, the PGM-7 participated in a prolonged patrol along the northwestern coast of New Ireland (island), in view, at a distance, of night attacks on the Japanese base at Rabaul on New Britain.

In the early morning hours of 18 July, PGM-7 departed MTB Base #9 for another patrol of New Ireland in company of PGM's 4, 5 and 8.

Heavy seas contributed to difficulties in maintaining proper patrol formation and PGM-4 lost track of PGM-7 on radar.

Collision piped by watch topside, General alarm dead, all hands given word to put on life jackets, PGM 4 drifted out of hole alongside port side, bow facing PGM 7’s stern, Captain went aboard PGM 4, directed all hands to abandon ship, 19 men abandon ship before ships drifted apart, Executive and Third Officer and 8 men aboard PGM 7, Executive Officer passes word to men still aboard to jettison all ammunition on starboard side of forward magazine, engine room flooded 30 inches above deck, control room had 6 inches above deck, after crew’s quarters reported by Savage, J.J., PhM1c, water up to deck boards, permission granted by Executive Officer to jettison 40mm ammunition in after magazine, Captain returned aboard in rubber life raft with Reuter, J.E, BM1c and proceeded to unload after magazine, when magazine emptied with exception of port side of forward magazine, in order to counter-balance starboard list, 2 barbettes were jettisoned, during this time the water had risen above the deck in the after crew’s quarters and attempts were made to pump out the water with a gasoline handy-billy, it failed to start and soon after Lt. (jg) Lindblooom and two MoMMs came aboard from the PGM 5 in a rubber life raft and attempted to start handy-billy, it failed and the PGM 5 sent over their handy-billy which also failed, later these pumps were operated successfully" "0745 PGM 8 attempted to tow the PGM 7 with the anchor chain but the attempt failed after five minutes when the chain parted" "0830 PGM 8 attempted to tow the PGM 7 with the six inch hawser approximately 200 feet in length, this also failed several minutes later when the tow line parted due to the short length of the line used" “ 0945 PGM 8 again attempts to tow with their own anchor chain, this attempt also failed about 45 minutes when chain parted" "1000 the gasoline handy-billy began to work and the after compartment and the tank compartment were continually pumped thereafter" "1240 U.S.S.

“19 July “ "0000-0400 moored as before alongside Dry Dock Pier at Sterling Harbor, Treasury Islands, being patched temporarily" “26 July “ "Moored as before" "0715 getting underway, secured alongside PGM 4, proceeding in harbor, en route for Purvis Bay “ "0755 through nets “ "0800 PGM 4 left alongside, now taking tow, speed 5 knots" "0800-1200 being towed by PGM 4 en route to Purvis Bay, speed 5 knots, using 1200 feet ¾ inch cable, temporarily patched on deck and port side, 2 gasoline pumps on board for purpose of pumping bilges, 8 men and 2 officers aboard" “28 July” "1130 Carter City [Florida Islands], now secured to Sub-Buoy in harbor, PGM 4 left for water" “31 August 1944” [last page of log] "0000-0400 moored as before at Carter City, Small Craft Repair Base, Florida Island area, in dry dock, using portable gasoline generator for ships power, crew living on base, officers living aboard, awaiting further orders from Bureau" The final fate of PGM-7 is not indicated in the ship's log.

The PGM-7 Report of Changes for the month ending 31 July 1944, lists 19 crew members transferred to MTBRons, Base 9, Navy 811, Treasury Islands, for temporary duty.