[Aktungbby]

NOPE: I (OBLTz.S. Ernst Wilburg) lasted almost a year longer:

Sunk on 10 February 1944 in the North Atlantic west of Ireland, in position 53.56N, 17.16W, by depth charges from a Swordfish aircraft (842 Sqn FAA/A) of the British escort carrier HMS Fencer. 51 dead (all hands lost)

U-384 participated in Wolfpacks Falke (28 Dec 1942 - 19 Jan 1943)
Landsknecht (19 Jan 1943 - 26 Jan 1943)
Stürmer (11 Mar 1943 - 19 Mar 1943) 2 ships sunk, total tonnage 13,407 GRT. U-666 participated in Wolfpacks Ostmark (6 Mar 1943 - 11 Mar 1943)

Seewolf (21 Mar 1943 - 30 Mar 1943)
Oder (17 May 1943 - 19 May 1943)
Mosel (19 May 1943 - 24 May 1943)
Trutz (1 Jun 1943 - 16 Jun 1943)
Trutz 2 (16 Jun 1943 - 29 Jun 1943)
Leuthen (15 Sep 1943 - 24 Sep 1943)
Rossbach (24 Sep 1943 - 6 Oct 1943)
Hela (28 Dec 1943 - 1 Jan 1944)
Rügen 6 (5 Jan 1944 - 7 Jan 1944)
Rügen (7 Jan 1944 - 26 Jan 1944)
Stürmer (26 Jan 1944 - 3 Feb 1944)
Igel 1 (3 Feb 1944 - 10 Feb 1944) One warship sunk one cargo vessel damaged. BOTH U-666 and U 384 participated in wolfpck Stürmer and so crossed paths...Briefly! For the amount of Marks spent on 2 Boats, training and 98 men lost, a poor return on investment. Wolfpack Stürmer, consisting of 19 boats, accounted for 10 ships sunk (60,364 tons) and 3 ships damaged (18,216 tons). U-384 sank one and U-666 damaged one. On 19 March 1943, after damaging the Greek freighter Carras, a B-17 Flying Fortress bomber from No. 220 Squadron RAF hit the boat with four depth charges, causing sufficient damage as to force her to return to France. Only U 384 was lost; oddly in the same general area as U-666, later, west of Ireland; both to air attacks..

Sunk at 1745hrs on 19 March 1943 in the North Atlantic west of Ireland, in position 54.18N, 26.15W, by depth charges from a British Fortress aircraft (206 Sqn RAF/B). 47 dead (all hands lost).