3 Aug 1943
At 07.50 hours, the boat was attacked by British Catalina aircraft FP280 (190 Sqdn RAF/U, pilot F/L B. Crosland) southeast of Iceland. The Catalina observed hits in a strafing run to assist an unidentified Fortress, which dropped no depth charges and flew off. AA fire hit the Catalina twice, damaging the radio compartment and forced it to return to base 20 minutes after the attack. They jettisoned the depth charges and later found that the rudder cables were almost severed. Just as the Catalina flew off a Hudson Mk.III aircraft (269 Sqdn RAF, pilot F/S E.L.J. Brame) badly damaged U-489 with A/S bombs and forced her to dive by gunfire. (Sources: Franks/Zimmerman)

4 Aug 1943
The sinking of U-489 Aircraft attack, aircraft shot down:Canadian Sunderland DD859 (423 Sqdn RCAF/G, pilot F/O A.A. Bishop, RCAF)

The boat had been damaged the day before and was attacked by the Sunderland soon after 09.00 hours. The aircraft was hit by AA fire during the attack run, dropped its depth charges and crashed into the sea, killing 5 of the 11 crewmen. But also U-489 had been hit mortally and sank slowly shortly thereafter. HMS Castleton and HMS Orwell had observed the attack and picked up the survivors from the aircraft and the U-boat.

2 recorded attacks on this boat.