This was a radar incendiary mission involving 25 planes from the 6th Bomb Group:
June 15 found the Sixth returning to the incendiary missions with an attack on Amagasaki, just west of Osaka. Weather again played havoc with the formation and made visual bombing impossible, but fortunately eliminated most of the Jap opposition. Damage was small with only 0.76 sq mi of the urban area destroyed.
[Pirate’s Log, p. 47]
20th AF Mission 192