I was reading the book, "Island of the Damned" that includes Marine R. V. Burgin's recollection of a dogfight he observed between a Grasshopper (L-4 or L-5) versus a "Zero" on New Britain.
There is no exact date, only that it is probably middle or late March 1944. Incident happened while the Marines were on patrol from Bitokara toward Numundo Plantation on a three day patrol
Island of the Damned, page 88
"We had those little spotter planes - we called them grasshoppers - to help us off and on. One afternoon, I saw a Japanese Zero get after one of those plane. The grasshopper was flying along the edge of the ocean about fifty miles an hour or so. When the Zero showed up, the spotter plane dipped down to tree top level and started weaving back and forth. The Zero must have been going more than a hundred and he couldn't adjust. He made a pass at that little plane moving in slow motion and overshot his his target and went flying by. Then he came around and made another pass - he missed again. As we watched he made pass after pass firing at the grasshopper, which kept zigzagging frantically. Finally I guess the Zero ran out of ammunition and flew off. Never did hit him. We were cheering that little plane until he flew out of sight."
Numundo, New Britain
This might be an interesting combat to research, or try to confirm!
Or, a strange dogfight combination!