I have found two incidents that could be further investigated on the Finnish side, both refering to aircraft-ship contacts in Ladoga Lake
On 10 September 1941, there is a claim of a Finnish "reconnaissance plane" by MO-205.
No exact info on location, identification etc. There is some report of a lone Finnish aircraft lost, damaged or in contact with Soviet boat on the lake for that day?
On 22 June 1944, during the Soviet landings at Tulokska, here the whole translated description:
June 22 at 15 h. 25 min. ships and vessels, concentrated in Novaya Ladoga, weighed anchor and headed to the place of disembarkation.
At 5 o'clock in the morning, four gunboats from a distance of 50-60 cables opened fire on the shore. 15 minutes before the landing, two regiments of bombers and one regiment of attack aircraft delivered the last bomb and assault strike against the enemy's antiamphibious defense. At 0547 hours, after our planes had bombed and departed, 17 enemy bombers appeared in the landing area. The ships temporarily stopped firing along the coast in order to repel the enemy's air attack with the full force of their fire. One landing barge was damaged by enemy bombs, one of the bombers was shot down.
There are Finnish data concerning this raid? (Type of aircrafts, claims, possible losses etc.). Not sure the identification of the damaged landing craft, but i am positive it can be identified in other Soviet/Russian literature.