In April 1950, Western media reported that the Russians shot down a plane over the Baltic Sea.
Source - https://aeroplan2010.mirtesen.ru/blog/43351005830/Baltiyskiy-intsident---pervyiy-vozdushnyiy-boy-%C2%ABholodnoy-voynyi%C2%BB
US Position: On April 8, you shot down a US naval aircraft, not a B-29, but a Privateer (PB4Y2 Privateer is a large four-engined aircraft designed for naval reconnaissance and patrolling).
What happened then is described in a number of sources. We will rely on the article of the now deceased D.I. n. A. Orlova "US aerial reconnaissance over the territory of the USSR in 1950-55." - this is not popular literature, but a publication in the authoritative scientific journal "New and Contemporary History" (No. 6, 2000). The author drew on materials published in the Russian press and his own archival finds. One of the main documents is a report to the unit commander, Colonel F. Shinkarenko, flight commander Senior Lieutenant Dokin. Dokin reported: at the signal of a border violation, two pairs of La-11 rocket launchers took off. The offender was met eight kilometers south of Liepaja. Together with a couple of senior lieutenant Gerasimov, Dokin tried to force the American to land. He began to turn towards the sea. “Then I gave a warning burst - 12 shells. The intruder began to fire at me. The wingman, Lieutenant Tezyaev, seeing this, gave a burst to the intruder, who went with a big descent and entered the clouds (...). Presumably the plane crashed 5-10 km from the coast. "
The crew could get into cold water. In April, the water is very cold.. The possibility of his salvation depended on many factors. Including the quality of wetsuits. Crews need to be provided with all rescue options and need to constantly look for new opportunities