Emergency exit routes of the TBM Avenger for both ditching and bailout in flight. The turret exit could not be used by the gunner to bail out during flight, because the gunner did not wear his parachute in flight. The gunner’s parachute was stored above the door in the bombardier’s compartment.
Source: Pilot’s Handbook of Flight Operating Instructions, Navy Model TBM-3 Airplane, November 1945.