You may find some information in the following report:
Analysis of Ditching and Water Survival Training Programs of Major Airframe Manufacturers and Airlines
Abstract: Current transport category aircrew training programs related to ditching and water survival are reviewed for content and attention to detail. This activity resulted from industry and regulatory inquiries about the state-of-the-art in ditching and water survival operations, especially with regard to the increasing number of aircraft operations, and associated opportunities for emergency water landing events, that the future will bring. The information on water landing events was gathered from published reports related to these issues. For example, Johnson (1984) cited 16 transport category water landings that occurred during the period from 1959 to 1979, and Chen and Muller (1994) reported that 33 water-impact accidents occurred in commuter-category aircraft from 1982 until 1989. An additional 21 water-related accidents or near accidents occurred in transport category aircraft from 1980 through 1994. Training materials related to ditching and water survival were provided by six major airframe manufacturers and nine major airlines. The purpose of the study was to examine the information flight attendants, as well as passengers, are provided about ditching and water survival equipment and procedures, to determine if existing training practices are satisfactory. Special emphasis is placed on unplanned water landing events. The resulting analysis identifies deficiencies in both water survival equipment and procedures, and recommends solutions designed to promote more advanced water landing and water survival operations.
Report Date: July 1998