The report is the second of two describing the results of a world-wide survey of the maintenance activities of UH-1 helicopter mechanics for the purpose of studying the relationships among job requirements, training, and manpower considerations for aviation maintenance. A summary of the results of the first report is included. The survey questionnaire administered to 5,030 mechanics contained a task inventory of 1,323 specific maintenance tasks and was also designed to obtain information regarding background, experience, and training of the mechanics and general maintenance information concerning the performance of their jobs. Responses from 2,978 mechanics provided a broad profile of the UH-1 maintenance personnel. Detailed data presented in the report are based on the responses of 771 personnel, who at the time they were surveyed were job incumbents performing or supervising UH-1 maintenance in combat units in Vietnam. A discussion of the findings and nine general conclusions concerning training curriculum development are presented in the report. Appended material (267 pages) includes frequency of performance tables for maintenance tasks presented according to various maintenance and experience levels and an examination of the comparability of the two forms of the job description inventories. (Author/MS)