German submarine U 117 under repair at the Kaiserliche Werft, Kiel, Germany in 1918

A list dealing dated 5 July 1918 reported the status of work on the submarines expected on 7 July 1918. Work started on 18 June 1918. Planned completion on 30 June. Description of the work fore ship and tank damage. Remarks departed on 2 July.

Source

Bundesarchiv RM 3-11254.