The mission report for 1st Dec 1943 on page 299 and 300 of the partial 56th Operational records. ( Microfilm B0151) shows a claim of 3-0-0 for that mission.
Confirmed kills for Justus Foster and Dick Mudge of the 61st FS and Fred Christensen of the 62nd. No mention of a damaged claim by Ralph Johnson.
Dick Mudge's combat report for that day can be seen on the 56th website.
Hope this helps,
Nige
www.56thfightergroup.co.uk