TCDS（Type Certificate Data Sheets） 是型號合格證書數據表。
1. The Type Certificate Data Sheets (TCDS) database is a repository of Make and Model information. The TCDS is a formal description of the aircraft, engine or propeller. It lists limitations and information required for type certification including airspeed limits, weight limits, thrust limitations, etc.
TCDS documents are available from the initial implementation of this database (April 1999) forward. Historical documents prior to implementation are not necessarily included in this database; however, historical information will be retained as additional documents and revisions to documents are incorporated into the database.
Revision History refers to those documents that have been revised through a TCDS revision. Current documents refer to those that are the most current. When looking at the TCDS and Model information in any of the Revision History views, the checkmark indicates the current documents.
型號合格證書數據表是用於儲存飛機模版的倉庫。它是對飛機，發動機和螺旋槳的正式描述，其中羅列了型號合格證書（TC）所要求的限制和信息，如速度、重量、推力限制等等...
型號合格證書數據表可用於此數據表初次執行之前。 在執行前的歷史文檔不需要包含此數據表，但是，歷史信息將作為補充檔案和改版整合進數據表中保存起來。
修訂歷史通過型號合格證書數據表引用改版文檔。現行文檔參考當前最新的有效信息。當查看有關於型號合格證書數據表和型號信息的修訂歷史時，現行文檔會用檢查記號標記起來。
