Aircraft Flight Operation Regulations Article 33
An operator shall maintain fuel records and oil for a period of three months for CAA inspection.
中文原文 航空器飛航作業管理規則第33條
航空器使用人應保存最近三個月燃油及滑油之使用紀錄以便查核。
English translation for reference only; the Chinese text prevails. Not legal advice.