Text in force at CS29-12: from CS29-0, effective 14 Nov 2003.
The unusable fuel supply for each tank must be established as n ot less th an th e q uantity at wh ich the first evidence of malfunction occurs under t he most adverse fuel feed condi tion occurri ng under any i ntended operat ions and fl ight m anoeuvres involving that tank.
ED Decision 2003/016/RM · Source