Angle of attack
Angle of attack is only measurable during refuelling operations. A slightly high angle results in a dribble. There is no need to report this to either your colleagues or on your Maintenance Release. However, too much angle results in significant spillage. CASA Penalty for large angle of attack: One round of refuelling for all pilots within your direct and peripheral vision.
The term can also refer to operations after refuelling. After significant refuelling operations you may involuntarily experience psychsomatic symptoms. To counteract this, most pilots involuntarily deploy their an otherwise ineffective protective device called beer goggles. Such pilots may think that their angle of attack is impressive but they are typically subject to visual illusions, especially if operating night VFR (some even attempt this IFR). From time-to-time, after-refuelling angle of attack can, surprisingly, operate within the designated operational envelope. A recently published CAAP recommends that you if you are in this operational envelope you should open it, especially if there is a French communication within.
Stall warning
Related to the refuelling operations above, it can either mean: a) A failure in the use of radio communication to attract someone previously positively radar identified through the "beer goggles"; or b) An imminent pump failure. You may need to initiate the boost pump and/or add additional type certified lubricant to rectify this situation.
A CASA-approved alternative means of compliance is also available in this situation. You should disregard the angle (of attack) of the dangle and ensure that the motion of ocean has been calibrated through non-destructive testing.