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Home > Exam Questions > ATPL - Airline Transport Pilot Licence > Air Law > Under current SERA rules, a controlled flight is at cruising level without an ATC-assigned speed. At what sustained variation of true airspeed from the current flight plan must the appropriate ATS unit be informed?

13 - ATPL Question Bank in English - Under current SERA rules, a controlled flight is at cruising level without an ATC-assigned speed. At what sustained variation of true airspeed from the current flight plan must the appropriate ATS unit be informed?

Question 13 - Air Law - ATPL - Airline Transport Pilot Licence

A variation of 5% of the planned TAS, irrespective of the number of knots

Only when the variation exceeds 20 kt

A variation of plus or minus 10 kt TAS or more

Only when the speed variation creates an emergency

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