Pilot Reports "Single Word Instructions"

Question 1

If there is a single word instruction how much percent of misunderstanding will occur? (10 sec)

Answer 1

If the instruction is a single word, wrong read back ratio is 50 percent.

Question 2

What are the conclusions of these misunderstandings, please give some examples? (10 sec)

Answer 2

If the read back is wrong, it may cause an incident, an accident, an airprox and an airmiss.

Question 3

What should we do to prevent these problems? ( 20 sec)

Answer 3

To prevent these misunderstandings;

a. We should use standard aviation phraseology,
b. We should use plain language and simple English,
c. We should ask ATC for a clarification when in doubt about a clearance or an instruction,
d. We should acknowledge all required information by reading back.