Total defects = January defects + February defects + March defects
Total defects = 14 + 15 + 19
Total defects = <<14+15+19=48>>48
Therefore, there were a total of 48 defects in January, February, and March combined.
The next three months produced the same total number of defects as the first three months.
However, each of April, May, and June produced the same number of defects.
How many defects were there in April?
Since the next three months produced the same total number of defects as the first three months, we can divide the total defects by 3 to find the number of defects in each month.
48 defects / 3 months = 16 defects per month
Therefore, there were 16 defects in April.