The Civil Aviation Authority claims the pilot operated the aircraft carelessly based on issues surrounding crosswind, cloud altitude, departure time and lighting.
Captain Julian told the court the rules surrounding these matters were not broken by the pilot and the decisions made by the pilot were "typical industry practice".
This included the pilot's use of windsocks as a measure for crosswinds.
He said the windsocks near the runway provided an accurate measure, and unlike wind reports from the control tower, were not exposed to transmission or technical delays.
The pilot had disagreed with the tower's reading of winds of up to 19 knots before take-off and assessed crosswind levels to be well under 16 knots.
In common with the pilot in question, Captain Julian did not see the necessity to apply an anti-ice increment to the wings of the aircraft.
Captain Julian has given evidence in three aviation accidents.