Final answer:
The statement is false because runway designations are based on their magnetic heading, and 'runway 4 right' refers to an orientation of 040 degrees, not N40E.
Step-by-step explanation:
The question addresses the bearing of an aircraft's departure runway, which is a concept used in navigation. Runway bearings are typically given in terms of their magnetic heading relative to true north. In this case, 'runway 4 right' would commonly mean the runway's orientation is approximately 40 degrees to the east of true north. This convention uses the first two digits of the magnetic heading to represent the runway's designation. Therefore, a runway labeled as 4 would actually represent a heading of 040 degrees.
The statement says the DC-9 leaves from runway 4 right, whose bearing is N40E. This would be better written as 040 degrees, or Runway 4, not N40E. Hence, the statement contains a misleading direction and to be accurate, it should simply refer to Runway 4. In conclusion, the given statement as it stands is false.