Encl. (1) to COMDTINST 3710.5A
2. Days Away From Home Station (DAHS). The number of days an aircraft is away from the
parent command on any mission for a continuous period of 12 or more hours. Days supporting
Air Facilities do not count towards the DAHS total. When operational necessity requires that
DAHS limits be exceeded, schedules in the succeeding year should be decreased so that the
unit's two-year DAHS average will not exceed the limit.
2