At STRUT intersection headed eastbound, what entry procedure should be used when instructed to hold west on the 10 DME fix?

When approaching the STRUT intersection while headed eastbound, and given an instruction to hold west on the 10 DME fix, the appropriate entry procedure is through a direct entry. In this case, a direct entry means that the aircraft can fly straight to the holding fix from its current position without needing to adjust for any angle or turn.

Using a direct entry aligns with the guidelines established in holding procedures, where the pilot can easily navigate directly to the fix because the holding pattern is symmetrical and does not require any complicated maneuvers. Since the aircraft is approaching the holding fix coming from east to west, this creates a straightforward approach to the hold.

Other entry procedures like teardrop or parallel would be used in situations where the entry into the hold may be at a different angle or where the aircraft is required to reposition itself before entering the holding pattern—this is not necessary in this scenario. Thus, the choice of direct entry is most efficient and meets the expectations for this holding pattern.