Which of the following is NOT an approved pattern entry for RWY 28L/R from Southeast or MacDonald's Bridge?

• A. Right base; Straight in; Right downwind
• B. Crosswind; Straight In; Left base
• C. Straight In; Left base; Left downwind
• D. Overhead; Straight in; Left base

Answer: (A)

Pattern entries must fit the established traffic pattern direction around RWY 28L/R and follow a sensible sequence into the final. When the field uses a left-hand pattern, you join the pattern on the left side (left downwind, then left base, then final) or use an overhead/straight-in entry that leads into the left-hand flow.

The entry that starts with a right base (and includes a right downwind) implies a right-hand pattern from the start. Since the published pattern from that location is left-hand, this right-hand sequence isn’t an approved way to enter. Also, placing a straight-in in the middle of a base-to-final sequence doesn’t align with how pattern entries are described or flown for a left-hand pattern.

The other options stay within a left-hand pattern or use an overhead entry that then joins the left-side legs, which are valid. So the entry beginning with right base is not an approved pattern entry.