Which statement is NOT true about the aircraft's features?

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Overwing exits are placed where the wing structure allows a direct, safe path to evacuate onto the wing. The cabin row numbers map to seating positions relative to the wing, so overwing exits are located near the wing itself, not at a row far forward. Row 9 is typically ahead of the wing area, so an overwing exit there would not be present. That’s why the statement about having overwing exits at Row 9 isn’t true for this aircraft. The other features mentioned (wingspan, cruising speed, lavatory valve location) reflect different design details that can be true depending on the specific model, but exit placement follows wing location and safety rules, not an arbitrary row.