Furthermore:
61.400 Limitations on exercise of privileges of pilot licences—flight review
(1) For this Part, successful completion of a flight review for a rating on a pilot licence requires demonstration, to a person mentioned in subregulation (2), that the holder of the rating is competent in each unit of competency mentioned in the Part 61 Manual of Standards for the rating.
(2) For subregulation (1), the persons are as follows:
(a) CASA;
(b) the holder of an approval under regulation 61.040 for this regulation;
(c) a pilot instructor who is authorised to conduct a flight review for the rating.
(3) The flight review must be conducted in:
(a) an aircraft that can be flown under the rating; or
(b) an approved flight simulator for the flight review.
Isn't a grade 1 instructor the person mentioned in (C)?