Are you rated as PIC in the Citation? Is the sim instructor a CFI rated in the Citation? It's a proficiency check but I'm not sure if it would be legal unless you're checked as PIC, and have the type rating. At the airline I didn't need a FR as every 6 months we had a proficiency check, but I was typed in the aircraft.
It may be legal to sign off an IPC too if you perform the requirements for an IPC. Again, I'm not sure if you're rated as SIC only if it could be applicable. Have you inquired at the sim center? They may know the answer. Sorry I couldn't help ya.
References
Selected portions of 14
CFR § 61.56
(a) A flight review consists of a minimum of 1 hour of
flight training and 1 hour of ground training. The review
must include:
(1)
A review of the current general operating and flight
rules of part 91 of this chapter; and
(2) A review of those
maneuvers and procedures that, at
the discretion of the person giving the review, are
necessary for the pilot to demonstrate the safe exercise
of the privileges of the pilot certificate.
(c) Except as provided in paragraphs (d), (e), and (g) of this
secti
on, no person may act as pilot in command of an
aircraft unless, since the beginning of the 24th calendar
month before the month in which that pilot acts as pilot in
command, that person has
—
(1) Accomplished a flight review given in an aircraft
for which that pilot is rated by an authorized instructor
and
(2) A logbook endorsed from an authorized instructor
who gave the review certifying that the person has
satisfactorily completed the review.
(d) A person who has, within the period specified in
paragraph
(c) of this section, passed any of the following
need not accomplish the flight review required by this
section:
(1) A
pilot proficiency check or practical test conducted
by an examiner, an approved pilot check airman, or a
U.S. Armed Force, for a pilot certificate, rating, or
operating privilege.
(2) A practical test conducted by an examiner for the
issuance of a flight instructor certificate, an additional
rating on a flight instructor certificate, renewal of a
flight instructor certificate, or reinstatem
ent of a flight
instructor certificate.
(e) A person who has, within the period specified in
paragraph (c) of this section, satisfactorily accomplished
one or more phases of an FAA
-sponsored pilot proficiency
award program need not accomplish the flight re
view
required by this section.