; and (B) all personnel of such station authorized to approve an article for return to service are appropriately certificated as a mechanic or repairman under part 65 of such title, or under an equivalent certification or licensing regime, as determined by the Administrator. (2) Available for consultation Not later than 18 months after the date of enactment of this subsection, the Administrator shall require any individual who is responsible for approving an article for return to service or who is directly in charge of heavy maintenance work performed on aircraft operated by a part 121 air carrier be available for consultation while work is being performed at a covered repair station. . (2) Definitions (A) In general Section 44733(j) of title 49, United States Code (as redesignated by this section), is amended— (i) in paragraph (1) by striking aircraft and inserting aircraft (including on-wing aircraft engines) ; (ii) by redesignating paragraphs (1) through (3) as paragraphs (2) through (4), respectively; and (iii) by inserting before paragraph (2), as so redesignated, the following: (1) Covered repair station The term covered repair station means a facility that— (A) is located outside the United States; (B) is a part 145 repair station