Commonwealth Consolidated Regulations Commonwealth Consolidated Regulations(1) Part 42 applies to:
(a) a registered aircraft that is used to conduct a Part 121 operation that is a scheduled air transport operation; and
(aa) a registered aircraft that is used to conduct a Part 135 operation that is a scheduled air transport operation; and
(b) a registered aircraft for which an election under regulation 202.181 is in force; and
(c) an aeronautical product for an aircraft mentioned in paragraph (a) or (b).
(2) Part 42 applies to a Part 145 organisation that is providing maintenance services for:
(a) an aircraft mentioned in paragraph (1)(a) or (b); or
(b) an aeronautical product for an aircraft mentioned in paragraph (1)(a) or (b).
(3) Part 42 applies to an independent maintainer mentioned in item 4 or 5 of table 42.300 who is carrying out maintenance on an aircraft mentioned in paragraph (1)(a) or (b).