If:
(a) an independent maintainer is carrying out maintenance on an aircraft, or is supervising the carrying out of maintenance on an aircraft by another individual; and
(b) the independent maintainer becomes aware of a major defect in the aircraft;
the independent maintainer must report the defect to the person responsible for continuing airworthiness for the aircraft.
Note 1: See also regulations 42.110, 42.115 and 42.270 for other requirements relating to defects.
Note 2: See regulation 42.390 for the requirements for making a report.
Note 3: A person mentioned in item 1 of table 42.300 is the only independent maintainer who is permitted to supervise the carrying out of maintenance by another individual--see subregulation 42.300(2).