A flight crew member who is engaged by more than one operator or otherwise accumulates flight time outside of his or her employment, shall maintain an accurate record of his or her flight time and duty periods and shall provide copies thereof to all operators by whom such crew member is engaged. While the crew member is responsible to report all flight activity, each employer maintains responsibility to ensure the crew member concerned does not exceed the limits prescribed in the flight time and duty scheme of the operator referred to in Regulation 128.02.5.