Aircraft Flight Operation Regulations Article 170

The assignment of flight duty for airplane pilots shall meet the following criteria:1. Except for aircraft newly introduced into service, within 120 days after the satisfactory completion of an aircraft type rating check, the pilot shall acquire the line operating experience of no less than 50 hours of flight time or 20 landings in the aircraft type in which the pilot is to serve.2. The training for line operating experience shall focus on respective phases in flight, which include the phases of take-off, climb, cruise, approach and landing. The pilot of initial operating experience shall perform flight duty in respective phase of flight at least 4 times.3. When a pilot is assigned to operate other aircraft type before the completion of the initial operating experience of an aircraft type, re-qualification training shall be given before that pilot can be reassigned to a flight duty of such aircraft type.4. Except for aircraft newly introduced into service, the pilot-in-command (PIC) shall not be assigned a flight duty with a junior first officer unless either one of them has acquired an operating experience of no less than 75 hours flight time.5. The acquisition of initial operating experience for newly hired pilots shall be conducted under the supervision of an instructor pilot or a check airman. The flight time in which a pilot serves as an observer is not considered as part of operating experience.6. In any flight, when a first officer has not logged 100 hours of flight time in the aircraft type in which he is to flight, the captain shall perform the take-off and landing when the visibility is less than 1,200 m or when the runway intended to be landed is covered with water, slush or ice.