14 C.F.R. § 194.308
(d) No person may operate a powered-lift in a commercial air tour unless that person complies with the regulations listed in the first column of table 1 to this section, notwithstanding their applicability to airplanes or rotorcraft, subject to the applicability provisions in the second column, and any additional requirements or clarification specified in the third column:
| Regulation | Applicability | Additional Requirements or Clarification |
|---|---|---|
| Part 136, Subpart A National Air Tour Safety Standards | ||
| (1) Section 136.9 | Applies to powered-lift used in commercial air tours over water beyond the shoreline. | (i) Section 136.9(b)(2) applies to powered-lift operating in wing-borne flight mode within power-off gliding distance to the shoreline for the duration of the time that the flight is over water.(ii) Section 136.9(b)(3), applies to multiengine powered-lift that can be operated with the critical engine inoperative or while experiencing a critical change of thrust, at a weight that will allow it to climb, at least 50 feet a minute, at an altitude of 1,000 feet above the surface, as provided in the approved aircraft flight manual for that aircraft. |
| (2) Section 136.11 | Applies to powered-lift used in commercial air tours over water beyond the shoreline. | (i) Section 136.11(a)(1) applies to single-engine powered-lift.(ii) Section 136.11(a)(2) applies to multi-engine powered-lift that cannot be operated with the critical engine inoperative or while experiencing a critical change of thrust, at a weight that will allow it to climb, at least 50 feet a minute, at an altitude of 1,000 feet above the surface, as provided in the approved aircraft flight manual for that aircraft. |
| (3) Section 136.13 | Applies to powered-lift. | |
| (4) Section 136.75(a) | Applies to all single-engine powered-lift conducting air tours in Hawaii beyond the shore of any island. | |
| (5) Section 136.75(b) | Applies to powered-lift. | |
| (6) Section 136.75(c) | Applies to powered-lift with an Aircraft Flight Manual containing height velocity information. | Except for approach to and transition from a hover, and except for the purpose of takeoff and landing, the PIC of a powered-lift may only operate such aircraft at a combination of height and forward speed (including hover) that would permit a safe landing in the event of engine power loss or critical change of thrust, in accordance with the height-speed envelope for that powered-lift under current weight and aircraft altitude. |