[Regulation 91.07.35 heading substituted by regulation 9(h) of Notice No. R. 432, GG 40846, dated 19 May 2017 (Sixteenth Amendment of the Civil Aviation Regulations, 2017)]
| (1) | Requirements for operations beyond 60 minutes to an en-route alternate aerodrome |
| (a) | Operators conducting operations beyond 60 minutes, from a point on a route to an en-route alternate aerodrome shall ensure that: |
| (aa) | en-route alternate aerodromes are identified; and |
| (bb) | the most up-to-date information is provided to the flight crew on identified en-route alternate aerodromes, including operational status and meteorological conditions; |
| (ii) | for aeroplanes with two turbine engines, the most up-to-date information provided to the flight crew indicates that conditions at identified en-route alternate aerodromes will be at or above the operator's established aerodrome operating minima for the operation at the estimated time of use. |
| (b) | In addition to the requirements in paragraph (a), all operators shall ensure that the following are taken into account and provide the overall level of safety intended by the provisions of this Part: |
| (i) | operational control and flight dispatch procedures; |
| (ii) | operating procedures; and |
| (iii) | training programmes. |
| (2) | Requirements for EDTO: |
[Words preceding regulation 91.07.35(2)(a) substituted by regulation 9(i) of Notice No. R. 432, GG 40846, dated 19 May 2017 (Sixteenth Amendment of the Civil Aviation Regulations, 2017)]
| (a) | Unless the operation has been specifically approved by the Director, an aeroplane with two or more turbine engines shall not be operated on a route where diversion time from any point on the route, calculated in ISA and still air conditions at the one-engine inoperative cruise speed for aeroplanes with two turbine engines and at the all-engine operating cruise speed for aeroplanes with more than two turbine engines, to an adequate en-route alternate aerodrome exceeds a threshold time established for such operations. |
| (b) | The maximum diversion time, for an operator of a particular aeroplane type engaged in extended diversion time operations shall be approved by the Director. |
| (c) | When approving the appropriate maximum diversion time for an operator for a particular aeroplane type engaged in EDTO, the Director shall be satisfied that: |
| (i) | for all aeroplanes, the maximum diversion time shall not exceed the value of the EDTO significant system time limitation, if any, indicated in the aircraft flight manual directly or by reference, reduced by an operational safety margin of 15 minutes; and |
| (ii) | for an aeroplane with two turbine engines, the aeroplane is EDTO certified. |
[Regulation 91.07.35(2)(c) substituted by regulation 9(i) of Notice No. R. 432, GG 40846, dated 19 May 2017 (Sixteenth Amendment of the Civil Aviation Regulations, 2017)]
| (d) | Notwithstanding the provisions of said paragraph 91.07.35(2)(c)(i), the Director may, based on the results of a specific safety risk assessment conducted by the operator which demonstrates how an equivalent level of safety will be maintained, approve operations beyond the time limits of the most time-limited system. The specific safety risk assessment shall include at least the: |
| (i) | capabilities of the operator; |
| (ii) | overall reliability of the aeroplane; |
| (iii) | reliability of each time limited system; |
| (iv) | relevant information from the aeroplane manufacturer; and |
| (v) | specific mitigation measures. |
| (e) | For aeroplanes engaged in EDTO, the additional fuel required by paragraph 91.07.12 of subregulation (3)(f) shall include the fuel necessary to comply with the EDTO critical fuel scenario as established by the Director. |
| (f) | A flight shall not proceed beyond the threshold time in accordance with subregulation 91.07.35(2)(a) unless the identified en-route alternate aerodromes have been re-evaluated for availability and the most up to date information indicates that, during the estimated time of use, conditions at those aerodromes will be at or above the operator's established aerodrome operating minima for the operation. If any conditions are identified that would preclude a safe approach and landing at that aerodrome during the estimated time of use, an alternative course of action shall be determined. |
| (g) | The Director shall, when approving maximum diversion times for aeroplanes with two turbine engines, ensure that the following are taken into account in providing the overall level of safety intended: |
| (i) | reliability of the propulsion system; |
| (ii) | airworthiness certification for EDTO of the aeroplane type; and |
| (iii) | EDTO maintenance programme |
Note When the diversion time exceeds the threshold time, the operation is considered to be an extended diversion time operation (EDTO)
Note: For the purpose of EDTO, the take-off and/or destination aerodromes may be considered en-route alternate aerodromes.
[Regulation 91.07.35 inserted by regulation 16 of Notice No. R535, GG 36712, dated 30 July 2013 (Fourth Amendment to the Civil Aviation Regulations, 2013)]
