Document ID: chunk:federal_register_of_legislation:F2024C01173:reg:4:p16
Version: federal_register_of_legislation:F2024C01173
Segment Type: reg
Provision Reference: reg 4 (pt 16/18)
Character Range: 183735–186476

engine inoperative, must have an available gross gradient of climb of at least:
 (a) if the aeroplane has 2 engines—1.2%; and
 (b) if the aeroplane has 3 engines—1.4%; and
 (c) if the aeroplane has 4 engines—1.5%.

9.07  Gross gradient requirements—en route configuration
 (1) This section sets out, for the purposes of paragraph 9.02(a), the requirements relating to gross gradients in the en route configuration.
 (2) In the en route configuration existing at the end of the level flight acceleration manoeuvre, the aeroplane must be able to achieve a gross gradient of climb of at least:
 (a) if the aeroplane has 2 engines—1.2%; and
 (b) if the aeroplane has 3 engines—1.4%; and
 (c) if the aeroplane has 4 engines—1.5%.
 (3) For the purposes of subsection (2), the gradient of climb must be achievable at final take-off climb speed with the critical engine inoperative and the remaining engines at maximum continuous power or thrust.

9.08  En route requirements

General requirements
 (1) It is a requirement, for the purposes of paragraph 9.02(a), that the aeroplane:
 (a) following the critical engine failing at the most critical point along the route; and
 (b) in accordance with the one‑engine‑inoperative net flight path data contained within the performance data, used in accordance with regulation 121.390 of CASR;
is able to comply with the requirements in subsection (2).
 (2) For subsection (1), the requirements are that, subject to subsection (4), the net flight path:
 (a) during flight from the cruising altitude to an aerodrome where a landing can be made in accordance with Division 2 of this Chapter, must:
 (i) have a positive slope at 1 000 ft above all terrain and obstructions within 5 NM of the intended track to be flown; or
 (ii) clear all terrain and obstructions by at least 2 000 ft vertically, within 5 NM of the intended track to be flown; and
 (b) must have a positive slope at 1 500 ft above the aerodrome where the landing is assumed to be made after the engine failure.
 (3) For the purposes of subsection (2), the operator and the pilot in command must take into account:
 (a) the effects of forecast wind on the flight path; and
 (b) the effect of the icing protection systems if the meteorological conditions require their operation; and
 (c) fuel jettisoning to an extent consistent with reaching the aerodrome with the required fuel reserves.
Note: Chapter 4 contains requirements relating to the selection of en‑route alternate aerodromes.
 (4) Despite subsection (2), the route width margins mentioned in subparagraph (2)(a)(i) or (ii) must be increased to 10 NM if the aeroplane cannot maintain a track using a navigation specification of RNP 2 or better.

En-route 90-minute limitation for 3-