Document ID: chunk:federal_register_of_legislation:F2025C00187:reg:20:p2
Version: federal_register_of_legislation:F2025C00187
Segment Type: reg
Provision Reference: reg 20 (pt 2/8)
Character Range: 413742–416615

of the failure, report the failure to CASA through the Service Difficulty Reporting System using ATA Code 2590.
       (9) For paragraph (5) (b):
manufacturer means the person who is:
(a) the original manufacturer of the NVIS; or
(b) the original manufacturer of the NVG image intensification tubes fitted to the NVIS; or
(c) if parts of the NVIS are manufactured by different persons — the person who makes the final assembly of the parts into the NVIS.

26.79 Minimum aircraft equipment for NVIS flight
       (1) Subject to subsection (2), before an NVIS flight, the aircraft must be fitted with a serviceable radio altimeter that:
(a) conforms to the following requirements:
           (i) it must have a display presentation that requires minimal interpretation for both an instantaneous impression of absolute height and rate of change of height;
           (ii) subject to subsection (2), it must be positioned to be instantly visible and discernible to each NVIS crew member from the person's station in the cockpit;
           (iii) it must have an integral audio and visual low height warning that operates at a height selectable by the pilot;
           (iv) it must provide unambiguous warning to each NVIS crew member of radio altimeter failure; and
(b) has a visual warning system that provides clear visual warning at each cockpit crew station of height below the pilot-selectable height; and
(c) has an audio warning system that:
           (i) is unambiguous and readily cancellable; and
           (ii) when cancelled — does not extinguish any visual low height warnings; and
           (iii) operates at the same pilot-selectable height as the visual warning.
       (2) Subparagraph (1) (a) (ii) does not take effect until 2 December 2023.
       (3) A rotorcraft for an NVIS operation must be fitted with a serviceable pilot-steerable searchlight, adjustable in both pitch and azimuth from the flight controls.
       (4) Before an NVIS operation, the operator and the pilot in command must be satisfied that:
(a) in an NVIS operation below 500 ft AGL; or
(b) in an NVIS operation from an HLS-NVIS basic using a searchlight with an NVIS compatible IR filter;
        the risk of an adverse event as a result of NVIS failure below 500 ft AGL is controlled by:
(c) the aircraft's capacity to revert immediately to a non-filtered search or landing light; or
(d) the presence of 2 pilots, each of whom:
           (i) is NVIS qualified and NVIS equipped; and
           (ii) has access to dual flight controls.

CHAPTER 27 EXPERIMENTAL AND LIGHT SPORT AIRCRAFT PLACARDS

27.01 Experimental aircraft — placards
       (1) For subparagraph 91.875 (2) (i) (iii), this section prescribes the requirements for a placard that must be displayed inside an experimental aircraft carrying one or more passengers.
       (2) The placard must:
(a) be displayed in full