Document ID: chunk:federal_register_of_legislation:F2025C00187:reg:20:p1
Version: federal_register_of_legislation:F2025C00187
Segment Type: reg
Provision Reference: reg 20 (pt 1/8)
Character Range: 411051–413988

20    Signal to Noise Ratio Filmless Autogating                                                                                                                25:1

26.78 Maintenance of the NVIS and its components
       (1) For an NVIS flight, the NVIS equipment must be maintained, stored, and checked for serviceability, in accordance with the manufacturer's requirements and procedures.
       (2) NVIS equipment must have a documented maintenance program to ensure that:
(a) maintenance, inspection, and serviceability standards for the NVIS are met; and
(b) a biennial assessment is made to identify and rectify any degradation in the compatibility of the aircraft lighting systems with the NVIS.
Note   RTCA/DO-275 (as in force from time to time) provides guidance for the ongoing maintenance of installed NVIS compatible systems.
       (3) The maintenance program must include a method for assessing NVIS compatibility with any subsequent aircraft modification, equipment introduction or repair that may have an effect on the aircraft's NVIS compatibility.
       (4) Any item of equipment other than NVIS equipment, that is fitted to, or carried on, the aircraft must not at any time adversely affect the safe operation of the aircraft in an NVIS flight.
       (5) Maintenance of NVIS must be carried out by an organisation that:
(a) complies with regulation 30 of CAR or Part 145 of CASR as if the regulation or the Part applied to the organisation for the maintenance of NVIS and its related equipment; and
(b) is endorsed in writing by the manufacturer of the NVIS as an appropriate organisation to carry out maintenance on the NVIS.
       (6) To avoid doubt, for subsection (5), maintenance includes routine scheduled servicing of NVIS.
       (7) An organisation endorsed by a manufacturer under paragraph (5) (b) for any particular NVIS manufactured in the United States (the US) that complies with the specification mentioned in paragraph 26.77 (1) (a) is taken to be endorsed for any other NVIS that:
(a) is manufactured in the US and is available in Australia; and
(b) complies with the specification mentioned in paragraph 26.77 (1) (a).
Note   This provision is to ensure that an endorsement given to an organisation by an original US manufacturer of paragraph 26.77 (1) (a)-compliant NVIS, is taken to be an endorsement for any other US manufactured NVIS available in Australia that complies with paragraph 26.77 (1) (a).
       (8) If:
(a) 1 or more image intensification tubes (tubes) fail for any reason during an NVIS flight; or
(b) 1 or more tubes fail at any time as a result of a suspected error in maintenance;
        then the operator must, within 28 days 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