Document ID: chunk:federal_register_of_legislation:F2024C01173:front:0:p8
Version: federal_register_of_legislation:F2024C01173
Segment Type: other
Provision Reference: 
Character Range: 28221–31246

manufacturer of an aeroplane and as existing from time to time, that:
 (a) specifies the minimum requirements for the aeroplane's configuration, including any special inspections, flight crew procedures, hardware life limits, MMEL constraints and maintenance practices necessary to establish the suitability of the airframe/engine combination for extended diversion time operations; and
 (b) is approved by the certification authority for the aeroplane.
contingency fuel: see section 7.03.
critical point means a point en route during a flight of an aeroplane, determined by the operator or the pilot in command for the flight before the flight commences, at which the aeroplane can:
 (a) if it arrives at the point with adequate fuel to complete the flight to the planned destination aerodrome while maintaining the fuel required by subsection 7.05(3)—continue to that aerodrome; or
 (b) otherwise—divert to an en-route alternate aerodrome while maintaining the fuel required by subsection 7.05(3).
CVR: see section 11.28.
DA means decision altitude.
destination alternate aerodrome means an alternate aerodrome that is a destination alternate (within the meaning of Annex 2 to the Chicago Convention).
destination alternate fuel: see section 7.02.
DH means decision height.
diversion time, in relation to an aeroplane and an EDTO, means the time it would take for the aeroplane to fly from a point on a route, occurring beyond the threshold distance for the aeroplane, to an adequate aerodrome for the aeroplane.
Note: The term adequate aerodrome is defined in the CASR Dictionary as follows:
 "adequate aerodrome, in relation to a flight of an aeroplane, means an aerodrome that complies with the following:
                 1.      an authorised weather forecast for the aerodrome must be available for the aeroplane's estimated time of use of the aerodrome;
                 2.      the aerodrome's services and facilities must be operational for at least the estimated time of use;
                 3.      the landing distance available for the aeroplane must be at least the landing distance required under these Regulations for the aeroplane's landing at the aerodrome;
                 4.      for an IFR flight—at least one authorised instrument approach procedure that is suitable for use by the aeroplane must be operational for at least the estimated time of use."
(E)TSO, followed by an identifying letter and number, is a shorthand reference to both the TSO and the ETSO, each of which has the same identifying letter and number.
EDTO, or extended diversion time operation, means an operation in which an aeroplane is flown further from an adequate aerodrome for the aeroplane than the threshold distance for the aeroplane.
EDTO approval means an approval, mentioned in paragraph 121.035(1)(b) of CASR, to conduct extended diversion time operations using a particular aeroplane and airframe/engine combination.
Note: An approval mentioned in paragraph 121.035(1)(b) of CASR is granted under regulation 121.010