Document ID: chunk:federal_register_of_legislation:F2024C01173:reg:5:p2
Version: federal_register_of_legislation:F2024C01173
Segment Type: reg
Provision Reference: reg 5 (pt 2/2)
Character Range: 88941–90521

at least a probability of 30% or greater of a thunderstorm or its associated severe turbulence.

Holding fuel—operationally limiting weather conditions
 (2) Despite subsection (1), if relevant weather conditions would represent an operationally limiting condition, the weather is taken not to be present if, for the flight, the aeroplane carries the amount of holding fuel mentioned in subsection (3).
 (3) For subsection (2), and subject to subsections 4.06(4) to (7), the amount of holding fuel must be at least equal to the number of minutes of the period of the overlap of:
 (a) the estimated time of use; and
 (b) the time at which the operationally limiting weather conditions would no longer apply to the flight.
Note: Section 4.06 includes rules relating to when intermittent, temporary or other pertinent weather conditions are taken to be present.

4.05  Estimated time of use of aerodromes for flight preparation (Part 121 alternate aerodromes) requirements
  For the purpose of the flight preparation (Part 121 alternate aerodromes) requirements, the estimated time of use by an aeroplane, of an aerodrome mentioned in an item of table 4.05, is taken to be the period mentioned in column 2 of the item.

Table 4.05—Estimated time of use
Item                              Column 1                                                                                                                 Column 2

                                  Aerodrome                                                                                                                The period: