Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:4:p18
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 4 (pt 18/21)
Character Range: 187264–191680

impracticable to do so. Where the preferred value is not complied with, the aerodrome manual must contain a statement to that effect, the reasons for non-compliance, and the alternative value that is complied with.

    Table 6.09 (1)-2   Friction values for continuous friction measuring devices
Test equipment                   Test tyre pressure  Test speed  Test water depth   Minimum friction level  Preferred                   Preferred
                                 (kPa)               (km/h)      (mm)
                                                                                                            Maintenance Planning Level  Design objective (for new, renewed or reconstructed  surfaces)
Mu-meter trailer                 A 70                65          1.0                0.42                    0.52                        0.72

                                 A 70                95          1.0                0.26                    0.38                        0.66
Skiddometer trailer              B 210               65          1.0                0.50                    0.60                        0.82

                                 B 210               95          1.0                0.34                    0.47                        0.74
Surface friction tester vehicle  B 210               65          1.0                0.50                    0.60                        0.82

                                 B 210               95          1.0                0.34                    0.47                        0.74
Runway friction tester vehicle   B 210               65          1.0                0.50                    0.60                        0.82

                                 B 210               95          1.0                0.41                    0.54                        0.74
TATRA friction tester vehicle    B 210               65          1.0                0.48                    0.57                        0.76

                                 B 210               95          1.0                0.42                    0.52                        0.67
RUNAR Trailer                    B 210               65          1.0                0.45                    0.52                        0.69

                                 B 210               95          1.0                0.32                    0.42                        0.63
GRIPTESTER trailer               C 140               65          1.0                0.43                    0.53                        0.74

                                 C 140               95          1.0                0.24                    0.36                        0.64

       (6) For the test equipment mentioned in a row of column 1 of Table 6.09 (1)-2, the minimum friction level for a test tyre pressure, test speed and test depth of water mentioned in the same row of columns 2, 3, and 4 respectively, is that mentioned in the same row of column 5, 6 or 7 that, in accordance with subsection (5), is for the particular pressure, speed or depth.

       (7) The surface of a grass, gravel or natural runway or runway strip:

(a) must meet the surface standards set out in Table 6.09 (7); and

(b) must not have any irregularities that:

 (i) result in the loss of frictional characteristics; or

 (ii) otherwise adversely affect the safety of take-off or landing.

       (8) For Table 6.09 (7), a surface characteristic mentioned in a row of column 1 must meet the standard for the characteristic mentioned in the same row in column 2 for runways, and column 3 for runway strips.

      Table 6.09 (7)   Standards for a grass, gravel or natural runway or runway strip
Surface                                                                           Runway  Runway strip
Maximum height of grass                                                           150 mm  300 mm
Maximum size of isolated, loose stones on natural or constructed gravel surfaces  25 mm   50 mm
Maximum size of surface cracks (transverse)                                       40 mm   75 mm
Maximum size of surface cracks (longitudinal)                                     25 mm   75 mm

       (9) For subparagraph (1) (a) (ii), whether or not any irregularities adversely affect the safety of take-off or landing must be determined by a safety analysis using the safety management system or the risk management plan