Document ID: chunk:federal_register_of_legislation:F2022C00813:reg:300:p19
Version: federal_register_of_legislation:F2022C00813
Segment Type: reg
Provision Reference: reg 300 (pt 19/27)
Character Range: 120770–123610

(b)         once radar contact is established, it must be maintained for the remainder of the approach.

8.6.6.4              Radar target validation must be completed:

(a)         before the VF during a direct approach; or

(b)         before entering the outbound leg of an overhead approach.

8.6.6.5              Data requirements. Distance, bearing and coordinate data must comply with the quality control requirements specified in Chapter 2 of Annex 11, and in Chapter 2 of Annex 14 — Aerodromes, Volume II, of the Convention on International Civil Aviation, published by ICAO.

8.6.6.6              Reduction of closest distance to nearest land to 15 NM. Despite paragraph 8.6.2.1, the closest distance to nearest land of a TIFP may be reduced to 15 NM but only if:

(a)         radar target validation is completed by 10 NM from the ATP; and

(b)         there is no terrain (other than low terrain, if any) within 15 NM of the ATP; and

(c)          the helicopter flight crew is automatically presented with the VF location as an offset from the ATP; and

       Note   The VF location is not determined by hand-entered latitude and longitude.

(d)         any obstacle greater than 500 ft AMSL:

(i)            within a 15 NM radius of the ATP; and

(ii)          within 4 NM of the aircraft track;

is identified by the crew; and

(e)         the amount by which any obstacle exceeds 500 ft AMSL is added to the holding and initial approach altitudes.

8.6.6.7              Overlap of land. If:

(a)         during a direct approach procedure, an ATP located between 30 NM and 15 NM from the coast, results in the holding area overlapping land; and

(b)         relocation of the VF and associated holding area does not prevent the overlap;

 then, the method for calculating the overlap is as set out in Appendix 2, Calculation of a holding area/land overlap in direct approach procedures.

8.6.6.8              If:

(a)         a land overlap cannot be eliminated by:

(i)            relocation of the VF; or

(ii)          the reorientation of the direct approach direction; and

(b)         the nature of the land does not meet the low terrain requirement; and

(c)          a holding pattern is to be flown;

 then, only an overhead approach procedure may be flown.

8.6.7                   Procedure area

8.6.7.1              Secondary areas do not apply to a TIFP area.

8.6.7.2              For navigation specification RNP 0.3, RNP 1, RNP 2 and RNAV 1 and 2, the area semi-width is 2.4 NM.

       Note   The area semi-width of 2.4 NM is adhered to because RNP 2 and RNAV 2 area primary area semi-width is 2 NM and is fully contained by the procedure area.

       The development of the 2.4 NM area semi-width is based on an area length of 8.4 NM. This distance allows a helicopter transit time of 9.4 minutes to the