Document ID: chunk:federal_register_of_legislation:F2022C00813:front:0:p19
Version: federal_register_of_legislation:F2022C00813
Segment Type: other
Provision Reference: 
Character Range: 53800–56913

of the GPS Arrival Sector A have been checked and the procedure is acceptable subject to the above-mentioned changes (if any) being incorporated.
3. The aerodrome is currently certified/registered/other.
4. The WDIs are suitable for straight-in approaches to runways …………………… and
unsuitable for straight-in approaches to runways ………………… . The suitable WDIs
are/are not illuminated.
5. The approach procedures were/were not found to be operationally suitable for straight-in minimas.

(Signature of validation pilot)

Chapter 8:   Design Standards

Section 8.1:   General

8.1.1                   Procedure Design

8.1.1.1              Performance Category Groups. Procedures should normally be designed for category groups. Common grouping is A/B and C/D. Unless specific operational gain is necessary, groups must not be split for OCA penalties of less than 100 ft.

8.1.1.2              Category E. Category E procedures will not normally be designed.

8.1.1.3              Overlapping Procedures. The primary areas for instrument approach procedures other than DME Arrivals must not be closer than one nautical mile to the primary area of a procedure to a second aerodrome, unless all procedures involved are wholly contained in controlled airspace. Where this is not practical, vertical separation may be used to ensure that a minimum of 1,000 ft is maintained between aircraft on the two procedures.

8.1.1.4              Airspace Buffers. Procedures within controlled airspace must be designed so that:

(a)         horizontally:

(i)            a 1 NM buffer is provided between the airspace boundary and the boundary of:

(A)        for holding—the primary holding area;

(B)        for non-precision approach segments—the primary area;

(C)        for precision approach segments—the OAS W and X surfaces.

(b)         vertically:

(i)            A 500 ft buffer is provided between the nominal aircraft position and an airspace boundary set for VFR level; or

(ii)          A 1,000 ft buffer is provided between the nominal aircraft position and an airspace boundary set at a useable IFR level;

except for precision approaches where, in addition, the basic ILS surfaces must be wholly contained within the controlled airspace boundary;

(c)          for the Missed Approach Segment:

(i)            clearance from airspace is determined using a combination of vertical and horizontal dimensions:

(A)        vertically, the height of the nominal aircraft position in a missed approach is determined by applying the techniques of PANS-OPS Vol II, or ICAO Doc 9905 missed approach criteria, using a gradient of 5% from the SOC to the missed approach altitude;

(B)        if this height conflicts with airspace, then horizontally a 1 NM buffer is provided between the airspace boundary and the missed approach primary area.
Note: If airspace considerations require a nominal gradient greater than 5%, the IAL chart must show a climb gradient identified by an asterisk.

8.1.1.5              Prohibited and Restricted (P and R) Areas. Procedures which cross or abut P and R areas must be designed so that: