Appendix B Instrument Approach Procedures Study Techniques

APPENDIX B

INSTRUMENT APPROACH PROCEDURES STUDY TECHNIQUES

GENERAL

During preflight planning, check forecast surface wind at your destination for your ETA. The

runway in use is not always the one most closely aligned into the wind due to noise abatement

procedures or traffic patterns, but usually you can narrow the number of IAP charts to be studied.

RECOMMENDED STUDY TECHNIQUES

The following is a recommended technique to study IAP charts:

Plan view to mentally fly the approach from the IAF to the MAP and determine all lead points

and procedures that apply during the approach. Identify the point where the aircraft should be

configured for landing. You should take note of headings, NAVAID frequency and location, and

the holding pattern if published. Other information available to you on the plan view are:

1. Feeder routes are designed to channel aircraft from the enroute structure to the IAF. They

are published only if they provide an operational advantage and coincide with the normal local

air traffic flow. The course you see will take you to the IAF. The distance displayed is from the

feeder fix to the IAF.

NOTE

This is not an intersection and CANNOT be used to identify the

FAF.

2. Minimum safe altitude provides pilots who lose their radios, with at least 1000 feet of

obstacle clearance within a specified distance from the navigational facility upon which the

procedure is predicated. These altitudes are identified as minimum sector altitudes or emergency

safe altitudes and are established as follows:

Minimum sector altitudes are depicted on approach charts, which provide at

least 1000 feet of obstacle clearance within a 25-mile radius of the navigation

facility upon which the procedure is predicated. These altitudes are for

emergency use only and do not necessarily assure acceptable navigational

signal coverage.

Emergency safe altitudes are depicted on approach charts which provide at

least 1000 feet of obstacle clearance in non-mountainous areas and 2000 feet

of obstacle clearance in designated mountainous areas within a 100 miles

radius of the navigation facility upon which the procedure is predicated and

normally used only in military procedures. These altitudes are for emergency

use only and do not necessarily assure acceptable navigational signal

coverage.

INSTRUMENT APPROACH PROCEDURES STUDY TECHNIQUES

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