Flight Instructors Training Procedures _revised AIC_x

1. AIM
LESSON 21
THE ILS APPROACHES
The aim of this exercise is to teach the student to fly and ILS approach and carry out a missed
approach.
DEFINITION
The ILS approach is a series of manoeuvres carried out with sole reference to the instruments in the
aircraft where directional and vertical guidance is provided to the pilot on the ILS instrument.
2. WHY IT IS BEING TAUGHT
This exercise is taught so that the student will be able to fly and ILS approach enabling an approach to
be flown to much lower minima. The ILS approach when combined with radar vectors are the quickest
and most accurate type of approach increasing traffic flow.
3. WHAT THE INSTRUCTOR IS TO TEACH
i. The principles of operation of the ILS system.
ii. The limitations of the ILS system.
iii. How to read and interpret an ILS approach chart.
iv. How to determine the approximate rate of descent required.
v. Drift correction procedure.
vi. Various types of precision approach lighting.
vii. What conditions must be met for the approach to be continued visually to landing.
viii. What lights should be visible at DH/DA.
ix. The significance of the marker beacons.
x. The significance of the Outer Marker (OM) crossing altitude.
xi. The criteria for going around if the approach become unstabilised.
xii. How to use the NDB or VOR to determine how close the aircraft is to the localiser.
xiii. Recap on how the wind changes with altitude.
4. THE AIR EXERCISE
i. THE FIRST APPROACH i. It is suggested that the instructor fly the first
ILS approach whilst pointing out the
indications on the various instruments.
ii. The instructor must stress that the ILS
indicator needles must never be chased.
The ILS approach is flown by flying a ROD
which is controlled with power and any small
adjustments through very small pitch
changes.
iii. It is vital that the instructor emphasize the
need to check the published Outer Marker
crossing altitude with the actual OM crossing
altitude. At this point it is suggested that the
student be made to make a call such as
“Outer marker 2575 ft. altimeter and
instruments checked.
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