1. INTRODUCTION The altimeter setting procedures in use generally conform to those contained in ICAO Doc 8168, Vol. I, Part 6 and are given in full below. Differences are shown in quotation marks.
 
The transition altitude is given on the instrument approach charts.
 
QNH reports and temperature information for use in determining adequate terrain clearance are available from the air traffic services units. QNH values are given in Hectopascal.

2.  BASIC ALTIMETER SETTING PROCEDURES 2.1  General 2.1.1  A transition altitude is specified for Kigali International Airport and it is higher than 450 m above the aerodrome.
 
2.1.2  Vertical positioning of aircraft when at or below the transition altitude is expressed in terms of altitude, whereas such positioning at or above the transition level is expressed in terms of flight levels. While passing through the transition layer, vertical positioning is expressed in terms of altitude when descending and in terms of flight levels when ascending.
 
2.1.3  Flight level zero is located at the atmospheric pressure level of 1013.2 hPa (29.92 in). Consecutive flight levels are separated by a pressure interval corresponding to 500 ft (152.4 m) in the standard atmosphere.
 
Note : Examples of the relationship between flight levels and altimeter indications are given in the following table, the metric equivalents being approximate:
   
2.2  Take-off and Climb 2.2.1  A QNH altimeter setting is made available to aircraft in taxi clearance prior to take-off.
 
2.2.2  Vertical positioning of aircraft in climb is expressed in terms of altitudes until reaching the transition altitude above which vertical positioning is expressed in terms of flight levels.  
2.3  Vertical Separation En-route 2.3.1  Vertical separation during en-route flight shall be expressed in terms of flight levels at all times during an IFR flight and at night.
 
2.3.2  IFR flights, and VFR flights above 10,000 ft (3050 m), when in level cruising flight, shall be flown at such flight levels, corresponding to the magnetic tracks shown in the following table, so as to provide the required terrain clearance:
   
2.4  Approach and Landing 2.4.1  A QNH altimeter setting is made available in approach clearance and in clearance to enter the aerodrome circuit.
 
2.4.2  The air traffic services at Kigali International Airport may also provide on request, the QFE (and the QNE in geopotential meters).
 
2.4.3  Vertical positioning of aircraft during approach is controlled by reference to flight levels until reaching the transition level below which vertical positioning is controlled by reference to altitudes.  
2.5  Missed Approach 2.5.1  The relevant portions of 2.1.2, 2.2 and 2.4 shall be applied in the event of a missed approach.
 
2.5.2  The related procedures are put on the respective approach charts. 

3.  DESCRIPTION OF ALTIMETER SETTING REGION The altimeter setting is identical all over the Kigali FIR.
 
 

4.  PROCEDURES APPLICABLE TO OPERATORS (INCLUDING PILOT) 4.1  Flight Planning The levels at which a flight is to be conducted shall be specified in a flight plan:
 
a) In terms of flight levels if the flight is to be conducted at or above the transition level; and
b) In terms of altitudes if the flight is to be conducted in the vicinity of an aerodrome and at or below the transition altitude.
 
The flight level and levels selected for a flight should ensure adequate terrain clearance at all points along the route flown, should meet air traffic services requirements, and should comply with the semi-circular rule.
 
Note: 1 . Short flights in the vicinity of an aerodrome may often be conducted only at altitudes below the transition altitude. Filed flight plan is not required for flights within aerodrome circuit.
 
Note: 2 . Flight levels specified in a plan by number and in terms of feet or meters as is case with altitudes.
 

5.  TABLE OF CRUISING LEVELS Cruising levels to be maintained when so required are as follows: