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● Application of high altitude temperature corrections.
In theory, this correction applies to the air column between ground and aircraft. When flying above mountain areas, the use of this correction gives a conservative margin. Special care should be exercised, in case of depressurization failure or engine failure, to avoid flying closer to the obstacles.
E3 TAKEOFF CHARTS

E3.1 Acceleration altitude
The Acceleration altitude specified on the Airbus takeoff chart is the (minimum) Indicated Altitude at which the pilot must perform the acceleration altitude, in case of an engine-out during takeoff. It ensures obstacle clearance.
The specified acceleration altitude is the highest of all the acceleration altitudes, after having applied temperature correction. It takes into account the lowest temperature of the table. In other words, it considers the maximum ISA deviation of the table.

Consequently, provided OAT is greater than the lowest temperature indicated on the
chart, it is not necessary to adjust the published minimum acceleration height for the effect of low temperature.
On the contrary, when OAT is lower than the lowest temperature of the takeoff chart, the published acceleration altitude has to be increased by the value found in the FCOM’s Low Altitude Temperature Correction Table.
Remark: Low Altitude Temperature Correction Table has to be entered with .ISA. Replace .ISA by the difference between the OAT and the lowest temperature of the table.
Let’s illustrate this by an example.
Step 1:
Consider the following takeoff chart (You shall zoom the figure below to display it).
:———————————:————————————-:————————————————————:————————:————————————— :
: A340313 - JAA  :  CFM56-5C4 engines : Airport name  :  15R  : 16.0.1   07-DEC-99  : 
:  :  :  : AA313B02 *V 9  : 
: QNH   1013.25 HPA  :  :  : 
: Air cond. AC OFF  : Elevation 1000 FT  TORA   3000 M  :  : DRY  : 
: Anti-icing AI OFF  : Isa temp  13 C  TODA  3000 M  :  : CONF 2  : 
:  : rwy slope 0.00%   ASDA   3000 M  :  1 obstacle  : NO DERATE  : 
:  :  :  : 
:  : Do not use for operations  :  : 

:————————————————————————:————————————————————————————-:————————————— : : OAT : TAILWIND : WIND : HEADWIND : HEADWIND : :C: -10 KT : 0 KT : 10 KT : 20 KT : :———-:——————————————-:——————————————-:——————————————-:——————————————-————
　
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