A holding pattern is nothing more than a big oval formed in a race-track shape that is designed to keep an aircraft in a specified space for a specified amount of time. A holding pattern can be published on either airway charts or terminal charts or can be unpublished, and specified by the air traffic controller. Watch the video (from 1’49 »):
Here is an audio/video file with transcript about how the numbers must be pronounced according to the ICAO (International Civilian Aviation Organization) standard. This is how aircrew members, and air traffic controllers should transmit the numbers.
CAUTION – There is not any exception for FL 100, and FL 200 according to the ICAO DOC 9432 Radiotelephony Manual, page 19, chapter 2.4.2, as it is pronounced « FLIGHT LEVEL ONE-ZERO-ZERO », and « FLIGHT LEVEL TWO-ZERO-ZERO ».
However, « Flight level one hundred » follows the French DGAC and the British CAA patterns.
Click on this video:
Watch and listen carefully to Mr. Learmount’s point of view which has been deemed to be of considerable interest as far as the 2009 AF 447 crash is concerned. Please notice that there are interesting acronyms such as GIGO (Garbage in – Garbage out), and LOC – if it is well known as « Loss of Consciousness » – means « Loss of Control » here. Special thanks to Xavier Cotton (Passion pour l’aviation webmaster) who has found out this video:
Regarding the 2009 Air France Rio-Paris crash, and according to the BEA investigation, it seemed to show a lack of training. But it now seems to be more complicated- it turns up that the elements of the report on the investigation were actually incomplete. This scoop – according to this France24 video – comes from the French paper La Tribune. Several elements would have been taken out of this report, and more importantly an element about a malfunctioning stall alarm: