Air France Flight 447
- Grace Lwanga
- Sep 29, 2016
- 1 min read
On 1 June 2009, Airbus A330 of Air France crashed into the Atlantic Ocean at night, killing all 228 passengers, aircrew and cabin crew aboard the aircraft. It was on a scheduled flight from Rio de Janeiro, Brazil to Paris, France.
The investigation report showed that the aircraft crashed after the Air Speed Indicator reading error – likely due to the aircraft's pitot tubes being obstructed by ice crystals. The pilot got confused and ultimately caused the aircraft to ditch into the sea.

PITOT TUBE ▲
ASI ▲
The following AIR SPEED INDICATOR (ASI) sample question is taken from the text book called
“Meteorology for Navigation (Instruments)” by Grace Lwanga, 1984. This book gives the theory of aircraft Dead Reckon (DR) pressure instruments including the ASI (which affected the Air France Jet Airliner).
How to open the file:
Click the Link (given at the end of this list)
Download the zip file
Click Right (on the downloaded zip file)
Click “extract all….” menu item
Open the Word file called “Sample Question AF447 ft.dotx”
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