This is a mistake that could have had serious consequences.
On July 20, 2020, two planes narrowly missed colliding on one of the runways at Paris-Charles de Gaulle airport.
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This is explained by a report from the Bureau of Investigation and Analysis for Civil Aviation Safety (BAE), published Monday and spotted by BFMTV. He comes back to
"this serious incident"
which involved a Boeing 787 from United Airlines and an Airbus A320 operated by Easyjet. In question, the controller of the airport who
"committed a slip"
.
On July 20, the crew of the Boeing 787 coming from Newark airport in the United States obtained clearance to land on runway 09R (right) when it should normally land on runway 09L (left) .
The commander listens to the tower and performs a maneuver to land on the runway indicated by the controller.
Except that at the same time, the controller gave the authorization to the Airbus A320 to line up on the same 09R runway to prepare for takeoff.
"Potential collision"
And, while the Airbus has
"started taxiing for the alignment"
and is carrying out a final check on runway 09R, the captain sees the Boeing approaching him
"at a height of 300 ft (300 feet, that is to say approximately 92 meters) and 1300 m from the threshold ”
, specifies the BEA report.
"Faced with the imminence of a potential collision, the crew of the Airbus A320 asked the aircraft on final to go around"
, and, for his part, the captain braked
"while he was already engaged on the track of about ten meters ”
.
At the same time, the Boeing 787 receives an identical order from the controller. The Boeing 787 narrowly flies over the other plane and after a loop it will land on runway 09L.
"His tongue forked"
In its report, the BAE gives possible explanations, including a position within the controller's north tower which did not allow her to have
"direct visual contact on the thresholds of runways 09"
and
"a screen used for the control in position ”
which seemed to have failed and could not be turned on.
Quoted in the report,
"she thinks that 'her tongue has turned out' because she was focused on runway 09R"
where an Air France Boeing 787 had just landed, which two planes had to cross and from which two others planes had to take off.
She adds
"that it regularly happens to the controllers to slip up".
The report also states that
"According to her, the first contributing factor to this event is the lack of practice caused by the health situation linked to the COVID-19 pandemic, which has led to a reduction in the automatisms necessary for her work"
.
Following this event, Paris-Charles de Gaulle airport established a
“new operational instruction” “specifying the roles and responsibilities of the controller”
.
For its part, Eurocontrol suggests that in this type of situation where a doubt remains,
"the crew asks the controller to reconfirm the clearance, rather than repeat what they think they have heard"
.