Volotea B712 at Strasbourg on Dec 29th 2016, late landing clearance and localizer fluctuation on CATIII autoland

Last Update: January 12, 2022 / 16:19:14 GMT/Zulu time

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Incident Facts

Date of incident
Dec 29, 2016

Classification
Incident

Flight number
V7-2506

Aircraft Registration
EI-EXJ

Aircraft Type
Boeing 717-200

ICAO Type Designator
B712

A Volotea Boeing 717-200, registration EI-EXJ performing flight V7-2506 from Montpellier to Strasbourg (France), was on a CATIII approach to Strasbourg's runway 23 8nm before touchdown with autopilot and autothrust engaged.

An Hop! Embraer ERJ-145 on behalf of Air France, registration F-GUBC performing flight AF-1336 from Strasbourg (France) to Amsterdam (Netherlands), was cleared for immediate takeoff when the Boeing was 8nm out.

The air traffic controller noticed the Embraer became airborne when the Boeing was 1nm before touchdown and cleared the Boeing to land. The crew continued the approach, but noticed that the aircraft began to veer left off the runway center line while in the flare. The autopilot was disconnected and the crew completed a safe landing without further incident.

The French BEA rated the occurrence an incident, type "loss of separation between aircraft on takeoff and aircraft on landing, destabilization of trajectory on very short final in low visibility conditions", and opened an investigation.

On Jan 12th 2022 the BEA released their final report in French only concluding the probable causes of the incident were:

Contributing to the loss of separation between an aircraft taking off and an aircraft on landing and deviation from the path of the aircraft on landing was:

- The eagerness of the ERJ 145 crew to respect their time slot for
take-off. This eagerness led them:

+ To anticipate the announcement of his arrival at the hold point of the runway;
+ To accept immediate take-off, when he was not ready;
+ Not to inform the controller of the time required for take-off.

- Insufficient consideration of the speed of the Boeing 717 by the controller;

- The controller's decision to allow the situation to continue when the Boeing 717 crossed the SE runway lock. A radio exchange between the crew of the Boeing 717 and the controller at the passage of 4 NM could have allowed all the actors to have a better awareness of the situation;

- The lack of use of a specific phraseology relating to to LVP by the controller, which could have enabled him to better understand the position
of the ERJ 145;

- The lack of communication from the controller not wishing to disturb the crew during take-off;

- The underestimation by the controller and by the crew of the Boeing 717 of the risks associated with a disturbance of the localizer signal by an aircraft in the areas sensitive to ILS. This underestimation may have been encouraged by the will of the controller and crew of the Boeing 717 to avoid a low go-around height with an airplane taking off on the same runway, in low visibility conditions, which would have been a more complex situation for them to manage.

As the BEA have pledged to release an English report in due time, The Aviation Herald is going to summarize the English report as soon as it becomes available.
Incident Facts

Date of incident
Dec 29, 2016

Classification
Incident

Flight number
V7-2506

Aircraft Registration
EI-EXJ

Aircraft Type
Boeing 717-200

ICAO Type Designator
B712

This article is published under license from Avherald.com. © of text by Avherald.com.
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