ASN Wikibase Occurrence # 230972
This information is added by users of ASN. Neither ASN nor the Flight Safety Foundation are responsible for the completeness or correctness of this information.
If you feel this information is incomplete or incorrect, you can submit corrected information.
| Date: | Thursday 14 November 2019 |
| Time: | 22:35 LT |
| Type: |  Boeing 737-8D6 (WL) |
| Owner/operator: | Air Algerie |
| Registration: | 7T-VKR |
| MSN: | 60754/6214 |
| Year of manufacture: | 2016 |
| Fatalities: | Fatalities: 0 / Occupants: 95 |
| Aircraft damage: | None |
| Category: | Serious incident |
| Location: | Lyon Saint-Exupéry Airport (LYS/LFLL) -
 France
|
| Phase: | Take off |
| Nature: | Passenger - Scheduled |
| Departure airport: | Lyon Saint-Exupéry Airfield (LYS/LFLL) |
| Annaba-Les Salines Airport (AAE/DABB) | |
| Investigating agency: | BEA |
| Confidence Rating: |  Accident investigation report completed and information captured |
In LVP conditions and at night, the ground controller at Lyon Saint-Exupéry Airport cleared a snow-plough to enter runway 35L to clear snow at the intersection with TWY A4 without coordinating with the LOC controller. At the same time, the LOC controller cleared flight DAH1157, a Boeing 737-800, to take off from runway 35L. The two controllers saw the conflict. The LOC controller ordered the aeroplane taking off to perform an acceleration-stop. The aeroplane came to a halt around 1200 m before the intersection with TWY A4.
Causes of the serious incident:
The runway incursion was related to an erroneous runway clearance resulting from a lack of coordination between the ground and LOC controllers and the maintenance on the groud frequency of vehicles authorised to enter.
Contributing factors to the conflicting clearance and maintenance on an inadequate frequency were:
- A high workload in an unusual context where roles within the tower were sometimes unclear.
- Re-opening of the inner runway after snow clearance when snow clearance of taxiways and junctions with the runway required snow clearance vehicles to enter the runway.
- Practices lacking a clear framework on the use of frequencies for vehicles during temporary runway closures.
- A configuration of stop bars that was incompatible with the snow clearing routes followed by the vehicles.
The runway incursion, if it can be considered a failure as such, is above all symptomatic of the confusion and disorganisation generated by the management of the snowy episode.
The following contributed to the confusion and disorganisation:
- A snow plan defined in an overly formal manner and partly disconnected from operational realities.
- Inaccurate measurements of runway conditions leading to a high workload and difficulties in the snow clearing strategy to be implemented.
- Regulation and suspension principles that are difficult to apply by those directly involved in traffic management and snow clearance.
Accident investigation:
 |
|
Sources:
https://www.bea.aero/en/investigation-reports/notified-events/detail/event/incident-grave-du-boeing-737-immatricule-7t-vkr-exploite-par-air-algerie-survenu-le-14112019-a-lyo/
https://www.flightradar24.com/data/aircraft/7t-vkr#22d866f3
History of this aircraft
Other occurrences involving this aircraft
| 5 September 2022 | 7T-VKR | Air Algérie | 0 | Lyon Saint-Exupéry Airfield (LYS/LFLL) | |
non |
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 29-Nov-2019 16:30 | harro | Added |
| 07-Sep-2021 19:59 | harro | Updated [Time, Total occupants, Location, Narrative, Accident report] |
Corrections or additions? ... Edit this accident description
The Aviation Safety Network is an exclusive service provided by:
Quick Links:
| ASN Home | Send Correction / Feedback |
| FSF Home | Disclaimer | Copyright |
| Contact Us | Privacy Policy |
| Press / Media |
CONNECT WITH US:
©2024 Flight Safety Foundation