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ASN Wikibase Occurrence # 261785
Last updated: 13 October 2021
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Time:20:48 UTC
Type:Silhouette image of generic B734 model; specific model in this crash may look slightly different
Boeing 737-476 (SF)
Owner/operator:ASL Airlines Belgium
Registration: OE-IAJ
MSN: 24440/2324
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: None
Category:Serious incident
Location:Porto-Francisco Sá Carneiro Airport (OPO/LPPR) -   Portugal
Phase: Take off
Departure airport:Porto-Francisco Sá Carneiro Airport (OPO/LPPR)
Destination airport:Liège Airport (LGG/EBLG)
Investigating agency: GPIAAF Portugal
ASL Airlines Belgium flight 4959, a Boeing 737-476(SF), was involved in a runway incursion incident when a follow me-vehicle was still on the active runway at Porto Airport during takeoff of the 737.

The controller gave permission to flight 4959 to take-off on runway 35 from intersection D. At that moment, the follow-me vehicle was still on the runway at the threshold of runway 17, heading south.
The operator of the follow-me noticed some strong lights on the runway centerline, in the area of taxiways C and D, lights that seemed to be in motion, and for that reason contacted the tower via radio, questioning if there were any aircraft lining-up on the runway. The controller confirmed an aircraft was rolling to take-off and requested the follow-me to immediate exit to the left edge of the runway. From the follow-me operator’s viewpoint and preliminary analysis of ground radar data, the distance between the aircraft and the vehicle was estimated at around 300 meters.
According to the description by the crew of flight 4959, after being authorised to take-off, they noticed white lights on the runway which, considering the night environment, became confused with the side runway lights. While during the climb, the crew questioned the controller about the vehicle on the runway and what happened, where the controller reported that it was a misunderstanding.



Photo of OE-IAJ courtesy

Liège (EBLG / LGG)
19 May 2018; (c) Kjell

Revision history:

17-May-2021 17:42 harro Added
17-May-2021 17:43 harro Updated [Location, Source]

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