An Air France Airbus A319-100, registration F-GRHO performing flight AF-1624 from Paris Charles de Gaulle (France) to Lisbon (Portugal), landed on Lisbon's runway 21 at 14:32L (13:32Z), slowed and vacated the runway to the left about 1600 meters past the (displaced) runway threshold and about 300 meters short of high speed turn off HS. The aircraft taxied to the apron with no further incident.
The aircraft departed for the return flight AF-1625 on schedule about 90 minutes after landing.
According to AIP Portugal as well as satellite images of 2019 the aircraft taxied across soft ground, only satellite images past March 2020 begin to show the construction of a new high speed turn off just where the aircraft vacated the runway.
At 16:49Z about 3:15 hours after landing Lisbon Airport released a new NOTAM:
A2480/20 NOTAMN
Q) LPPC/QMYXX/IV/NBO/A /000/999/3846N00908W005
A) LPPT B) 2008171649 C) 2008312359 EST
E) RWY 21 NEW RAPID EXIT TAXIWAY 1600 METERS FROM THR NOT AVAILABLE
YET. FIRST RAPID EXIT TAXIWAY AVAILABLE IS HS, 1910 METERS FROM THR.
REF AIP SUP 011/2020.
According to AIP Portugal there is no indication of any taxiway or taxiway under construction at that point. A Supplement 11/2020, still not showing the taxiway under construction but only telling about the construction of a new rapid turn off somewhere between Jan 2nd 2020 and end of August 2020, provides information about taxi routes and construction traffic etc. during the 4 construction phases.
Portugal's ANAC (Civil Aviation Authority) did not respond to an inquiry by The Aviation Herald so far.