Primary Sauce: FAA
https://www.fly.faa.gov/adv/adv_otherdis.jsp?advn=13&adv_date=01112023&facId=DCC&title=NOTAM+SYSTEM+EQUIPMENT+OUTAGE_FYI&titleDate=01/11/23
https://www.fly.faa.gov/adv/advADB.jsp
Primary Sauce: FAA
https://www.fly.faa.gov/adv/adv_otherdis.jsp?advn=13&adv_date=01112023&facId=DCC&title=NOTAM+SYSTEM+EQUIPMENT+OUTAGE_FYI&titleDate=01/11/23
https://www.fly.faa.gov/adv/advADB.jsp
ATCSCC ADVZY 039 BOS/ZBW 01/11/2023 CDM GROUND STOP
MESSAGE:
CTL ELEMENT: BOS
ELEMENT TYPE: APT
ADL TIME: 1348Z
GROUND STOP PERIOD: 11/1338Z - 11/1500Z
FLT INCL: CARRIER DAL ONLY
DEP FACILITIES INCLUDED: (Manual) ZAU ZTL ZDC ZNY ZJX ZOB ZBW ZID ZMP
CYHZ CYOW CYUL CYYZ CYTZ CYQB
PREVIOUS TOTAL, MAXIMUM, AVERAGE DELAYS: 0 / 0 / 0
NEW TOTAL, MAXIMUM, AVERAGE DELAYS: 713 / 78 / 51
PROBABILITY OF EXTENSION: MEDIUM
IMPACTING CONDITION: OTHER / OTHER
COMMENTS: AIRLINE REQUEST
EFFECTIVE TIME:
111352 - 111600
SIGNATURE:
23/01/11 13:52
Note: time shown (13:52) is ET + 5hrs
https://www.fly.faa.gov/adv/advADB.jsp
Groundstop Cancelled
The Most Recent ATCSCC Advisory
ATCSCC ADVZY 040 DCC 01/11/2023 ADVISORY 28 NATIONWIDE STOP CANCELLED
MESSAGE:
EVENT TIME: 11/1400 - 11/1430
NATIONWIDE ALL GROUND STOP CANCELLATION
DESTINATION AIRPORT: ALL
RELEASED FACILITIES: ALL
RMK:SEE OIS PAGE FOR CURRENT STOPS/INITIATIVES
EFFECTIVE TIME:
111407 - 111500
SIGNATURE:
23/01/11 14:07
Note: time displayed is ET + 5hrs
https://www.fly.faa.gov/adv/advADB.jsp
They did different versions of the cover, depending on country/market.
https://www.youtube.com/watch?v=JWW2-krrvoU