Photo: Getty ImagesTheFederal Aviation Administrationis speaking out about thecomputer outagethat grounded more than 1,200 domestic flights on Jan. 11.In astatementreleased on Thursday, Jan. 19, the FAA revealed that human error was the cause of the technical issue.“A preliminary FAA review of last week’s outage of the Notice to Air Missions (NOTAM) system determined that contract personnel unintentionally deleted files while working to correct synchronization between the live primary database and a backup database,” the FAA stated.They added that there was “no evidence of a cyber-attack” and that they are working on making the NOTAM system “more resilient.“On the day of the incident, the FAAreleased a statementthat the NOTAM system, which communicates essential information to flight personnel, had “failed” that morning, putting a “pause” on all domestic departures until 9 a.m. EST.They also issued updates viaTwitter.“The FAA is working to restore its Notice to Air Missions System,“the agency tweetedat 6:29 a.m. EST. “We are performing final validation checks and reloading the system now,” adding that “operations across the National Airspace System” were affected.Later that morning just before 7 a.m. EST, the FAA tweeted another update: “While some functions are beginning to come back online, National Airspace System operations remain limited.“Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.At 8:50 a.m. EST, the FAA announced that flights were beginning to operate again. “Normal air traffic operations are resuming gradually across the U.S. following an overnight outage to the Notice to Air Missions system that provides safety info to flight crews,” they said. “The ground stop has been lifted.”

Photo: Getty Images

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TheFederal Aviation Administrationis speaking out about thecomputer outagethat grounded more than 1,200 domestic flights on Jan. 11.In astatementreleased on Thursday, Jan. 19, the FAA revealed that human error was the cause of the technical issue.“A preliminary FAA review of last week’s outage of the Notice to Air Missions (NOTAM) system determined that contract personnel unintentionally deleted files while working to correct synchronization between the live primary database and a backup database,” the FAA stated.They added that there was “no evidence of a cyber-attack” and that they are working on making the NOTAM system “more resilient.“On the day of the incident, the FAAreleased a statementthat the NOTAM system, which communicates essential information to flight personnel, had “failed” that morning, putting a “pause” on all domestic departures until 9 a.m. EST.They also issued updates viaTwitter.“The FAA is working to restore its Notice to Air Missions System,“the agency tweetedat 6:29 a.m. EST. “We are performing final validation checks and reloading the system now,” adding that “operations across the National Airspace System” were affected.Later that morning just before 7 a.m. EST, the FAA tweeted another update: “While some functions are beginning to come back online, National Airspace System operations remain limited.“Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.At 8:50 a.m. EST, the FAA announced that flights were beginning to operate again. “Normal air traffic operations are resuming gradually across the U.S. following an overnight outage to the Notice to Air Missions system that provides safety info to flight crews,” they said. “The ground stop has been lifted.”

TheFederal Aviation Administrationis speaking out about thecomputer outagethat grounded more than 1,200 domestic flights on Jan. 11.

In astatementreleased on Thursday, Jan. 19, the FAA revealed that human error was the cause of the technical issue.

“A preliminary FAA review of last week’s outage of the Notice to Air Missions (NOTAM) system determined that contract personnel unintentionally deleted files while working to correct synchronization between the live primary database and a backup database,” the FAA stated.

They added that there was “no evidence of a cyber-attack” and that they are working on making the NOTAM system “more resilient.”

On the day of the incident, the FAAreleased a statementthat the NOTAM system, which communicates essential information to flight personnel, had “failed” that morning, putting a “pause” on all domestic departures until 9 a.m. EST.

They also issued updates viaTwitter.

“The FAA is working to restore its Notice to Air Missions System,“the agency tweetedat 6:29 a.m. EST. “We are performing final validation checks and reloading the system now,” adding that “operations across the National Airspace System” were affected.

Later that morning just before 7 a.m. EST, the FAA tweeted another update: “While some functions are beginning to come back online, National Airspace System operations remain limited.”

Never miss a story — sign up forPEOPLE’s free daily newsletterto stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories.

At 8:50 a.m. EST, the FAA announced that flights were beginning to operate again. “Normal air traffic operations are resuming gradually across the U.S. following an overnight outage to the Notice to Air Missions system that provides safety info to flight crews,” they said. “The ground stop has been lifted.”

source: people.com