The unlucky 13 flight attendants who got canned by United after expressing fears over working on a plane emblazoned with graffiti that read "BYE BYE" have gotten their jobs back, after a battle that's been waged since 2014.

It all began at San Francisco International Airport on July 14, 2014, when 13 of the 15 the attendants of United Flight 869 to Hong Kong were unnerved by a threatening message (pictured above) scrawled in the grime below the airplane's tail engine. As we reported last year, the graffiti "said 'Bye Bye' with a couple of creepy faces and what looks like an image of something falling into water."

When the flight attendants were shown the photo of the "menacing" threat that one of the pilots had seen scrawled below the tail, they refused to fly until United provided another plane, saying that a thorough safety sweep needed to occur with all the passengers taken off. Management arrived, assured them the aircraft was safe to fly, and gave them a direct order. They refused to comply.

The flight ended up getting canceled with 300 people aboard due to "crew availability," and the plane was taken out of service for at at least two days. The crew was dismissed as of October, 2014. In January 2015, they filed a whistle-blower complaint with the U.S. Occupational Safety and Health Administration

And on Tuesday, the Chron reports, the fired flight attendants and United reached "a confidential settlement that included reinstatement for the employees." Other terms, including if money exchanged hands, was not disclosed.

United, which previously said that "All of FAA’s and United’s own safety procedures were followed, including a comprehensive safety sweep prior to boarding, and the pilots, mechanics and safety leaders deemed the aircraft entirely safe to fly," now says that “The safety of our employees and customers is paramount. We respect the right of our employees to raise concerns in good faith about the safety or security of our operations, and encourage them to do so."

According to the OSHA parent the Department of Labor, they were "not involved in the settlement and has not brought charges against United."

The DoL's spokesperson is similarly hands-off, saying that “If the flight crew opted to settle out of court with United, that’s between them and their lawyers."

Previously: United Airlines Crew Fired For Refusing To Fly On Aircraft With Threat Scrawled On It