Originally Posted by Infinite1K

Pretty wild adventure on UA35 from San Francisco to Osaka on February 2nd, where comms between cockpit and ATC/United stopped working and they had to resort to ACARS and then CPDLC text messages. Four hours and fuel dump later they returned back to SFO.

Full accounting here:

https://twitter.com/i/web/status/1753626352723664984

The last bit about catering is pretty amusing.

Originally Posted by (dispatch to cockpit)

IF YOU HAVE A FREE MOMENT CAN YOU CONFIRM 1ST SERVICE HAS BEEN INITIATED AND OR COMPLETED? A/C SWAP IN SFO TO CONTINUE. HOPING TO AVOID HAVING CATERING PROVIDE FULL SERVICE ON RECOVERY LEG.