That would be N127UA
UA does its -400 heavy MX in HKG. She had flown in on August 6. for scheduled heavy MX and WiFi dome installation.
She had just completed her first test flight before the accident and was being prepared for return to service....was to operate HKG-SFO in a day, with N120UA going in for MX.
So after 2 months of work and a test flight. The destroy the vertical stab and significantly damage the horizontal stab.