I guess this flight didn't really want to go to Italy.
So here's the original issue from AVH, but looking further, same flight (not the same plane that diverted to Sacramento), the next day, then diverted to Edmonton.
Incident: United B772 near Sacramento on Aug 13th 2024, engine trouble
By Simon Hradecky, created Wednesday, Aug 14th 2024 17:28Z, last updated Thursday, Aug 15th 2024 14:19Z
A United Boeing 777-200, registration N204UA performing flight UA-507 from San Francisco,CA (USA) to Rome Fiumicino (Italy) with 148 passengers and 14 crew, was enroute at FL300 about 70nm northeast of Sacramento,CA (USA) when the crew reported engine (PW4090) trouble and decided to divert to Sacramento where the aircraft landed safely on runway 17L about 35 minutes later.
The FAA reported: "United Airlines Flight 507 landed safely at Sacramento International Airport in California around 5:50 p.m. local time on Tuesday, August 13, after the crew reported a possible engine issue. The Boeing 777-200 departed San Francisco International Airport and was headed to Rome, Italy. The FAA will investigate."
On Aug 15th 2024 passengers reported the crew announced their left hand engine was shut down due to overheating.
The aircraft is still on the ground in Sacramento about 38 hours after landing.
https://flightaware.com/live/flight/UAL507/history/20240813/2340Z/KSFO/LIRFThursday
15-Aug-2024
04:30PM PDTSan Francisco Int'l - SFO
01:20PM CEST (+1)Leonardo da Vinci Int'l (Fiumicino Int'l) - FCO
B772
Cancelled
Thursday
15-Aug-2024
01:37AM MDTEdmonton Int'l - YEG
03:26AM PDTSan Francisco Int'l - SFO
B772
2h 49m
Thursday
15-Aug-2024
12:02AM PDTSan Francisco Int'l - SFO
06:39PM CESTLeonardo da Vinci Int'l (Fiumicino Int'l) - FCO
B772
Cancelled
Wednesday
14-Aug-2024
04:49PM PDTSan Francisco Int'l - SFO
12:15AM MDT (+1)Edmonton Int'l - YEG
B772
6h 26m
Wednesday
14-Aug-2024
04:49PM PDTSan Francisco Int'l - SFO
Leonardo da Vinci Int'l (Fiumicino Int'l) - FCO
B772
Diverted
Tuesday
13-Aug-2024
09:35PM PDTSacramento Intl - SMF
10:36PM PDTSan Francisco Int'l - SFO
B39M
1h 01m
Tuesday
13-Aug-2024
04:26PM PDTSan Francisco Int'l - SFO
05:55PM PDTSacramento Intl - SMF
B772
1h 29m
Tuesday
13-Aug-2024
04:26PM PDTSan Francisco Int'l - SFO
Leonardo da Vinci Int'l (Fiumicino Int'l) - FCO
B772
Diverted
Tuesday
