Originally Posted by
djmp
Switched back to UA105 I would say. That flight had been UA105 for a while, the detour into 8xx seems temporary?
Even after the merger, the international flights' numbers retained PMCO and PMUA numbering, as the crews needed to stay on "their" planes until the contracts were merged. While that's not an issue now, I recall hearing that the PMCO and PMUA 777s are still segregated due to different parts and maintenance schedules. I wonder if the assigned 772 (GE vs PW) changed at the same time as the numbering, if so, perhaps that's the reason.