Congrats to you BlackWidow and all of your colleagues at BA OPS. Obviously showing professionalism today.
I'm just very interested in what you actually did.
Here's my take from reading here and elsewhere, and do correct me where wrong.
BA876 to DME was cancelled. G-EUUJ (A319) was reconfigured to an all Y seating for 150 pax and flown to Uralsk. It left LHR at 1143 and arrived at 2003 (does it take that long to get there? Did it stop in Bucharest or somewhere else?) It left URA 2152 and arrived 2255. [I've assumed something wrong there]
BA874 arrived in DME at 2036 flown by G-BZHA (767). I am assuming it flew to URA. It arrived in URA. It left URA. It arrived in DME as BA9203 at 2309 local (2.5 hours from arrival in DME to arrival in DME - I feel a wrong assumption there). It then did what it was supposed to do, BA875 and left at 0112. [Just seems to get worse doesn' it]
BA886 left for OTP and arrived at 1501. It probably did BA9258 left for URA at 1630. BA887 magically operates 3 hours late at 1849. [Did something happen there?]
BA010 arrived in URA with 354 passengers (98.3%) at 0656 local. It left and is expected in 23 hours later at around 0540 (ba.com).
A good guess from someone who isn't in logisitics yeah?