Ah -- I shall do! Thanks Pete. I'd only updated in the last couple of weeks so it didn't occur to me there might be a new version!
Interesting that it could be connected to the LUA interpreter.
For information and completeness, here's the FSUIPC4.LOG:
********* FSUIPC4, Version 4.949h by Pete Dowson *********
fsx.exe version = 10.0.62615.0
Reading options from "D:\Steam\steamapps\common\FSX\Modules\FSUIPC4.ini"
Running inside FSX Steam Edition on Windows 8.0
Module base=5AEB0000
User Name="Simon Kelsey"
User Addr="simon.kelsey87@gmail.com"
FSUIPC4 Key is provided
WideFS7 Key is provided
125 System time = 06/05/2016 21:32:51
125 FLT UNC path = "\\DESKTOP\My Documents\Flight Simulator X - Steam Edition Files\"
141 ------ Module Version Check ------
141 acontain.dll: 10.0.62615.0
141 api.dll: 10.0.62615.0
141 controls.dll: 10.0.62615.0
141 fs-traffic.dll: 10.0.62615.0
141 G3D.dll: 10.0.62615.0
141 language.dll: 10.0.62615.0
141 sim1.dll: 10.0.62615.0
141 visualfx.dll: 10.0.62615.0
156 weather.dll: 10.0.62615.0
156 window.dll: 10.0.62615.0
156 ----------------------------------
672 Trying to connect to SimConnect Steam ...
719 FS UNC path = "\\DESKTOP\FSX2\"
1110 ---------------------- Joystick Device Scan -----------------------
1125 Product= Pro Flight Cessna Yoke
1125 Manufacturer= Saitek
1125 Vendor=06A3, Product=0BD3 (Version 1.22)
1125 Serial Number= RD011175
1125 Product= Logitech MOMO Racing
1141 Manufacturer= Logitech
1141 Vendor=046D, Product=CA03 (Version 0.25)
1141 Serial Number= Logitech
1141 Product= SideWinder Precision 2 Joystick
1156 Manufacturer= Microsoft
1156 Vendor=045E, Product=0038 (Version 1.8)
1156 Serial Number= Microsoft
1156 -------------------------------------------------------------------
1172 LogOptions=00000000 00000001
1172 -------------------------------------------------------------------
1172 ------ Setting the hooks and direct calls into the simulator ------
1172 --- CONTROLS timer memory location obtained ok
1172 --- SIM1 Frictions access gained
1172 --- FS Controls Table located ok
1172 --- Installed Mouse Macro hooks ok.
1172 --- Wind smoothing fix is fully installed
1172 --- All links checked okay
1172 -------------------------------------------------------------------
1172 SimConnect_Open succeeded: waiting to check version okay
1172 Trying to use SimConnect Steam
24156 Running in "Microsoft Flight Simulator X", Version: 10.0.62615.0 (SimConnect: 10.0.62615.0)
24156 Initialising SimConnect data requests now
24156 FSUIPC Menu entry added
24188 \\DESKTOP\FSX2\flights\other\FLTSIM.FLT
24188 \\DESKTOP\FSX2\SimObjects\Airplanes\Aircreation_582SL\Aircreation_582SL.air
29500 Weather Mode now = Theme
75360 \\DESKTOP\FSX2\SimObjects\Airplanes\Aerosoft Airbus A319 IAE\A319IAE.air
118750 System time = 06/05/2016 21:34:50, Simulator time = 21:35:18 (20:35Z)
118766 Aircraft="Airbus A319 British Airways BA-GDBCF"
282266 Starting everything now ...
282344 ASN active function link set
282344 Ready for ASN WX radar
316406 Sim stopped: average frame rate for last 36 secs = 19.3 fps
351016 Advanced Weather Interface Enabled
LUA plugins -- just DynamicFriction and a couple related to the Aerosoft Airbus. AirbusX_Thr1 & AirbusX_Thr2 (which enable control of the Airbus thrust levers via FSUIPC) and Transponder_ab (which sends the SB offset from the transponder switch). There is also an A2A transponder LUA but I presume that wouldn't have been loaded.
As to what was happening -- not very much! It was an Aerosoft connected flight deck flight, so don't know whether that could have had any bearing on it, but other than that wholly unremarkable: we'd been flying for almost an hour and were just in the cruise (FL280, just south of the Scottish border). Just about to start descent, but I don't think that had actually been initiated when the crash occurred.
Hope that's useful -- however, I will go and update forthwith!
Best,
Simon