5500SHAC won't power up

Last night's storm lightning struck nearby and simultaneously lost my SHAC ability to power up and remote override turned on.
My surveillance cameras show that as the lightning strike flashed all 4 of my buildings cbus channels went to 100%.
After shutting everything down, including closing electric windows and roller doors manually, I have found zero evidence of any damage anywhere, only unit to be out of ordinary is the fact that the SHAC power led will not light.
I have tested the 24v power supply and all is good (23.9v) as it also powers other IOT connected devices in the data cabinet.
I isolated 1 C-Bus leg that was causing the override "ON" situation and now none of my cbus units show cbus network led.

 

OK, since it won't power up I decided to pull her down and look inside for damage.

My Cbus SHAC has dead, suspect it was during a lightning storm but other IOT devices attached to my 24v power supply are still working fine.
After opening up the case to trace the power supply on the board I have found what looks likely to be the issue.
L2 (L2 is on the negative 24v power supply rail) in the picture looks to be damaged, anyone know what this is? Any electrical guru or board designer have any input on how to test this surface mount component?
Surely there is a chance that replacing 1 component and she will power up again, at a cost of $1500aud surely it's worth fixing or at least trying.
If I can identify the component I can desolder and replace it, nothing to lose.

 

Looks to be a ferrite bead filter between ground rail and 24v negative power supply rail