DL 5776 (Compass) LAX -> San Diego Declared Emergency.

[infosvc]

Trying to find radio call so my wife actually believes me.  Flight was today, Nov 8, 2019 departure at 09:50 PST.  I Found a call from San Diego Approach but I'm trying to find the actual call and I'm hoping to figure out what caused the emergency call. KSAN-SOCAL-App-Dep-East-Nov-08-2019-1800Z.mp3 at 9:13.

I'm new to this and can't figure out how to find what channel had the original call.  Any help would be much appreciated.

Thanks!