As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
REJECTED TAKEOFF AT 30 KTS DUE TO LOSS OF ALL ELECT POWER EXCEPT EMERGENCY POWER. MULTIPLE PROBLEMS RELATED TO RAIN DRIPPING INTO AVIONICS BAY. SEE ALSO WRI 25-70-1318 - AFTER REJECTED TO. TAXIED BACK TO BLOCKS & INSPECTED AVIONICS BAY. FOUND SIGNIFICANT AMOUNT WATER IN AVIONICS BAY. NR 2 IDG PREVISOULY ON MEL PRIOR TO THIS EVENT. (A/C LOADED IN HEAVY RAIN. ACFT DRAINED OUT. R&R NR 2 GCU AND ALL ASSOCIATED SYSTEMS OPERATE NORMAL ON ACFT. MM 24-41-11-4 AND 24-41-00-0.