As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 4964...WHILE BOARDING PAX GOT MAIN BAT CHARGER, APU BAT CHARGER, CARGO BOTTLE AND APU BOTTLE LOW INDICATIONS. UPON INSPECTION FOUND SEVERAL BLEED LEAKS. RESECURED CLAMPS AND LINES AND NO FURTHER LEAKS NOTED. OPS CHECKED MAIN AND APU CHARGERS IAW 24-32-03. OPS CHECKS GOOD. REFER TO AFDL 526613-3 FOR WORK PERFORMED ON APU BOTTLE LOW MSG.