As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM - AIR BLEED 1 FAULT ON TAXI OUT. RESET ENG 1 BLEED PER MOC. ENG 1BLEED FUNCTION NORMAL. PERFORMED BITE OF BUC 1. NO FAULTS EXISTING. SUSPECT FAULT COINCIDED WITH PACK FAULT, REF LOG 5385779 AND 0863736. OK FOR SER.