What was found
ORD - FLT 4034 - REMOVED AND REPLACED BATTERY PACK AT 10W1. PERFORMED SYSTEM OPS CHECK AND RETURNED AIRCRAFT TO SERVICE. (X)
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
ORD - FLT 4034 - REMOVED AND REPLACED BATTERY PACK AT 10W1. PERFORMED SYSTEM OPS CHECK AND RETURNED AIRCRAFT TO SERVICE. (X)