What was found
BACK-UP BATTERY FAILED FUNCTIONAL CHECK. R & R BACK-UP BATTERY. OPS CHECKED GOOD ACFT RELEASED AND RETURNED TO SERVICE.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
BACK-UP BATTERY FAILED FUNCTIONAL CHECK. R & R BACK-UP BATTERY. OPS CHECKED GOOD ACFT RELEASED AND RETURNED TO SERVICE.