As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EMERGENCY ESCAPE TEST 1 SLIDE L/R AND TEST 2 SPOILER L/R WILL NOT TEST. . REPLACED LT & RT OVERWING SLIDE BATTERIES AND CHARGERS IAW AMM 25-65. IAW AMM 25-65. FOUND REPLACED BATTERIES TO BE FAULTY ALSO. R & R BATTERIES AGAIN. CHECKED NORMAL.