What was found
B777-33-3-7019 DR L4 EMER LT BATT CHARGER M33407 TEST FAIL TRANSFER REF NON - ROUTINE WO.2572027 DR L4 M33407 EMER LT BATT CHARGER REPLACED AND TESTED NORMAL IAW AMM 33-51-06
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
B777-33-3-7019 DR L4 EMER LT BATT CHARGER M33407 TEST FAIL TRANSFER REF NON - ROUTINE WO.2572027 DR L4 M33407 EMER LT BATT CHARGER REPLACED AND TESTED NORMAL IAW AMM 33-51-06