What was found
DURING EMERGENCY LIGHT TEST BATTERY PACKS M1671, M1672, M1673, M1674 AND M1675 FAILED FUNCTIONAL TEST. REPLACED BATTERY PACKS AND TESTS OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING EMERGENCY LIGHT TEST BATTERY PACKS M1671, M1672, M1673, M1674 AND M1675 FAILED FUNCTIONAL TEST. REPLACED BATTERY PACKS AND TESTS OK.