What was found
DURING HEAVY MAINTENANCE, EMERGENCY LIGHT BATTERIES LOW BATTERY CAPACITY AT 10WL,14WL AND 15WL; REF LHT NR 5000798678-0010, INSTALLED EMERGENCY LIGHT BATTERY AT 10WL,14WL,15WL IAW AMM 33-51-38-400-001-A, REV 75. OPS CKS NORMAL. SUPPLEMENTAL INFORMATION TO FOLLOW.