What was found
WITH THE EMERGENCY EXIT LIGHT SWITCH ON - THE FOLLOWING INTERIOR LIGHTS ARE INOP: "EXIT" LIGHTS OVER L2 AND R2 DOOR, OVERHEAD CENTER AISLE LIGHTS BETWEEEN THE AFT LAVS, THE SINGLE OVERHEAD LIGHT NEAR ROW 33, "EXIT" LIGHTS OVER R1 AND L1 DOORS. GROUNDED - YES. REMOVED & REPLACED EMERGENCY LIGHT BATTERY PACK, OPS TEST CHECKS GOOD IAW B737MAX AMM 33-51-06 & 33-51-00.