What was found
DURING SERVICE CHECK, FOUND R1 DOOR AND FLIGHT DECK DOOR OVERHEAD EMERGENCY LIGHTS SIGN (QTY:2) INOPERATIVE. RELEASED FOR SERVICE PER MEL : 33-51-01-01 CATEGORY : D EXPIRATION : 12AUG23 "MEL 33-51-01-01: INTERIOR EMERGENCY LIGHTS - INOP."MEL: 33-51-01-01 SUSPECTED ALL LAMPS FUSED. NPA AT MAD STATION (LAMPS) REMOVED AND REPLACED THE UNSERVICEABLE BULBS IAW AMM 33-51-01-2. FOUND THE RH BATT PACK NOT PROPERLY SEATED. REINSTALLED THE RH BATT PACK CORRECTLY IAW AMM 33-51-07-2. PERFORMED AN OPS TEST OF THE EMERGENCY EXIT LIGHTS WITH THE TEST SWITCH AND WITH THE CONTROL SWITCH IAW AMM 33-51-00-5. OPS TESTS PASSED. A/C OK TO CONTINUE.