What was found
DURING PREFLIGHT, THE VERTICAL "EXIT" SIGN ON THE FRONT OF THE LAV DID NOT COME ON WITH THE EMER LIGHT SWITCH IN ANY POSITION. IT DID FINALLY COME WITH THE INTERIOR POWER SWITCH, AND OFF WITH SAME. ALL OTHER EMERY LIGHTS SEEM TO FUNCTION PROPERLY. DISCREPANCY DUPLICATED. SWAPPED EMERGENCY EXIT INDICATOR WITH GOOD INDICATOR. DISCREPANCY REMAINS. SWAPPED INDICATORS TO ORIGNAL POSITION. SWAPPED NR 1 & 4 EMERGRNCY LIGHT BATTERY PACKS. DISCREPANCY REMAINS. SWAPPED BATTERY PACKS BACK TO ORIGINAL POSITIONS. INVESTIGATED INTO WIRING MANUAL & WIRING AT EXIT INDICATOR, FOUND CONNECTOR JF2002 (TOILET FLUSH SWITCH) & JF2065 (EMER HATCH EXIT INDICATOR) SWAPPED. SWAPPED CONNECTORS TO CORRECT POSITION AND EMERGENCY EXIT INDICATOR OPS CHECKS GOOD. WORK DONE IAW AMM 33-50-00.