What was found
EMERGENCY AISLE LIGHT ABOVE ROW 27 INOPERATIVE. REMOVED ROW 27 AISLE CEILING LIGHT ASSY, SWAPPED IN KNOWN GOOD EMERGENCY LIGHT ASSY IAW AMM 33-51-03-960-802, NO FIX. NO VOLTAGE FOUND AT CONNECTOR D14714 IAW WDM 33-51-13-4. SWAPPED IN A NEW POWER SUPPLY M1670, NO HELP. REINSTALLED ORIGINAL POWER SUPPLY IAW AMM 33-51-06-960-803. CHECKED CONNECTOR D14710, PIN B HAS GOOD GROUND, NO CONTINUITY FOUND ON PIN A BETWEEN CONNECTOR D10716 & D14710, WIRING CHECKS COMPLETED BTWN CONNECTOR D12004 (POWER SUPPLY M1671) TO AISLE LIGHT CONNECTOR D14714. IAW WDM 33-51-13-4 DEPINNED PIN 16 IN CONNECTOR D12004 & PIN A OF CONNECTOR D14714. FOUND WIRE W4148-0216-20 WITH A BREAK 10 INCHES FROM CONNECTOR D14714. REPINNED PIN 16 CONNECTOR D12004 AND RECONNECTED CONNECTOR TO POWER SUPPLY M1671 IAW SWPM 20-63-02 AND AMM 33-51-06-960-803. ACCOMPLISHED EMERGENCY LIGHTS OPS TEST, IAW AMM TASK 33-51-00-720-801. TEST PASSED. OPS CHECKED GOOD.