What was found
EMERGENCY LIGHTS DID NOT PASS THE TEST DURING POWER ON CHECKLIST. IN THE ON POSITION ALL EMER LIGHTS ARE ON. IN THE ARM POSITION, ALL EMER LIGHTS ARE OFF WHEN THEY SHOULD BE ON UNTIL L BATT AND R BATT ARE TURNED ON. VERIFIED, WITH EMERGENCY LIGHT SWITCH IN 'ARM' LIGHTS DO NOT ILLUMINATE. LIGHTS DO ILLUMINATE WITH SWITCH IN 'ON' POSITION, WITH BOTH MAIN BATTERIES CONNECTED AND DISCONNECTED. RELAY KF126 MUST BE CLOSED FOR 'ARM' CIRCUIT TO OPERATE. NOTED RELAY SEEMS TO OPERATE WHEN POWER IS APPLIED TO AIRCRAFT. REMOVED PLACED IN-LINE WITH RELAY BREAKOUT BOX. GOOD POWER PRESENT AT COIL TERMINALS. CHECKED CONTACTS A1,A2, & A3 FOR CONTINUITY, OPERATION AND CONTINUITY IS GOOD. CHECKED 'ARM' OPERATION, LIGHTS NOW ILLUMINATE. REMOVED RELAY BREAKOUT BOX, INSTALLED RELAY, AND CHECKED 'ARM' OPERATION, LIGHTS NOW ILLUMINATE. SUSPECT RELAY WAS STUCK OPEN AND REMOVAL SHOOK IT LOOSE. SUBSEQUENT OPS CHECKS SHOW RELAY IS INTERMITTENT.