What was found
CABIN EMERG LIGHT: DURING PREFLIGHT THE EMERGENCY LIGHTS SWITCH WAS SELECTED TO THE ARM POSITION: THE RELEVANT LIGHTS ILLUMINATED FOR A FEW SECONDS AND THEN WENT OFF. AFTER RUNNING THE APU FOR 1 HOUR THE TEST WAS REPEATED RESORTING IN THE SAME OUTCOME // SIGNOFF// ACCOMPLISHED TC-FLT-33-1001 (CESSNA 680 / 680A / 700 / EMBRAER EMERGENCY LIGHTING POWER SUPPLY BATTERY EXERCISE PROCEDURE IAW THE LATEST REVISION POSTED ON COMPLY 365. NO FAULTS FOUND. PERFORMED OPS-CHECK AND OPS-CHECK GOOD. CONTACTED MCC AND VERIFIED NORMAL OPERATION. MCC IS OK WITH SIGNOFF. WORK PERFORMED IRW CE-680A AMM 33-50-00. 21MAY2022.