What was found
INTERPHONE SERVICE BREAKER N P11 C23631 FOUND POPPED AFTER POWER SURGE/DROPPED OFFLINE. FOUND BOTH P11 C23631 INTERPHONE SERVICE BREAKER B24 POPPED AND P320 PANEL INTPH- GRD C13 CIRCUIT BREAKER POPPED. NO FAULTS LOGGED IN MATT EXSITING FAULTS OR EXTEND MAINTENACE FAULTS. NO OTHER CB'S FOUND POPPED. INSPECTED AMU E1-4 SHELF HAS A STRONG ELCTRICAL SMOKE SMELL. SUSPECTED AMU INTERNALLY FRIED DURING POWER SERGE REF WRI 24-00/2117. PULLED AMU INSPECTED RACK/INSTALLTION NO DEFECTS NOTED. VERIFIED THAT AMU BAD, WIRING IS GOOD. AWAITING FOR AMU FOR REPAIR. REMOVED AND REPLACED AMU PER AMM 23-51-04-4. OPS CHECKED GOOD.