As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HEARD NOISE AT CRUISE, ASSURED IT TO BE SPEED TAPE OVER GROUND POWER PLUG . SUSPICION CONFIRMED ON POST FLIGHT WALK AROUND. REMOVED FROM SERVICE. REMOVED & REAPPLIED SPEED TAPE OVER EXTERNAL POWER ACCESS DOOR AS REQUIRED. CDL CLEARED ON LOGPAGE 918622 BY REMOVING SPEED TAPE & INSTALLED PANEL 125AL REF E175 AMM 06-41-00-800-801-A. REVERSED MTX PROCEDURES FOR CDL 53-03-01. THIS ACTION CLEARS DEFECT 918622. RETURNED TO SERVICE.