What was found
AIRCRAFT WAS GROUNDED: STATUS MESSAGE FOR ELECTRICAL STANDBY SYSTEM, FLIGHT DECLARED EMERGENCY AND RETURNED TO FIELD. REPLACED DIODE WITH NEW IAW WDM 24-09-26 AND ARINC 629 COUPLER (AALA202107228308) IAW AMM 23-91-01, OPS CHECK GOOD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: STATUS MESSAGE FOR ELECTRICAL STANDBY SYSTEM, FLIGHT DECLARED EMERGENCY AND RETURNED TO FIELD. REPLACED DIODE WITH NEW IAW WDM 24-09-26 AND ARINC 629 COUPLER (AALA202107228308) IAW AMM 23-91-01, OPS CHECK GOOD.