What was found
AIRCRAFT WAS GROUNDED: PILOT REPORTS UPON LEVEL OFF AT FL300, ECAM WARNING OF "ELEC" DC BUS 1 FAULT ILLUMINATE UPON CHEKING C/B P-4 WAS POPPED. MAINTENANCE REMOVED AND REPLACED C/B FIN (14WV) IAW AWM 31-54-22. AND OPS CHECK OK.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AIRCRAFT WAS GROUNDED: PILOT REPORTS UPON LEVEL OFF AT FL300, ECAM WARNING OF "ELEC" DC BUS 1 FAULT ILLUMINATE UPON CHEKING C/B P-4 WAS POPPED. MAINTENANCE REMOVED AND REPLACED C/B FIN (14WV) IAW AWM 31-54-22. AND OPS CHECK OK.