As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS IN FOR HEAVY CHECK, MAINTENANCE REPORTED A CRACK ON THE FORWARD EBAY RACK AND TCAS/FCS BATTERY TRAY. MAINTENANCE REMOVED AND REPLACED THE FORWARD E-RACK STRUCTURE IAW EO J/C R170EO-53-12-0000. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.