As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AIRCRAFT WAS IN HEAVY CHECK MAINTENANCE FOUND THE EMERGENCY ABSORPTION SYSTEM PLUG DAMAGED ON SEAT 4A. MAINTENANCE REMOVED AND REPLACED THE EMERGENCY ABSORPTION SYSTEM PLUG IAW EMB 170 C AND D ZODIAC CMM 25-22-51. THE AIRCRAFT IS OUT OF SERVICE IN HEAVY CHECK.