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 LEVEL 2 CORROSION WAS FOUND ON THE RIGHT CENTER CABIN SEAT RAIL BETWEEN STATIONS -18.25 TO 104.0. MAINTENANCE REMOVED & REPLACED THE RIGHT CENTER SEAT RAIL IAW BOMBARDIER Q400 SRM 51-40-10, 51-42-05 & 51-40-07. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.