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 THE RIGHT I/B SEAT TRACK HAS LEVEL 2 CORROSION BETWEEN STATIONS 116.0 & 236.0. MAINTENANCE REMOVED AND REPLACED THE RIGHT I/B SEAT TRACK IAW BOMBARDIER Q400 SRM 51-40-07, 51-42-05 & AMM 51-25-31. AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.