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 SEVERAL CONNECTORS ON THE BACK OF JB2 RACK. MAINTENANCE REMOVED AND REPLACED CONNECTOR BACKSHELLS 9811-RJB2-P1A, 9811-RJB2-P1B, 9811-RJB2-P1C, 9811-RJB2-P1D, 9811-RJB2-P1E & 9811-RJB2-P1F IAW BOMBARDIER Q400 WM TR 20-019, SP 20-17-10 AND AMM 24-50-60-000-801. PART #'S M85049/38S13W (4EA) & 3CGA00AB4012S (2EA). AIRCRAFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.