Is my landlord required to fix this

[Nathan Brennan]

Hello, 

Recently, there was water dripping through my ceiling and we thought it was a broker pipe. It turned out to be a problem with the AC that cause the leak, but the repair man the landlord sent made a huge hole in my ceiling and my landlord is refusing to fix it saying that it is my responsibility. 

Any advice on this would be much appreciated.

Thank you, 

Nate