Repairing loose metal shutter on 3" disks ?

[reno]

Hi,

I've just bought an original game and the metal shutter is disengaged from the spring on one side and now spinning freely. I'm lucky I noticed before it possibly ruined my drive head !

Trying to decide if I should return the game... How difficult is this to repair ? Does it require cracking the shell open ? 

Thanks.

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[Bryce]

Hi Reno,
    you'll definitely need to open the shell, because you're biggest problem is "Where did the spring go?". It could be inside scratching deep cuts into the disc.

Bryce.