I'm too impatient for going through warranty when it's a part needing reattached. Like @Craignor said, that Loctite Gel stuff works very well. I use it often and have repaired a lot of models with it. I use it on loose handrails and small plastic details. Sometimes you gotta get creative and make a jig to hold everything in place while the glue sets. Some other times you gotta just hold it still so get comfy haha
Post some pics if you get it reattached!
