Personally, I'd take the case off and solder a female "J" connector with short (2") wires in place of the bent/missing pins with a knot in the wire so it hangs up in the plug hole won't yank the board. Then I'd subject that puppy to multiple range and function tests before I put a model up with it.

But then I'm parsimonious.

An aileron failure is a hard thing to recover from; depending on the model. I'd surely relegate that receiver thereafter to a "rough and tumble" model without great personal attachment. I don't think even I would bother trying to program around a missing channel 1. Conceivably you could "fool" the receiver int thinking it was a dual servo mix but with a "Y" to the second servo channel. Or slave some other channel to the missing Ch 1.