While drilling one of the unpunched aft most stiffener holes in my elevator using the skin as a drill guide, I elongated a hole to approximately 7/64ths. I was planning on drilling it up to round using an approximately 7/64 drill bit and using a half size (7/64th) oops rivet (https://www.flyboyaccessories.com/product-p/3501.htm). I know this is an area with cracking issues and I am not thrilled about using an oops rivet here. Here are my questions.
1) Will a 7/64th oops rivet adequately secure the end of this stiffener? Similar to a standard -3 oops rivet, the head is diameter is slightly larger (0.008in greater) than a standard -3 rivet head.
2) Will I be able to get the shop head height flat enough not to rub the rivet on the stiffener above it?
2) Should I just use a -4 rivet despite the aesthetic issue? Same question on shop head height.
1) Will a 7/64th oops rivet adequately secure the end of this stiffener? Similar to a standard -3 oops rivet, the head is diameter is slightly larger (0.008in greater) than a standard -3 rivet head.
2) Will I be able to get the shop head height flat enough not to rub the rivet on the stiffener above it?
2) Should I just use a -4 rivet despite the aesthetic issue? Same question on shop head height.