"A follow-up question: I believe these would be N fares. Do they qualify for elite tier points with AA, please?"

Mileage earning eligability on BA in economy class.

Residency : US, Canada, Mexico or Australia
B, G, H, K, L, M, N, V, W, Y, S, S2, S3

Residency : UK or Japan
B, Y

Residency : Rest of world
B, Y, H, K

So if your AA account is registered in US/CA/MEX or AU, then, yes, the N class fares are valid for miles. If you account is registered elsewhere, then no.

Dave