Originally Posted by kudzu
As far as I know, these are the LH fare classes with NO accrual in US DM program:
T, L, E, I, N, O, R, X
From the beta USAirways website
Star Mileage Accrual Chart:
Star Partner Lufthansa
500 minimum miles per segment or actual miles flown B, G, H, K, M, Q, S, V, W, Y
150% Accrual Rate C, D, Z, A, F