(Another source states that the aircraft assembled in April were N5519, N5520, N5523, N5524, N5529 and N5531; N5518, N5521, N5522 and N5525-28 and N5530 were to be the spares.)
(Podle jiného zdroje byly již v dubnu sestaveny stroje N5519, N5520, N5523, N5524, N5529 a N5531; N5518, N5521, N5522, N5525-5528 a N5530 měly být náhradní.)