Amino acid replacement: N782S.
A frameshift mutation at amino acid 782.
CAGGAG
FlaccA/Y flies die at pupal stage when kept in stock over the FM7c balancer but crossing out the FlaccA/FM7c females to yw/Y (wild-type) males does yield some viable FlaccA/Y male flies which however display highly penetrant wing posture defects (held-out wings) and are almost completely flightless.
FlaccA, Sxl[+]/SxlfP7B0 has partially lethal | female | parental effect phenotype
Rescued by: Dp(1;3)DC354.