The FlyBase record for P{lacW}G0202b (FBti0012899) has a GenBank accession for its flanking sequence, but does not have a sequence location. The flanking sequence was determined by 5’ inverse PCR. The alignment to the release 6 reference genomic sequence maps the insertion to  X:13718263 (+). The insertion site of G0220b is only 22 bp upstream of the annotated transcription start site of the Nadsyn gene. I would therefore suggest that Nadsyn be added as an Affected Gene in the FlyBase record for G0220b.