SIKORSKY AIRCRAFT CORPORATION

Four detectors flagged Sikorsky Aircraft Corporation. Benford's law analysis found the leading-digit distribution of award amounts significantly deviates from expected frequencies, with digit 1 appearing 18% of the time versus the expected 30%, and digit 2 appearing 21% versus expected 18%. The modification growth detector identified contract SPE4A122G0005 with a growth ratio 69 times the NAICS peer average, indicating unusually aggressive modification spending. An isolation forest multivariate analysis scored the entity as a substantial outlier based on its feature profile. The sole-source concentration detector found that 89% of awards were sole-source, well above the peer median of 45%.

The Benford test produced a Kolmogorov-Smirnov statistic of 0.119 with p-value 1.34e-43 across 3,531 transactions. The modification growth z-score was 4.94 sigmas, with the flagged contract showing a 5,137-fold growth ratio against a peer average of 74. The isolation forest raw anomaly score was -0.758. Sole-source awards totaled 3,160 of 3,531 (z-score 1.14), compared to a peer median of 45% and standard deviation of 0.39.

Benford deviations can reflect legitimate business practices in specialized manufacturing rather than fraud. Sikorsky is a major defense contractor with $28 billion in lifetime obligations and 3,531 awards, primarily from a single agency, which explains concentration patterns. The modification growth signal warrants review but may reflect contract complexity or scope changes typical in aerospace. The peer group for this NAICS contains 328 entities of varying size, potentially limiting comparability for a prime contractor of Sikorsky's scale.