Somewhat off-topic, but there was a detailed historical article on the SRR competition in the Coast Guard Aviation Association's internal rag this March:
Coast Guard Aviation SRR Program
The 222C (rather than the 214)
was the Bell offer, while the S-76 was ultimately no-bid, due to a concern on Sikorsky's part as to whether it would be able to meet both the SRR delivery schedule and a predicted GOM demand spike (which ultimately only appeared years later).
The Bell lawsuit was ultimately decided on the grounds that the 'Buy American' aspect of the award related to the entire HH-65 system purchase, rather than just the aircraft (court findings
here and
here). For its part, the CG apparently quantified the HH-65's U.S. content at
60%.
Back to the original topic: would AW not have a greater chance of success were it to protest on the grounds of being able to offer an less expensive aircraft that actually met the Army's twin-engine requirement, e.g. the AW109E rather than the AW119Kx?
I/C