Original sentence: As of June, 2007 Bell had received 189 firm orders and 40 commitments.Bell abandoned the 427 airframe and went to its MAPL (Modular Affordable Product Line) concept airframe that was still in conceptual development at the time.Bell's original concept for the 429 was a stretched model 427 (unveiled as the Bell 427s3i at the 2004 HAI helicopter show), but this still did not provide what Bell and its customer advisers were looking for.The Bell 427 was originally intended to address this market, but the 427's small cabin size would not adequately accommodate a patient litter, and the systems did not support instrument flight rules (IFR) certification
Edited sentence: Bell's original concept was a stretched model 427 (unveiled as the Bell 427s3i at the 2004 HAI helicopter show), but this still did not provide what Bell and its customer advisors were looking for.In a bold move, Bell abandoned the 427 airframe and  went to the MAPL (Modular Affordable Product Line) concept airframe that was still in conceptual development at the time.The Bell 427 was originally intended to address this market, but the 427's small cabin size would not adequately accommodate a patient litter, and the systems did not support instrument flight rules (IFR) certification, so the helicopter's sales were weak