Heavy Lift Helicopter Program: Navy Should Address Cost and Schedule Risks, Report to the Subcommittee on Tactical Air and Land Forces, Committee on Armed Services, House of Representatives [open pdf - 4MB]
From the Highlights: "The Marine Corps is replacing its aging CH [cargo helicopter]-53E helicopters with the CH-53K heavy-lift helicopter. Designed as an evolution of the CH-53E, the CH-53K is intended to transport armored vehicles, equipment, and personnel from ships to deep inland locations. The CH-53K program office is overseen by the Department of the Navy. As we have previously reported, the program has experienced delayed milestones and cost increases from almost its inception in 2005, in part, due to technical issues. GAO [Government Accountability Office] was asked to review the CH-53K program. This report examines the program's (1) progress toward completing testing and demonstrating system experience, (2) schedule and cost performance to date, and (3) potential future challenges. GAO analyzed cost, schedule, performance, test, manufacturing, and planning documents; and interviewed officials from the CH-53K program office, other defense offices--such as the Defense Contract Management Agency--the testing community, and the prime contractor, Sikorsky."
Government Accountability Office: https://www.gao.gov/