Re: Actually less about the Amosposion I think.
I do indeed, NASA's Sep. 1 CCtCap report (https://oig.nasa.gov/audits/reports/FY16/IG-16-028.pdf)
Some cited statements...
"SpaceX officials attributed the delays to capsule design challenges, specifically switching from a design that used a ground-based landing to a water-based landing design in the first year after contract award. This resulted in significant challenges, including complications with vendor components and the effectiveness of the integrated landing system designed to ensure parachutes work and the capsule does not take on excessive water after landing in the ocean. In addition, SpaceX stated it had underestimated the number of interfaces to the weldment and radial bulkheads, which also resulted in design delays."
"NASA Program officials anticipate SpaceX will encounter additional delays on the path to certification. For example, in January 2015, the tunnel that provides a passageway for astronauts and cargo between the Dragon and the ISS was reported to have cracked during the heat treatment phase of the manufacturing process. As a result, SpaceX delayed qualification testing by approximately one year to better align the tests as SpaceX moves toward certification."
"SpaceX has also experienced ongoing issues with stress fractures in turbopumps that must be resolved prior to flight."
"Additionally, SpaceX has not yet completed parachute system level testing which may reveal issues that would require redesign that could further delay the test flights."
And the final killer, with no mention of AMOS-6...
"Accordingly, we anticipate additional schedule slippage and do not expect certified flights by SpaceX earlier than late 2018."
With regards to the spacesuit issues, the only thing I can (quickly) find a mention of is in the following WSL article (http://www.wsj.com/articles/spacex-has-delayed-first-manned-nasa-launch-to-2018-from-2017-1481581294 - paywalled).
"At SpaceX, over the years those challenges have ranged from problems with space suits to onboard life-support systems to leaks involving unmanned Dragon capsules that returned and splashed down, as planned, in water."
My information on that might be somewhat out of date however, it was quite a while ago ^.^
HTH