On Monday, September 12, 2016 at 8:09:10 PM UTC-7, Bob Whelan wrote:

...I've been unable to find the "Materials Laboratory factual report." Pointer
help will be Seriously Appreciated!

The Docket Management System (DMS) has many good detail photos of broken aircraft. It is (or should be) every detail designer's go-to resource:

http://dms.ntsb.gov/pubdms/search/hi...docketID=58737

Thanks, Bob K.