The TWA NTSB report (unrevised) is at
http://www.scribd.com/doc/2463395/Ab...w-York-July-30
or
http://www.airdisaster.com/reports/ntsb/AAR93-04.pdf
and the unrevised summary at
http://www.ntsb.gov/ntsb/brief.asp?e...11X15125&key=1
I note this is recorded as a nonfatal accident.
Do you know where the revised probable cause might be found?