Wasn't the B707 outer wing reused by BOAC on their B707 that lost the outer wing following an engine fire during a run up?
No, the 707-436 that needed a wing section was G-APFP and it came from a TWA aircraft that had been W/O somewhere else.
Previously discussed here
http://www.pprune.org/aviation-histo...ow-1968-a.html see post #34
Richard