Editing Space Shuttle Endeavour (section)

=== Early milestones ===
{| class="wikitable"
! style="background:#efefef;" | Date
! style="background:#efefef;" | Milestone<ref>{{Cite web |title=Shuttle Orbiter ''Endeavour'' (OV-105) |url=http://science.ksc.nasa.gov/shuttle/resources/orbiters/endeavour.html |url-status=dead |archive-url=https://web.archive.org/web/20110501130312/http://science.ksc.nasa.gov/shuttle/resources/orbiters/endeavour.html |archive-date=May 1, 2011 |access-date=November 28, 2012 |publisher=NASA/KSC}}</ref>
|-
| 1982 February 15
| Start structural assembly of crew module (built as structural spare alongside ''Discovery'' and ''Atlantis'')<ref>{{Cite web |last=Marconi |first=Elaine |title=NASA – Space Shuttle Overview: Endeavour (OV-105) |url=http://www.nasa.gov/centers/kennedy/shuttleoperations/orbiters/endeavour-info.html |website=www.nasa.gov |access-date=March 12, 2008 |archive-date=February 22, 2020 |archive-url=https://web.archive.org/web/20200222025959/https://www.nasa.gov/centers/kennedy/shuttleoperations/orbiters/endeavour-info.html |url-status=dead }}</ref>
|-
| 1987 July 31
| Contract award to [[Rockwell International]]
|-
| 1987 August 1
| Start of Final Assembly
|-
| 1987 September 28
| Start structural assembly of aft fuselage
|-
| 1990 July 6
| Completed Final Assembly
|-
| 1991 April 25
| Rollout from Plant 42, Palmdale, California
|-
| 1991 May 7
| Delivery to Kennedy Space Center
|-
| 1992 April 6
| Flight Readiness Firing (FRF)
|-
| 1992 May 7
| First flight ([[STS-49]])
|}