Analysis of information sources in references of the Wikipedia article "Space Shuttle orbiter" in English language version.
Rockwell's Palmdale assembly facility was where all the individual parts, pieces and systems (many of which were built by various subcontractors) came together and were assembled and tested
Orbital maneuvering system/reaction control system low temperature reusable surface insulation tiles (LRSI) replaced with advanced flexible reusable surface insulation (AFRSI) consisting of a sewn composite quilted fabric blanket with same silica tile material sandwiched between outer and inner blanket.
Rockwell's Palmdale assembly facility was where all the individual parts, pieces and systems (many of which were built by various subcontractors) came together and were assembled and tested
In the design plans, we saw that the RCS would have big doors that opened outward. The problem was, if those doors failed to close, the orbiter would be lost as it was coming back through the atmosphere. I wrote a 'review item disposition' (RID) asking NASA to eliminate the outward-opening doors.