And the paperwork documenting the plane's construction was heavier than the plane.
Arthur Anderson was great at producing documents. Software, not so much. They were supposed to build telephony switch configuration software to deploy across NYNEX switches in New York. It was a distributed system with lots of parts that barely came together. They eventually fired Anderson's huge team and built a small one of independent consultants to rewrite the monster.
I initially got to develop a series of shell files to wrap around Anderson's cumbersome file management and build tools. I eventually automated the entire process forwards and backwards. If the business customer wanted some broken new feature yanked out of production, I had to be able to roll back both source and object files. We couldn't simply recompile old source files and expect the object file to be the same as what Anderson had abandoned in the build tree/production. Ah, the memories.