[jhghjmhnbgv]

The airbus style big block integration actually worked quite well - engines from RR, undercarriage from airbus and wings from Mitsubishi all worked well.

The problem was that they eg. farmed out the avionics to mega corp, who farmed out the hardware to company A and software to B. Company B farmed out bits to company C and company D. Nobody realised that company D was a single contractor shop until they were late which went all the way up the chain.

There was an article on here at the time, Boeing literally couldn't find out the name of the company doing a vital part of the avionics software.