What and where is that? You obviously don't mean a flight data recorder.
As long as I'm asking, which years were you at Boeing?
Boeing's "Black Box" was facility where top secret work was done. Nothing was allowed out of there, not even any kind of papers whatsoever. You couldn't even bring out scratch paper or a grocery list. It's like the black hole where no light can escape, well nothing escapes the Black Box.
I worked there from mid 1985 'till late 1990.
My claim to fame, I'm the manufacturing engineer that built the electronic box complete with toggle switches and incandescent lights that said missile away when the most powerful nuclear missile in the world was deployed. Each box had five missiles it could launch. Only one out of every five launch sites was manned. I also worked on the Minuteman missile. Other projects included some efforts on the SRAM II cruise missile and the V-22 Osprey. That took up about half my work time at Boeing. The rest of my Boeing career was in Everett where I built jumbo jets, the 747 and the 767. I worked on a reproducibility team for improving quality, schedule and costs of the three jumbo jets at the time the 747, the 767 and the soon to be released 777.
I was moving up since I was a hard worker and getting results but I got tired of Seattle and wanted back in Portland. I tried to get on at Boeing's Troutdale facility but they didn't need anyone with my skill set. I wound up with a small consulting company in Portland but had to quit due to accelerating health issues.
Best and most satisfying job I ever had was as an electronics engineer at Tektronix. The negative part of that job was the low pay and like the other two big companies I've worked for there was some nasty politics and some real assholes. Still, in retrospect the Tek job was the best. Good think I left Tektronix for better pay, though because Tektronix eventually laid off about 90% of their workforce and kept less than 10%. Everyone who worked there eventually got really pissed off. Well, that's the risk you take with a big company.
Boeing paid the most but treated their engineers like dog shit. At Tektronix and at Emerson Electric I got treated like a professional although with less pay.