https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgad.nsf...
and
https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgad.nsf...
and
https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgad.nsf...
and
https://rgl.faa.gov/Regulatory_and_Guidance_Library/rgad.nsf...
there's about ~20 total unique if I recall. Some supersede others.
Also it appears that in 2005 there were about 100 AD’s issued in response to flight 800 center tank issues.
Finally, I never stated that there was a coverup.
> During the course of its investigation, and in its final report, the NTSB issued 15 safety recommendations, mostly covering fuel tank and wiring-related issues. Among the recommendations was that significant consideration should be given to the development of modifications such as nitrogen-inerting systems for new airplane designs, and where feasible, for existing airplanes.