From: email@example.com (Keith Newburry) Date: 20 May 93 02:59:52 PDT Followups: 1
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One new MD90 feature which has not been discussed so far is the "barrel" section means of assembly. The MD80's main fuselage was assembled like a clam shell. the upper and lower fuselage were joined in an assembly tool and riveted together. (I was a supervisor on MD80 major assembly in Long Beach.) The clam shell approach was always berated because of the quality problems due to the complex assembly. While I was never in QA, I felt that dimensional assembly errors were compounded by the clam approach. The MD90 is assembled by the joining of cylindrical, non circular cross section barrels. The barrels are much easier to assemble and ,in general, have higher quality than the old approach. I believe MDC, if successful, will improve quality and cut assembly costs on the MD90 program as compared to the MD80. Keith Newburry - ex "Dougloid"!!!!