The to thrust -218B engine version shares a 98% commonality with the existing engine, with changes designed to reduce NOx, improve durability, and reduce noise levels by 3 dB. The 218B could be certified in early to mid-1996. The new engine, dubbed the "8000", was to feature a new fan of increased diameter (by 1.7 in), extended exhaust cone, a larger LP compressor, a new annular burner, and a new LP turbine and mixer. The initial thrust rating would be around . A launch decision on the new engine was expected by mid-1994, but never occurred. The MD-80 Advanced was also to offer a new flight deck instrumentation package and a completely new passenger compartment design. These changes would be available by retrofit to existing MD-80s, and was forecast to enter service by July 1993.