Quote Originally Posted by martymayes View Post
(i) Separation or disassembly of a crankcase or crankshaft of a reciprocating engine equipped with an integral supercharger.

(ii) Separation or disassembly of a crankcase or crankshaft of a reciprocating engine equipped with other than spur-type propeller reduction gearing

Integral superchargers and planetary reductions are radial engine components not applicable to the common opposed engines. There is nothing to prohibit an A&P from splitting the case on a direct drive opposed engine, never has been.
That clears up any question of that error.