47-33-04 BEECH: (Was Service Note 2 of AD-757-2.) Applies to C18S Aircraft.
Compliance required prior to October 15, 1947, and each 100 hours of operation thereafter.
Inspect gaskets between fuel tank liquidometer units and tanks for fuel leakage. If leakage is evident, replace gasket with Armstrong No. 710 gasket, Beech P/N 189631, without use of sealing compound. (Installation of 189631 gasket eliminates necessity for continued inspections.)