Summary
This document proposes to revise an earlier proposed airworthiness directive (AD) that would have superseded Airworthiness Directive (AD) 86-22-09 and would have applied to all Univair Aircraft Corporation Models (ERCO) 415-C, (ERCO) 415-CD, (ERCO) 415-D, (ERCO) 415-E, (ERCO) 415-G, (Forney) F-1, and (Forney) F-1A airplanes with the gascolator connected to the side of the carburetor. The earlier NPRM would have required you to replace any aluminum fuel line nipple with a brass or steel fuel line nipple, inspect for the existence of double support tubes on the gascolator, and install these tubes if they do not exist. Since issuance of the NPRM, we have determined that we should: supersede AD 46-38-03 and incorporate the actions of that AD into the proposed AD, require a one-time inspection of the fuel line fittings, incorporate revised service information into the AD, and reduce the compliance time. Since these actions impose an additional burden over that proposed in the NPRM,we are reopening the comment period to allow the public the chance to comment on these additional actions.