Airworthiness Directive 70-17-04
one-timeAirworthiness Directives; installing flexible fuel lines between the engine pump and the carburetor and in the fuel pressure system in accordance with Parts
Which aircraft AD 70-17-04 applies to
Install flexible fuel lines between the engine pump and carburetor and in the fuel pressure system, per Parts 2 and 3 of SOCATA Service Bulletin No. 56, dated December 1968, or later SGAC-approved issue.
Whether AD 70-17-04 actually applies to your aircraft (by serial and installed parts) and whether it’s already complied with comes from that aircraft’s records.
How AD compliance is recorded
A valid compliance record (14 CFR 43.9) states:
Tailplate reads a tail number’s logbooks and matches every applicable AD — including this one — to its compliance evidence, with recurring next-due dates computed.
Look up a tail number →Applicability is derived from the FAA directive corpus and is advisory, not a legal airworthiness determination. Compliance is established only from an aircraft’s actual records.