Airworthiness Directive 48-19-03
one-timeAirworthiness Directives; DOUGLAS DC-6
Which aircraft AD 48-19-03 applies to
Applies to DC-6 Serial Numbers 42854 through 42896; 43000 through 43024; 43035 through 43052; 43055 through 43058; 43061 through 43064; and 43105 through [range cut off in source]. Requires reworking the trim tab mechanism using P/N 2357983, locknuts P/N AN316-5R, and washer P/N 1357982; reassemble and install on aircraft. Douglas Service Bulletin DC-6 No. 123 covers the same subject.
Whether AD 48-19-03 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.