Airworthiness Directive 80-19-09 R1
one-timeAD 80-19-09 R1 · 1980-01-01 · airframe
Airworthiness Directives; INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 80-19-09 R1 GATES LEARJET: Amendment 39-3913 as amended by Amendm
Which aircraft AD 80-19-09 R1 applies to
MakesInformation Contact Supplementary Information Regulatory Text 80-19-09 R1 Gates Learjet Amendment 39-3913 As Amended By Amendment 39-3998 Applies To Following
Models23, 24, 25, 28, 29, 35, 36
Whether AD 80-19-09 R1 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:
Method of compliance — The specific action taken (inspected, replaced, modified) and to what revision.
Date — When the work was done.
Aircraft time — Total time in service / tach at compliance — how recurring next-due is computed.
Signature & certificate — The A&P/IA who returned it to service, with certificate number.
Is AD 80-19-09 R1 complied with on your aircraft?
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.