Airworthiness Directive 81-23-01 R1
one-timeAD 81-23-01 R1 · 1981-01-01 · airframe
Airworthiness Directives; two nuts to produce circular magnetization. Demagnetize each bolt and nut after the above inspection. 6. Replace each rusted, pitt
Which aircraft AD 81-23-01 R1 applies to
MakesTwo Nuts To Produce Circular Magnetization Demagnetize Each Bolt And Nut After Above Inspection 6 Replace Each Rusted Pitted And Or Cracked Nut And Bolt With A New Part Number As Follows A If New Preload Indicating Washer Assembly Is To Be Used In Accordance With Paragraph A)9 Below Nut P N Is 72789-1414 72789M-1414 Fn22-1414 Or Ld-34 Ld-46 Ld-119 And Lj-1 Through Lj-67 And Xx Is 32 For All Other
Applies to all models of the make above.
Serial-conditional — narrows to serials LJ-1–LJ-67.
Whether AD 81-23-01 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 81-23-01 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.