Is AD 98-24-22 a recurring Airworthiness Directive?

No — AD 98-24-22 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-24-22 apply to?

AD 98-24-22 applies to Agusta — models A109. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-24-22

one-time

Official AD 98-24-22 · FR doc 98-31331 · 1998-11-24 · airframe

Airworthiness Directives; Agusta A109C Helicopters

What this AD requires

This amendment adopts a new airworthiness directive (AD) that is applicable to Agusta A109C helicopters. This action requires, within the next 5 hours time-in-service (TIS), replacing the tail rotor blade grip assemblies (grip assemblies) with modified airworthy grip assemblies. This amendment is prompted by cracks that were found on the grip assemblies during maintenance inspections. This condition, if not corrected, could result in separation of a tail rotor blade and subsequent loss of control of the helicopter.

Which aircraft AD 98-24-22 applies to

MakesAgusta

ModelsA109

Part-conditional — 109-8131-29-101, 109-8131-02-129, 109-8132-01-107, 109-8132-01-1, 109-8131-07-1, 109-8131-08-1, 109-8131-06-1, 109-0131-06-7.

Tail rotor hub/blade/grip assembly; install airworthy grip assembly P/N 109-8131-29-101 (or rotor grip/bushing P/N 109-8131-02-129) and tail rotor blades P/N 109-8132-01-107; establishes new component retirement lives (blade 3000 hr, retention strap assembly 2000 hr, strap pin/plug 5000 hr, hub assembly 3600 hr, retention bolt 5000 hr, grip assembly 3000 hr). Per Agusta Bollettino Tecnico 109-100.

Whether AD 98-24-22 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 98-24-22 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 →Read the full directive (Federal Register)

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.