Is AD 98-23-02 a recurring Airworthiness Directive?

No — AD 98-23-02 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-23-02 apply to?

AD 98-23-02 applies to Cessna — models 180, 180A, 180B, 180C, 180D, 180E, 180F, 180G. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-23-02

one-time

Official AD 98-23-02 · FR doc 98-29363 · 1998-11-04 · airframe

Airworthiness Directives; Cessna Aircraft Company 180 and 185 Series Airplanes

What this AD requires

This amendment supersedes Airworthiness Directive (AD) 80-10- 01, which applies to certain Cessna Aircraft Company (Cessna) 180 and 185 series airplanes that have either Airglas Engineering Company, Inc., (AECI) Model LW3600-180 (single position) or Model LW3600-180A (two position) fixed penetration wheel skis installed in accordance with Supplemental Type Certificate (STC) SA213AL. AD 80-10-01 requires modifying the ski bungee assemblies, safety cables, and check cables, and their attachments to the airplane and the skis; limiting the maximum airspeed to 160 knots with skis installed; and installing an airspeed limitation placard. This AD is the result of field reports of incidents occurring on the affected airplanes that were in compliance with AD 80-10-01, and the fact that Cessna Model 180K airplanes were inadvertently left out of the existing AD. This AD retains the actions required by AD 80-10-01; requires re-marking the airspeed indicator to display the reduced airspeed limits and placing a certain airplane flight manual (AFM) supplement in the cockpit; and adds Cessna Model 180K airplanes to the Applicability section of the AD. The actions specified by this AD are intended to prevent one or both wheel skis from rotating into a nose-down position during flight, which could result in loss of control of the airplane and/or possible airplane damage during flight or landing operations.

Which aircraft AD 98-23-02 applies to

MakesCessna

Models180, 180A, 180B, 180C, 180D, 180E, 180F, 180G, 180H, 180J, 180K, 185, 185A, 185B, 185C, 185D, 185E, A185E, A185F

Part-conditional — LW3600-180, LW3600-180A.

All serial numbers of the listed 180/185 series models, but only those equipped with Airglas Engineering Company, Inc. (AECI) Model LW3600-180 (single position) or Model LW3600-180A (two position) fixed penetration wheel skis installed per STC SA213AL.

Whether AD 98-23-02 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 98-23-02 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.