Is AD 98-1860 a recurring Airworthiness Directive?

No — AD 98-1860 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 98-1860 apply to?

AD 98-1860 applies to Cessna — models 182S, 182. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 98-1860

one-time

AD 98-1860 · 1998-01-27 · airframe

Airworthiness Directives; Cessna Aircraft Company Model 182S Airplanes

What this AD requires

This document publishes in the Federal Register an amendment adopting Airworthiness Directive (AD) 98-01-14, which was sent previously to all known U.S. owners and operators of Cessna Aircraft Company (Cessna) Model 182S airplanes. This AD requires replacing the left and right Aeroquip engine exhaust mufflers (P/N 71379-1254017-8) with an FAA-approved equivalent part. Reports of carbon monoxide gas entering the cabin heating system and the cabin of the Cessna Model 182S airplanes prompted this action. This condition, if not corrected, could result in passenger and pilot injury with consequent loss of control of the airplane.

Which aircraft AD 98-1860 applies to

MakesCessna

Models182S, 182

Serial-conditional — narrows to serials 18280050–18280060, 18280062–18280062, 18280063–18280063, 18280066–18280066, 18280067–18280070, 18280083–18280083.

Part-conditional — 71379-1254017-8.

Prevents carbon monoxide entry into cabin; paragraph (a) requires immediate exhaust muffler replacement (FAA-approved equivalent part) specifically for Cessna Model 182S airplanes with the listed serial numbers, referencing Cessna SB No. SB97-78-01, dated December 23, 1997. Paragraph (b) additionally prohibits installing Aeroquip muffler P/N 71379-1254017-8 on any Cessna Model 182S airplane (broader than the listed serials), so the serial ranges above reflect only the immediate-action subset named in the text, not necessarily the full AD applicability scope.

Whether AD 98-1860 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 98-1860 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.