Airworthiness Directive 98-13-10
recurringAirworthiness Directives; Cessna Aircraft Company Model 182S Airplanes
What this AD requires
This amendment adopts a new airworthiness directive (AD) that applies to all Cessna Aircraft Company (Cessna) Model 182S airplanes. This AD requires repetitively inspecting all engine exhaust muffler end plates (four total) for cracks and replacing any muffler where an end plate is found cracked. The AD also requires fabricating and installing a placard that specifies immediately inspecting all engine exhaust muffler end plates any time the engine backfires upon start-up. This AD is the result of incidents where cracks were found in an engine exhaust muffler end plate on several of the affected airplanes. These cracks were caused by high stresses imposed on the attachment of the exhaust at the area of the firewall. The actions specified by this AD are intended to detect and correct damage to the engine exhaust mufflers caused by such high stress and cracking, which could result in exhaust gases entering the airplane cabin with consequent crew and passenger injury.
Which aircraft AD 98-13-10 applies to
Requires a cockpit placard, AFM limitation insert, and repetitive inspection/replacement of engine exhaust muffler end plates (four total, at the firewall) per Cessna SB No. SB98-78-02, dated June 6, 1998, to prevent exhaust gas entry into the cabin. Affected component (exhaust muffler) is engine-adjacent but the AD's applicability paragraph frames it as airplane-level; specific Cessna model designation not present in this excerpt.
Whether AD 98-13-10 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:
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.