Is AD 2013-18528 a recurring Airworthiness Directive?

No — AD 2013-18528 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2013-18528 apply to?

AD 2013-18528 applies to Rotax. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2013-18528

one-time

AD 2013-18528 · 2013-08-12 · reciprocating engine

Airworthiness Directives; BRP-Powertrain GmbH & Co KG Rotax Reciprocating Engines

What this AD requires

We are superseding an existing airworthiness directive (AD) for all BRP-Powertrain GmbH & Co KG Rotax model 912 F2; 912 F3; 912 F4; 912 S2; 912 S3; 912 S4; 914 F2; 914 F3; and 914 F4 reciprocating engines. That AD required a one-time visual inspection for excessive oil or carbon deposits on the cylinder No. 2 and No. 3 (\2/3\) spark plug center and grounding electrodes, and if found, replacement of the cylinder head before further flight. This AD was prompted by a report that additional engine cylinder heads are likely to be affected. We are issuing this AD to prevent excessive oil consumption, which could result in an in-flight engine shutdown, forced landing, and damage to the airplane.

Which aircraft AD 2013-18528 applies to

MakesRotax

Whether AD 2013-18528 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 2013-18528 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.