Is AD 2012-4746 a recurring Airworthiness Directive?

No — AD 2012-4746 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2012-4746 apply to?

AD 2012-4746 applies to Rotax. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2012-4746

one-time

AD 2012-4746 · 2012-03-01 · reciprocating engine

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

What this AD requires

We are adopting a new airworthiness directive (AD) for BRP- Powertrain GmbH & Co KG Rotax 912 S2, 912 S3, and 914 F2 reciprocating engines. This AD requires performing a one-time inspection of the oil system for leaks and a torque check of the oil pump attachment bolts, and if leaks are detected, performing a one-time inspection of the oil pump and engine valve train, on certain serial number (S/N) BRP- Powertrain GmbH & Co KG Rotax 912 S2, 912 S3, and 914 F2 reciprocating engines. This AD was prompted by the discovery that during engine production, some engines may not have had the oil pump attachment bolts torqued to specification. We are issuing this AD to prevent oil leaks, which could result in an in-flight engine shutdown and forced landing.

Which aircraft AD 2012-4746 applies to

MakesRotax

Whether AD 2012-4746 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 2012-4746 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.