Is AD 2019-09-02 a recurring Airworthiness Directive?

No — AD 2019-09-02 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2019-09-02 apply to?

AD 2019-09-02 applies to Bell — models 212, 412, 412CF, 412EP. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2019-09-02

one-time

Official AD 2019-09-02 · FR doc 2019-10310 · 2019-05-20 · airframe

Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

What this AD requires

We are superseding Airworthiness Directive (AD) 2018-17-01 for Bell Model 212, 412, 412CF, and 412EP helicopters. AD 2018-17-01 required replacing certain oil and fuel check valves and prohibited installing these valves on any helicopter. This AD retains the requirements of AD 2018-17-01 but expands those requirements for all model helicopters. This AD was prompted by the discovery that we omitted a helicopter model from one of the required actions. We are issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2019-09-02 applies to

MakesBell

Models212, 412, 412CF, 412EP

Part-conditional — 209-062-520-001, 209-062-607-001.

Applies only if an engine oil check valve P/N 209-062-520-001 or fuel check valve P/N 209-062-607-001 manufactured by Circor Aerospace, marked 'Circle Seal', with a manufacturing date code from 10/11 (October 2011) through 03/15 (March 2015), is installed; excludes check valves marked 'TQL' next to the date code.

Whether AD 2019-09-02 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 2019-09-02 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.