Is AD 2023-19-04 a recurring Airworthiness Directive?

No — AD 2023-19-04 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2023-19-04 apply to?

AD 2023-19-04 applies to Aircraft Industries — models L-420, L 410 UVP-E20, L 410 UVP-E20 CARGO, L 410. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2023-19-04

one-time

Official AD 2023-19-04 · FR doc 2023-20554 · 2023-09-22 · airframe

Airworthiness Directives; Aircraft Industries, a.s. Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for all Aircraft Industries, a.s. Model L-420, L 410 UVP-E20, and L 410 UVP-E20 CARGO airplanes. This AD was prompted by reports of the pressure plates within the main landing gear (MLG) wheel brake unit malfunctioning. This AD requires replacing certain MLG wheel brake units with serviceable parts and prohibits installing an affected part on any airplane. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2023-19-04 applies to

MakesAircraft Industries

ModelsL-420, L 410 UVP-E20, L 410 UVP-E20 CARGO, L 410

Applies to all serial numbers.

Whether AD 2023-19-04 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 2023-19-04 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.