Is AD 2021-14612 a recurring Airworthiness Directive?

No — AD 2021-14612 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2021-14612 apply to?

AD 2021-14612 applies to Yaborã Indústria Aeronáutica S.A., Embraer S.A. — models ERJ 190-300, ERJ 190-400, ERJ 190. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2021-14612

one-time

AD 2021-14612 · 2021-07-09 · airframe

Airworthiness Directives; Yaborã Indústria Aeronáutica S.A. (Type Certificate Previously Held by Embraer S.A.) Airplanes

What this AD requires

The FAA is superseding Airworthiness Directive (AD) 2020-08- 11, which applied to all Yabor[atilde] Ind[uacute]stria Aeron[aacute]utica Model ERJ 190- 300 and ERJ 190-400 airplanes. AD 2020-08-11 required revising the existing airplane flight manual (AFM) procedures associated with messages of smoke in the electronic bays presented on the respective engine indication and crew alerting system (EICAS). This AD continues to require revising the existing AFM procedures, and adds requirements for a terminating modification of the electrical wiring of the mid- electronic bay and backup smoke detectors; as specified in an Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC) AD, which is incorporated by reference. This AD was prompted by a failure propagation test, which revealed that under certain conditions, the smoke detection system of the electrical bays erroneously indicated the presence of smoke via the respective EICAS messages. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2021-14612 applies to

MakesYaborã Indústria Aeronáutica S.A.Embraer S.A.

ModelsERJ 190-300, ERJ 190-400, ERJ 190

Type certificate previously held by Embraer S.A. Airplanes identified in Agência Nacional de Aviação Civil (ANAC) AD 2021-02-01, effective February 15, 2021, corrected February 23, 2021.

Whether AD 2021-14612 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 2021-14612 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.