Is AD 2019-03-21 a recurring Airworthiness Directive?

Yes — AD 2019-03-21 requires a repetitive inspection every 72 months. Next-due depends on the aircraft's time in service.

Airworthiness Directive 2019-03-21

Q: Which aircraft does AD 2019-03-21 apply to?

AD 2019-03-21 applies to Embraer S.A. — models ERJ 190-100 STD, ERJ 190-100 LR, ERJ 190-100 IGW, ERJ 190-200 STD, ERJ 190-200 LR, ERJ 190-200 IGW, ERJ 190. Serial/part conditions may narrow it to specific aircraft.

recurring

Official AD 2019-03-21 · FR doc 2019-03127 · 2019-02-26 · airframe

Airworthiness Directives; Embraer S.A. Airplanes

What this AD requires

We are adopting a new airworthiness directive (AD) for all Embraer S.A. Model ERJ 190-100 STD, -100 LR, -100 IGW airplanes; and Model ERJ 190-200 STD, -200 LR, and -200 IGW airplanes. This AD was prompted by reports of corrosion and chromium layer chipping of the forward and aft pintle pins of the main landing gear (MLG) shock struts. This AD requires repetitive inspections for discrepancies of affected forward and aft pintle pins of the MLG shock struts, and corrective actions if necessary. We are issuing this AD to address the unsafe condition on these products.

Repetitive inspection. Re-inspect every 72 months. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2019-03-21 applies to

MakesEmbraer S.A.

ModelsERJ 190-100 STD, ERJ 190-100 LR, ERJ 190-100 IGW, ERJ 190-200 STD, ERJ 190-200 LR, ERJ 190-200 IGW, ERJ 190

Applies to all serial numbers.

Whether AD 2019-03-21 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 2019-03-21 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.