Is AD 01-11899 a recurring Airworthiness Directive?

No — AD 01-11899 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 01-11899 apply to?

AD 01-11899 applies to Empresa Brasileira De Aeronautica S.A. (Embraer) — models EMB-145. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 01-11899

one-time

AD 01-11899 · 2001-05-11 · airframe

Airworthiness Directives; Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and EMB-145 Series Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD) that is applicable to certain Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and EMB-145 series airplanes. This action requires revising the FAA-approved Airplane Flight Manual to prohibit in-flight auxiliary power unit (APU) starts, and installing a placard on or near the APU start/stop switch panel to provide such instructions to the flight crew. This action is necessary to prevent flame backflow into the APU compartment through the eductor during in-flight APU starts, which could result in fire in the APU compartment. This action is intended to address the identified unsafe condition.

Which aircraft AD 01-11899 applies to

MakesEmpresa Brasileira De Aeronautica S.A. (Embraer)

ModelsEMB-145

certain

Whether AD 01-11899 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 01-11899 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.