Is AD 03-20709 a recurring Airworthiness Directive?

No — AD 03-20709 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 03-20709 apply to?

AD 03-20709 applies to Dornier Luftfahrt Gmbh — models 228-101, 228-200, 228-201, 228-202, 228-212. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 03-20709

one-time

AD 03-20709 · 2003-08-18 · airframe

Airworthiness Directives; Dornier Luftfahrt GMBH Models 228-100, 228-101, 228-200, 228-201, 228-202, and 228-212 Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD) that applies to certain Dornier Luftfahrt GMBH (Dornier) Models 228-100, 228-101, 228-200, 228-201, 228-202, and 228-212 airplanes that have electrical cabin/cockpit heater option P05 or option P09 installed. This AD requires you to modify the cockpit and cabin auxiliary heating wiring. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions specified by this AD are intended to correct problems with the current design of the heater wiring, which could result in failure of the auxiliary cabin heater. Such failure could lead to overheating and smoke in the cockpit.

Which aircraft AD 03-20709 applies to

MakesDornier Luftfahrt Gmbh

Models228-101, 228-200, 228-201, 228-202, 228-212

certain

Whether AD 03-20709 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 03-20709 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.