Is AD 04-33 a recurring Airworthiness Directive?

No — AD 04-33 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 04-33 apply to?

AD 04-33 applies to Boeing — models 737-700, 737-800, 757-200, 757-300. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 04-33

one-time

AD 04-33 · 2004-01-07 · airframe

Airworthiness Directives; Boeing Model 737-600, 737-700, 737-800, 757-200, and 757-300 Series Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD), applicable to certain Boeing Model 737-600, 737-700, 737-800, 757-200, and 757-300 series airplanes, that requires replacing existing video distribution unit (VDU) connectors with new, improved connectors or new wire assemblies (jumpers), and performing related actions, as applicable. This action is necessary to prevent a short circuit in a VDU connector and consequent arcing and damage to wiring within the connector, which could result in damage to adjacent systems or structure and possible smoke or fire in the airplane cabin. This action is intended to address the identified unsafe condition.

Which aircraft AD 04-33 applies to

MakesBoeing

Models737-700, 737-800, 757-200, 757-300

certain

Whether AD 04-33 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 04-33 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.