Is AD 2003-16-16 a recurring Airworthiness Directive?

Yes — AD 2003-16-16 requires a repetitive inspection every 650 hours. Next-due depends on the aircraft's time in service.

Which aircraft does AD 2003-16-16 apply to?

AD 2003-16-16 applies to Boeing — models 747-400, 747. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2003-16-16

recurring

Official AD 2003-16-16 · FR doc 03-21151 · 2003-08-27 · airframe

Airworthiness Directives; Boeing Model 747-400 Series Airplanes Equipped With General Electric Model CF6-80C2 Series Engines

What this AD requires

This amendment supersedes an existing airworthiness directive (AD), applicable to certain Boeing Model 747-400 series airplanes, that currently requires repetitive tests of the cone brake of the central drive unit (CDU) of the thrust reversers, and corrective actions if necessary. This amendment requires installation of a thrust reverser actuation system (TRAS) lock and various related modifications and installations. Following installation of the TRAS lock, this action also requires repetitive functional tests of the TRAS lock, and corrective action if necessary. These actions are intended to prevent an inadvertent deployment of a thrust reverser during flight, which could result in loss of control of the airplane.

Repetitive inspection. Re-inspect every 650 hours. The next-due date/hours depend on this aircraft’s time in service — a records report computes it from the logbooks.

Which aircraft AD 2003-16-16 applies to

MakesBoeing

Models747-400, 747

Applicability provision truncated in this excerpt ('each airplane identified in the preceding applicability provision'); text specifically addresses Model 747-400 series airplanes' thrust reverser center drive unit (CDU) cone brake functional test, restating AD 2000-09-03. Distinguishes airplanes modified per Boeing SB 747-78-2151 from unmodified airplanes; notes line numbers 1061 and subsequent equipped with GE CF6-80C2 engines had a third locking system installed in production.

Whether AD 2003-16-16 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 2003-16-16 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.