Is AD 05-9198 a recurring Airworthiness Directive?

No — AD 05-9198 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 05-9198 apply to?

AD 05-9198 applies to Boeing — models 777-300. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 05-9198

one-time

AD 05-9198 · 2005-05-11 · airframe

Airworthiness Directives; Boeing Model 777-200 and 777-300 Series Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 777-200 and -300 series airplanes. This AD requires modification of the operational program software (OPS) of the air data inertial reference unit (ADIRU). This AD is prompted by a report of the display of erroneous heading information to the pilot due to a defect in the OPS of the ADIRU. We are issuing this AD to prevent the display of erroneous heading information to the pilot, which could result in loss of the main sources of attitude data, consequent high pilot workload, and subsequent deviation from the intended flight path.

Which aircraft AD 05-9198 applies to

MakesBoeing

Models777-300

certain

Whether AD 05-9198 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 05-9198 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.