Is AD 2020-03-11 a recurring Airworthiness Directive?

No — AD 2020-03-11 is a one-time directive. Verify it was complied with in the aircraft's records.

Airworthiness Directive 2020-03-11

Q: Which aircraft does AD 2020-03-11 apply to?

AD 2020-03-11 applies to The Boeing Company — models 707-100 long body, 707-200, 707-100B long body, 707-100B short body, 707-300, 707-300B, 707-300C, 707-400. Serial/part conditions may narrow it to specific aircraft.

one-time

Official AD 2020-03-11 · FR doc 2020-02667 · 2020-02-12 · airframe

Airworthiness Directives; The Boeing Company Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Boeing Model 707 airplanes and Model 720 and 720B series airplanes. This AD was prompted by the FAA's analysis of the Model 707 and 720 fuel system reviews conducted by the manufacturer. This AD requires modifying the fuel quantity indicating system (FQIS) to prevent development of an ignition source inside the center fuel tank due to electrical fault conditions. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2020-03-11 applies to

MakesThe Boeing Company

Models707-100 long body, 707-200, 707-100B long body, 707-100B short body, 707-300, 707-300B, 707-300C, 707-400, 720, 720B, 707

Excludes airplanes equipped with a flammability reduction means (FRM) approved by the FAA as compliant with the Fuel Tank Flammability Reduction (FTFR) requirements of 14 CFR 25.981(b) or 14 CFR 26.33(c)(1).

Whether AD 2020-03-11 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 2020-03-11 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.