Is AD 2020-11-07 a recurring Airworthiness Directive?

No — AD 2020-11-07 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2020-11-07 apply to?

AD 2020-11-07 applies to Mdhi — models 369D, 369E, 369FF, 369H, 369HE, 369HM, 369HS, 500N. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2020-11-07

one-time

Official AD 2020-11-07 · FR doc 2020-11157 · 2020-05-26 · airframe

Airworthiness Directives; MD Helicopter Inc., Helicopters

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for MD Helicopters Inc., (MDHI) Model 369D, 369E, 369FF, 369H, 369HE, 369HM, 369HS, 500N, and 600N helicopters. This AD was prompted by a report of non-conforming main rotor (M/R) hub lead-lag bolts (bolts). This AD requires removing certain bolts from service. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2020-11-07 applies to

MakesMdhi

Models369D, 369E, 369FF, 369H, 369HE, 369HM, 369HS, 500N, 600N, 369, 500, 600

Part-conditional — 369D21220.

Applies only to helicopters with main rotor (M/R) hub lead-lag bolt P/N 369D21220 having a serial number listed in paragraph 1.B. of MD Helicopters SB369D-223, SB369E-122, SB369F-110, SB369H-259, SB500N-060, or SB600N-073, each dated April 19, 2019, installed.

Whether AD 2020-11-07 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 2020-11-07 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.