Is AD 2023-16-06 a recurring Airworthiness Directive?

No — AD 2023-16-06 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2023-16-06 apply to?

AD 2023-16-06 applies to Hamilton Sundstrand — models 14SF-17, 14SF-19, 14SF. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2023-16-06

one-time

Official AD 2023-16-06 · FR doc 2023-19932 · 2023-09-15 · propeller

Airworthiness Directives; Hamilton Sundstrand Corporation Propellers

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for all Hamilton Sundstrand Corporation (Hamilton Sundstrand) Model 14SF-17 and 14SF-19 propellers. This AD was prompted by a report of an auxiliary motor and pump failing to feather a propeller in flight. This AD requires replacement of a certain auxiliary motor and pump. This AD also prohibits installation of a certain auxiliary motor and pump on any propeller. The FAA is issuing this AD to address the unsafe condition on these products.

Which aircraft AD 2023-16-06 applies to

MakesHamilton Sundstrand

Models14SF-17, 14SF-19, 14SF

Note 1 states these propellers are known to be installed on, but not limited to, Viking Air Limited (type certificate previously held by Bombardier/Canadair) Model CL-215-6B11 (CL-215T and CL-415 variants) airplanes.

Whether AD 2023-16-06 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 2023-16-06 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.