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Airworthiness Directive 2006-04-10

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Official AD 2006-04-10 · FR doc 06-1407 · 2006-02-17 · airframe

Airworthiness Directives; Cessna Model 500, 550, S550, 560, 560XL, and 750 Airplanes

What this AD requires

The FAA is adopting a new airworthiness directive (AD) for certain Cessna Model 500, 550, S550, 560, 560XL, and 750 airplanes. This AD requires installing identification sleeves on the wires for the positive and negative terminal studs of the engine and/or auxiliary power unit (APU) fire extinguishing bottles, as applicable, and re- connecting the wires to the correct terminal studs. This AD results from a report of mis-wired fire extinguishing bottles. We are issuing this AD to ensure that the fire extinguishing bottles are activated in the event of an engine or APU fire, and that flammable fluids are not supplied during a fire, which could result in an unextinguished fire in the nacelle or APU.

Which aircraft AD 2006-04-10 applies to

MakesCessna
Models500, 550, S550, 560, 560XL, 750

Applies to airplanes as identified in Cessna service bulletins SB500-26-02, SB550-26-05, SB560-26-01, SB560XL-26-02 (Rev 1), SB750-26-05, and SBS550-26-02 (mis-wired fire extinguishing bottles).

Whether AD 2006-04-10 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 2006-04-10 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.