Is AD 2004-09-05 a recurring Airworthiness Directive?

No — AD 2004-09-05 is a one-time directive. Verify it was complied with in the aircraft's records.

Which aircraft does AD 2004-09-05 apply to?

AD 2004-09-05 applies to Cessna — models 500, 501, 550, 551. Serial/part conditions may narrow it to specific aircraft.

Airworthiness Directive 2004-09-05

one-time

Official AD 2004-09-05 · FR doc 04-9380 · 2004-04-28 · airframe

Airworthiness Directives; Cessna Model 500, 501, 550, and 551 Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD); applicable to certain Cessna Model 500, 501, 550, and 551 airplanes; that requires a one-time inspection of the brake stator disks to determine to what change level they have been modified (if any), and related investigative and corrective actions if necessary. This AD also requires that the existing markings on the piston housing of certain brake assemblies be eliminated. The actions specified by this AD are intended to prevent wheel lockups that may be caused by cracked or broken brake stator disks becoming jammed in the brake assembly and preventing rotation. Such jamming of the brake assembly may result in reduced directional control or braking performance during landing. This action is intended to address the identified unsafe condition.

Which aircraft AD 2004-09-05 applies to

MakesCessna

Models500, 501, 550, 551

Serial-conditional — narrows to serials 0001–0689, 0002–0733.

Part-conditional — 2-1528-6, 2-1530-4.

Applies only to airplanes equipped with BFGoodrich brake assembly P/N 2-1528-6 or 2-1530-4. Serial numbers 0001 through 0689 apply to Model 500/501; serial numbers 0002 through 0733 apply to Model 550/551.

Whether AD 2004-09-05 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 2004-09-05 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.