Airworthiness Directive 2002-21-02

one-time
Official AD 2002-21-02 · FR doc 02-26052 · 2002-10-16 · airframe

Airworthiness Directives; Cirrus Design Corporation Model SR20 and SR22 Airplanes

What this AD requires

This amendment adopts a new airworthiness directive (AD) that applies to certain Cirrus Design Corporation (Cirrus) Model SR20 and SR22 airplanes. This AD requires you to replace the self-locking retaining nut on the roll and yaw trim cartridges with a new self- locking retaining nut with a higher axial load capability. This AD is the result of a report that, during a production flight test, the self- locking retaining nut on the yaw trim cartridge came off. The actions specified by this AD are intended to prevent loss of the self-locking retaining nut on the roll and yaw trim cartridges during flight, which could result in jamming of the corresponding flight control system. Such jamming could lead to loss of control of the airplane.

Which aircraft AD 2002-21-02 applies to

MakesCirrus
ModelsSR20, SR22
Serial-conditional — narrows to serials 1005–1241, 0002–0333.
Part-conditionalMS21044N3.

SR20 serials 1005 through 1241 EXCEPT 1235, 1237, 1238; SR22 serials 0002 through 0333 EXCEPT 0309, 0322, 0323, 0328. Requires replacing yaw/roll trim cartridge self-locking retaining nut with P/N MS21044N3 per Cirrus Alert SB A20-27-06 (SR20) / SB A22-27-03 (SR22), both issued September 20, 2002; prohibits installing any other P/N going forward.

Whether AD 2002-21-02 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 complianceThe specific action taken (inspected, replaced, modified) and to what revision.
DateWhen the work was done.
Aircraft timeTotal time in service / tach at compliance — how recurring next-due is computed.
Signature & certificateThe A&P/IA who returned it to service, with certificate number.
Is AD 2002-21-02 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.