Airworthiness Directive 2008-05-09

one-time
Official AD 2008-05-09 · FR doc E8-3771 · 2008-03-04 · airframe

Airworthiness Directives; Cessna Aircraft Company 172, 182, and 206 Series Airplanes

What this AD requires

The FAA adopts a new airworthiness directive (AD) for certain Cessna Aircraft Company (Cessna) 172, 182, and 206 series airplanes. This AD requires you to remove the crew seats, modify the seat base/ back attach brackets, and reinstall the seats of the affected airplanes. This AD results from reports of the seat base/back attach bracket failing where it is welded to the seat base. We are issuing this AD to prevent failure of the seat base/back attach brackets, which could result in the seats collapsing backwards during flight with consequent loss of control.

Which aircraft AD 2008-05-09 applies to

MakesCessna
Models172R, 172S, 182T, T182T, 206H, T206H, 172, 182, 206
Serial-conditional — narrows to serials 17281211–17281356, 172S9621–172S10310, 172S10312–172S10324, 172S10327–172S10332, 172S10334–172S10349, 172S10351–172S10374, 172S10376–172S10386, 172S10388–172S10408, 172S10410–172S10412, 172S10414–172S10417, 172S10421–172S10423, 18281328–18281867, 18281869–18281871, 18281873–18281875, 18281877–18281877, T18208240–T18208651, T18208654–T18208654, T18208656–T18208659, T18208663–T18208663, T18208664–T18208664, T18208667–T18208668, 20608216–20608283, T20608445–T20608662, T20608664–T20608671, T20608673–T20608673, T20608674–T20608674, T20608676–T20608681, T20608683–T20608689, T20608691–T20608691, T20608692–T20608692, T20608694–T20608696, T20608699–T20608701, T20608703–T20608703, T20608704–T20608704.

Reports of seat base/back attach bracket failing where welded to seat base; could result in seats collapsing backwards during flight with consequent loss of control.

Whether AD 2008-05-09 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 2008-05-09 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.