Summary
We propose to supersede Airworthiness Directive (AD) 2005-17- 19, which applies to certain Cirrus Design Corporation (CDC) Models SR20 and SR22 airplanes. AD 2005-17-19 currently requires you to measure and adjust the crew seat break-over bolts and to replace the crew seat recline locks on both crew seats. Since we issued AD 2005-17- 19, CDC developed new crew seat break-over pins to replace the old crew seat break-over bolts. Consequently, this proposed AD would retain the action from AD 2005-17-19 of replacing the crew seat recline locks on both seats and would add the action of replacing the crew seat break- over bolts with the new crew seat break-over pins on both seats. We are proposing this AD to prevent the crew seats from folding forward during emergency landing dynamic loads with consequent occupant injury.