Airworthiness Directive · Amendment 39-14767 · Cirrus Design Corporation Models SR20 and SR22 Airplanes
Cirrus Design Corporation Models SR20 and SR22 Airplanes
This AD affects the following airplane models and serial numbers that are certificated in any category:
| Model | Serial Nos. |
|---|---|
| (1) SR20 | 1005 through 1600. |
| (2) SR22 | 0002 through 1727. |
We are adopting a new airworthiness directive (AD) that supersedes 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 AD retains the action from AD 2005-17-19 of replacing the crew seat recline locks on both seats and adds the action of replacing the crew seat break-over bolts with the new crew seat break-over pins on both seats. We are issuing this AD to prevent the crew seats from folding forward during emergency landing dynamic loads with consequent occupant injury.
To address this problem, you must do the following:
| Actions | Compliance | Procedures |
|---|---|---|
| (1) For Model SR20, serial numbers (S/Ns) 1005 through 1600, and Model SR22, S/Ns 0002 through 1727, do the following actions: (i) At the lower back of the crew seat, release the reclosable fasteners to expose the lower seat frame. (ii) Replace the crew seat break-over bolt with the new crew seat break-over pin, part number 17063-002. (iii) Recover the seat frame, refastening the reclosable fasteners. (iv) Inspect the crew seat. (v) Repeat the above actions for the opposite crew seat. | Within 50 hours time-in-service (TIS) or within 180 days, whichever occurs first, after October 24, 2006 (the effective date of this AD), unless already done. | Follow Cirrus Design Corporation Service Bulletin SB 2X-25-17 R1, Issued: December 15, 2005, Revised: January 20, 2006. |
| (2) For Models SR20, S/Ns 1005 through 1455, and SR22, S/Ns 0002 through 1044, do the following actions: (i) Identify whether the recline lock is secured with two bolts or three bolts. | Within 50 hours TIS or within 180 days, whichever occurs first after October 13, 2005 (the effective date of AD 2005-17-19), unless already done. | Follow Cirrus Design Corporation Service Bulletin SB 2X-25-06 R4, Issued: August 13, 2004, Revised: May 5, 2005. |
| (ii) If the recline locks are secured with two bolts, remove the existing recline locks and replace with the new recline locks kit, Kit Number 70084-001. | ||
| (iii) If the recline locks are secured with three bolts, remove existing recline locks and replace with the new recline locks kit, Kit Number 70084-002. | ||
| (iv) Check break-over pin alignment and adjust as necessary. | ||
| (v) Check that the locks engage with the break-over bolts with the seat in the full recline position. If full seat recline is not possible or difficult to engage, grinding of the lower aft seat frame is necessary. | ||
| (vi) Repeat the above actions for the opposite crew seat. |
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
