| 2004-05-24 | Lycoming Engines (Formerly Textron Lycoming) AEIO-540, IO-540, LTIO-540, O-540, and… | Mar 30, 2004 | Engine (IO-540 SER)Only with: Engines with crankshaft gear retaining bolts P/N STD-2209 installed; excludes O-540-F series engines subject to AD 99-03-05 with bolt not since replaced, engines with bolt installed at original assembly or replaced by Lycoming per SB 554 after November 10, 1998, engines with bolt from replacement kits 05K19987, 05K23325, 05K23326, 05K23327, 05K23335 or 05K23336, and engines with single-drive dual magnetos. |
| 2003-09-13 | the New Piper Aircraft, Inc. Models PA-23, PA-23-160, PA-23-235, PA-23-250, and… | Jun 23, 2003 | Airframe (PA-23-250)Certain serial numbers: PA-23 23-1–23-2046; PA-23-160 23-1–23-2046; PA-23-235 27-505–27-622; PA-23-250 27-1–27-504; PA-23-250 27-2000–27-8154030; PA-E23-250 27-2505–27-4916; …. Only with: Applies only to airplanes that do not incorporate P/N 17634-002 flap control torque tube or P/N 104622-002 or 104622-004 flap control torque tube assembly. |
| 99-05-09 | The New Piper Aircraft, Inc. PA-23, PA- 24, PA-28, PA-32, and PA-34 Series Airplanes | Mar 19, 1999 | Airframe (PA-23-250)Certain serial numbers: PA-23-235 27-505–27-622; PA-23-250 27-01–27-2504; PA-24-180 24-103–24-3687; PA-24-250 24-103–24-3687; PA-24-260 24-3642; PA-24-260 24-4000–24-5028; …. Only with: Equipped with Purolator air filter P/N 638873, Model CA161PL, or Piper P/N 460-632 (PS60007-2). |
| 83-22-01 R1 | The New Piper Aircraft, Inc.; Models PA-23-235, PA-23-250, and PA-E23-250 Airplanes | Oct 22, 1998 | Airframe (PA-23-250)Certain serial numbers: PA-23-235 27-505–27-622; PA-23-250 27-1–on; PA-E23-250 27-2505–27-7554168; PA-E23-250 27-7654001–on |
| 98-04-27 | The New Piper Aircraft Corporation Models PA-23, PA-23-160, PA-23-235, PA-23-250… | Mar 13, 1998 | Airframe (PA-23-250) |