| 2017-14-06 | Sikorsky Aircraft Corporation Helicopters (Type Certificate Previously Held by Schweizer… | Aug 25, 2017 | Airframe (269C)Only with: Lower coupling driveshaft P/N 269-5412, 269A5504, 269A5504-003, 269A5504-005, 269A5559, or 269A5559-003 installed. |
| 2015-23-01 | Sikorsky Aircraft Corporation (Type Certificate Previously Held by Schweizer Aircraft… | Dec 15, 2015 | Airframe (269C) |
| 2006-10-21 | Engine Components Incorporated (ECi) Reciprocating Engine Connecting Rods | Jun 22, 2006 | Engine (O-360-D1A)Only with: ECi connecting rods P/N AEL11750 (forging P/N AEL11488) installed, rod serial numbers 54/6 and below, produced between January 2002 and January 2004. |
| 2006-06-16 | Lycoming Engines (Formerly Textron Lycoming) AEIO-360, IO-360, O-360, LIO-360, and… | Apr 27, 2006 | Engine (O-360-D1A)Only with: Engines manufactured new or rebuilt, overhauled, or that had a crankshaft installed after March 1, 1999. |
| 2005-19-11 | Lycoming Engines (Formerly Textron Lycoming) AEIO-360, IO-360, O-360, LIO-360, LO-360… | Oct 21, 2005 | Engine (O-360-D1A)Only with: Engines rated at 300 HP or lower, manufactured new, rebuilt, or overhauled after March 1, 1999, or that had a crankshaft installed after March 1, 1999. |