| 2015-05-04 | Bell Helicopter Textron Canada Helicopters | Apr 20, 2015 | Airframe (407)Certain serial numbers: 407 53000–53900; 407 53911–54061; 407 54300. Only with: Upper left longeron assembly P/N 206-031-314-037, 206-031-314-177, or 206-031-314-219B installed. |
| 2013-22-21 | Bell Helicopter Textron, Inc., Helicopters | Dec 13, 2013 | Airframe (407)Only with: Apical Industries, Inc. emergency float kit installed under STC SR01535LA. |
| 2013-20-05 | Bell Helicopter Textron Canada Limited (Bell) Helicopters | Dec 5, 2013 | Airframe (407)Certain serial numbers: 407 53000–53644 |
| 2013-22-01 | Bell Helicopter Textron Canada (Bell) Helicopters | Dec 5, 2013 | Airframe (407)Only with: Freewheel aft bearing cap P/N 406-040-509-101 with serial number A-1833 through A-1912 installed. |
| 2013-18-06 | Bell Helicopter Textron Canada Limited (Bell) Helicopters | Oct 17, 2013 | Airframe (407)Only with: Applies only to helicopters with specified flight control bellcrank, link, idler, bearing, swashplate link, or engine bipod mount fitting assemblies (various P/Ns by model) installed. |
| 2012-18-09 | Bell Helicopter Textron Canada Helicopters | Oct 22, 2012 | Airframe (407)Certain serial numbers: 407 53000–53990 |
| 2012-14-07 | Bell Helicopter Textron Canada Helicopters | Aug 3, 2012 | Airframe (407)Certain serial numbers: 407 53000–53900; 407 53911–53999; 407 54000–54081; 427 56001–56077; 427 58001; 427 58002. Only with: Model 407 with hydraulic servo actuator assembly P/N 206-076-062-105 or 206-076-062-107 installed; Model 427 with servo P/N 206-076-062-109 or 206-076-062-111 installed. |
| 2011-15-51 | Bell Helicopter Textron Canada (Bell) Model 407 and 427 Helicopters | Nov 14, 2011 | Airframe (407)Only with: Model 407 with hydraulic servo actuator assembly P/N 206-076-062-105 or -107 installed; Model 427 with servo P/N 206-076-062-109 or -111 installed. |
| 2010-26-51 | Bell Helicopter Textron Canada Limited (BHTC) Model 206A, 206B, 206L, 206L-1, 206L-3… | Mar 25, 2011 | Airframe (407)Serial numbers per RBI document attached to Bell Helicopter Textron ASBs 206-07-116, 206L-07-148, 222-07-106, 222U-07-77, 230-07-38, 407-07-81, 427-07-18, 430-07-41. Only with: Tail rotor blade with part number and serial number listed in the RBI document attached to the Bell ASBs installed. |
| 2009-25-08 | Bell Helicopter Textron Canada (BHTC) Model 407 and Model 427 Helicopters | Dec 28, 2009 | Airframe (407)Certain serial numbers: 407 53000–53408; 407 53421–53459; 427 56001–56046. Only with: Does not apply to helicopters with hydraulic pump input shaft P/N 407-340-107-101 and interconnect adapter P/N 407-340-108-101 installed in place of hydraulic pump driveshaft assembly P/N 406-040-072-105. |
| 2009-22-11 | Bell Helicopter Textron Canada Model 407 and 427 Helicopters | Nov 16, 2009 | Airframe (407)Certain serial numbers: 407 53000–53887; 407 53890–53916; 407 53918; 407 53920; 407 53921; 407 53923–53926; …. Only with: Anti-drive (swashplate) link assembly P/N 406-010-432-101 with S/N prefix of TI or TIFS installed. |
| 2009-07-52 | Bell Helicopter Textron Canada Limited Model 206A Series, 206B Series, 206L Series, 407… | May 1, 2009 | Airframe (407)Only with: Model 206A/206B/206L series with cyclic control lever assembly P/N 206-001-401-111, 206-001-400-115, or 206-001-400-111, and Model 407/427 with lever assembly P/N 407-001-320-105 or 407-001-320-109, with less than 50 hours TIS. |
| 2009-08-03 | Bell Helicopter Textron Canada Limited Model 206A, 206B, 206L, 206L-1, 206L-3, 206L-4… | Apr 24, 2009 | Airframe (407)Serial numbers per Rotor Blades, Inc. (RBI) document attached to Bell Helicopter Textron ASBs 206-07-116, 206L-07-148, 222-07-106, 222U-07-77, 230-07-38, 407-07-81, 427-07-18, 430-07-41. Only with: Tail rotor blade installed with a part number and serial number listed in the RBI document attached to the applicable Bell ASB. |
| 2008-14-06 | Bell Helicopter Textron Canada Model 206L, L-1, L-3, L-4, and 407 Helicopters | Aug 14, 2008 | Airframe (407)Only with: Horizontal stabilizer P/N 206-023-119-167 installed (206L series models) or P/N 407-023-801-109 installed (Model 407). |
| 2004-10-07 | Bell Helicopter Textron Canada Model 407 Helicopters | Jun 4, 2004 | Airframe (407)Only with: Bearing P/N 406-040-339-ALL, 407-340-339-101, 407-340-339-103, or 407-340-339-107 installed on the oil cooler blower bearing assembly or segmented tail rotor drive shaft assembly. |
| 2003-05-11 | Bell Helicopter Textron Canada Model 407 Helicopters | Apr 2, 2003 | Airframe (407)Certain serial numbers: 407 53000–53538 |
| 2002-22-10 | Bell Helicopter Textron Canada Limited Model 407 Helicopters | Nov 21, 2002 | Airframe (407)Certain serial numbers: 407 53000–53498; 407 53500–53512 |
| 2002-11-09 | Bell Helicopter Textron Canada Model 407 Helicopters | Jul 16, 2002 | Airframe (407)Certain serial numbers: 407 53000–53442. Only with: With flywheel P/N 407-040-316-101 installed. |
| 2001-13-02 | Bell Helicopter Textron Canada Model 407 Helicopters | Aug 1, 2001 | Airframe (407)Certain serial numbers: 407 53000–53194 |
| 2001-01-52 | Bell Helicopter Textron Canada Model 407 Helicopters | Feb 21, 2001 | Airframe (407) |
| 2000-14-16 | Bell Helicopter Textron Canada Model 407 Helicopters | Aug 29, 2000 | Airframe (407) |
| 2000-04-20 | Bell Helicopter Textron Canada Model 407 Helicopters | Apr 5, 2000 | Airframe (407)Certain serial numbers: 407 53000–53266 |
| 98-19-13 | Bell Helicopter Textron Canada (BHTC) Model 407 Helicopters | Jan 27, 1999 | Airframe (407)Only with: Engine-to-transmission driveshaft P/N 206-340-300-103 installed. |
| 98-12-22 | Bell Helicopter Textron Canada Model 407 Helicopters | Jul 15, 1998 | Airframe (407)Certain serial numbers: 407 53000; 407 53002–53065; 407 53067; 407 53069–53075 |
| 97-24-17 | Bell Helicopter Textron Canada Model 407 Helicopters | Apr 16, 1998 | Airframe (407) |