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In the text of ADs · 176
AD 2019-23-09(a) ApplicabilityThis AD applies to Bell Helicopter Textron Canada Limited Model 427 helicopters with a vertical fin part number (P/N…AD 2011-03-03(f) Actions and Compliance…427-09-29, REV A, dated November 17, 2009.
(i) If no cracks are found during the inspection required by…AD 2016-20-01Related Service InformationWe reviewed Bell Alert Service Bulletin (ASB) 427-15-37 for Model 427 helicopters and Bell ASB 429-15-23…AD 2018-21-15(a) Applicability…part number (P/N) 427-010-210-105 or aft rod end P/N 427-010-210-109 installed, certificated…AD 2012-10-01Differences Between This AD and the TC AD…Model 427 helicopter, serial numbers 58001 and 58002; however, this AD is not applicable to the BHTC Model 427 helicopters…AD 2019-23-09Discussion…Model 427 helicopters with a vertical fin part number (P/N) 427-035-840-105 or P/N 427-035…AD 2018-21-15Request…to rod end P/N 427-010-210-105 instead of P/N 427-010-210-109.
We agree with…AD 2009-25-08(i) Related Information…83, dated May 22, 2008, Alert Service Bulletin No. 427-08-22, dated June 26, 2008, Technical Bulletin No. 407…AD 2012-10-01(a) ApplicabilityThis AD applies to Model 427 helicopters, serial numbers 56001 through 56084, certificated in any category.AD 2025-13-01(c) ApplicabilityThis AD applies to Bell Textron Canada Limited Model 407 and 427 helicopters, certificated in any category.AD 2009-08-03Historical(c) Applicability…81 | A | September 19, 2007 | 407. |
| 427-07-18 | A | September 19, 2007 | 427. |
| 430-07-41 | C | September 20…AD 2009-15-15(c) Applicability(c) This AD applies to Model 427 helicopters, serial numbers 56001 through 56057, 58001, and 58002, certificated in any category.AD 2013-18-06(a) ApplicabilityThis AD applies to Model 206A, 206B, 206L, 206L-1, 206L-3, 206L-4, 222, 222B, 222U, 230, 407, 427…AD 2011-03-03(c) Applicability(c) This AD applies to Bell Helicopter Textron Canada Limited Model 427 helicopters, all serial numbers (SNs), certificated in any…AD 2012-14-07Related Service Information…407 helicopter, and Bell ASB 427-11-35, Revision B, for the Model 427 helicopter. Both ASBs are dated August…AD 2018-21-15(f) Required Actions…rod end P/N 427-010-210-105 or an aft rod end P/N 427-010-210-109 on…AD 2013-18-06Related Service Information…427-09-25 for Model 427; and No. 430-09-42, for Model 430, all dated April 7, 2009. The…AD 2025-25-01(c) ApplicabilityThis AD applies to Bell Textron Canada Limited Model 427 helicopters, serial numbers 56001 through 56084 inclusive, 58001, and 58002…AD 2009-22-11Related Service Information…427-09-24, Revision A, dated March 30, 2009, for the Model 427 helicopters. The ASBs specify a one-time…AD 2015-17-02(a) ApplicabilityThis AD applies to Model 206L-4, 407, 427, and 429 helicopters with an engine-to-transmission driveshaft assembly (driveshaft…