CTHIn ForceLegislation
AD/BELL 222/31 Amdt 2 - Tail Rotor Blade
Bell Helicopter Textron Canada (BHTC) 22Bell Helicopter Textron Canada (BHTC) 222 Series Helicopters
Start here
Get a plain-English read of Bell Helicopter Textron Canada (BHTC) 22
Turn the raw legal text into a practical explanation grounded in AD/BELL 222/31 Amdt 2 - Tail Rotor Blade.
Bell Helicopter Textron Canada (BHTC) 222 Series Helicopters
| AD/BELL 222/31 Amdt 2 | Tail Rotor Blade | 7/2008 DM |
|---|
| Applicability: | Models 222, 222B, 222U, and 230 helicopters. |
|---|---|
| Requirement: | 1. Inspect the tail rotor blades in accordance with Part I of Bell Helicopter Textron Alert Service Bulletin (ASB) 222U-04-71 Revision A, or ASB 222-04-100 Revision A, or ASB 230-04-31 Revision A, as applicable; or later Transport Canada approved revision.2. Inspect the tail rotor blades in accordance with Part II of ASB 222U-04-71 Revision A, or ASB 222-04-100 Revision A, or ASB 230-04-31 Revision A, as applicable; or later Transport Canada approved revision.3. Rework the affected tail rotor blades in accordance with Part III of ASB222U-04-71 Revision A, or ASB 222-04-100 Revision A, or ASB 230-04-31 Revision A, as applicable; or later Transport Canada approved revision.Note 1: Reworking the tail rotor blades in accordance with Requirement 3 eliminates the repetitive inspection requirements of this Directive.Note 2: Transport Canada AD CF-2004-21 R3 refers. |
| Compliance: | 1. Unless the initial inspection is already accomplished, within 3 flight hours after1 June 2008, and thereafter at intervals not to exceed 3 flight hours; until compliance with Requirement 3.2. Unless the initial inspection is already accomplished, within 50 flight hours after 1 June 2008, and thereafter at intervals not to exceed 50 flight hours; until compliance with Requirement 3.3. Before 31 December 2008, unless already accomplished.This Directive shall be entered on the Maintenance Release as maintenance required. The Requirement 1 inspection may be performed and certified by the Pilot in Command who has been trained to do the inspection by an appropriately qualified person. In this case, a copy of the Requirement document and this Directive is to be carried on the aircraft. |
| This Amendment becomes effective on 1 June 2008. | |
|---|---|
| Background: | Reports were received of three occurrences of cracked tail rotor blades which were discovered during scheduled inspection. Two cracks initiated from the outboard bearing bore underneath the flanged sleeves. The third crack initiated from the inboard bearing bore. Corrosion and machining burrs are suspected as the crack initiators.Amendment 1 introduced terminating action for the repetitive inspection requirements.Amendment 2 is issued in response to a revision of the related Transport Canada AD, which extends terminating action until 31 December 2008. |