# AD 70-03-06: Rudder Bar Assembly - Type: Airworthiness directive - Status: Current - Products: B-N Group BN-2, BN-2A, BN-2A-2, BN-2A-20, BN-2A-21, BN-2A-26, BN-2A-27, BN-2A-3, BN-2A-6, BN-2A-8, BN-2A-9, BN2A MK. III and 2 more - Effective: February 5, 1970 - Superseded by: Nothing supersedes this AD - Product type: Aircraft, Small airplane - Amendment: 39-934 - Registered aircraft: 52 may be affected, by airframe or engine model (OpenAirDocs) - FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/DA9E5B62B8406AEE86256A45007047AF.0001 - DRS record last changed: May 30, 2024 - Page: https://openairdocs.org/ad/70-03-06 ## The airworthiness directive 70-03-06 BRITTEN-NORMAN, LTD: Amdt. 39-934. Applies to Britten-Norman Models BN-2 and BN-2A airplanes. Compliance is required as indicated. To prevent failure of the rudder bar assembly due to failure of the silver solder joint attaching the bronze bushing to the inboard end of the rudder bar beams, accomplish the following: (a) Within the next 20 hours' time in service after the effective date of this AD, unless already accomplished, and thereafter at intervals not to exceed 20 hours' time in service since the last inspection, visually inspect the silver solder joint attaching the bronze bushing to the inboard end of each rudder bar beam (P/N NB-45-3-071) for failure in accordance with Britten-Norman Service Bulletin No. BN-2/SB.20, Issue 2, dated 17 November 1969, or an FAA-approved equivalent. (b) If during the inspections required by paragraph (a), a rudder bar beam is found that has failed - (1) Rework the failed rudder bar beam by removing the bronze bushingand welding in a steel bushing in accordance with Britten-Norman Service Bulletin No. BN-2/SB.20, Issue 2, dated 17 November 1969, or an FAA-approved equivalent; or (2) Replace the failed rudder bar beam with a serviceable beam which has had incorporated Britten-Norman Modification NB/M/341, Part A (left hand assembly), or NB/M/341, Part B (right hand assembly). (c) The repetitive inspections required by paragraph (a) may be discontinued on each rudder bar beam which has been reworked or replaced in accordance with paragraph (b). This amendment becomes effective February 5, 1970. ## Affected data sheets (2) (OpenAirDocs) The type certificate data sheets whose models the AD names. - [TCDS A17EU](https://openairdocs.org/tcds/A17EU): Britten-Norman Aerospace Ltd.; names 11 of 18 models: BN-2A-2, BN-2A-9, BN-2A-26, BN-2A-27, BN-2A-3, BN-2A-8, BN-2A-20, BN-2A-21… - [TCDS A29EU](https://openairdocs.org/tcds/A29EU): Britten-Norman Aerospace Ltd.; names 3 of 3 models: BN2A MK. III, BN2A MK. III-2, BN2A MK. III-3 ## Registered aircraft it may apply to (OpenAirDocs) Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment. - Aircraft: 52 (52 by airframe model, 0 by engine model) - Makers: Britten-Norman 47, Britten Norman 3, B-N Group 1, Pilatus Britten-Norman 1 Models with the most aircraft: - [Britten-Norman BN2A-26 ISLANDER](https://openairdocs.org/model/britten-norman-bn2a-26-islander): 14 aircraft (airframe model) - [Britten-Norman BN-2A](https://openairdocs.org/model/britten-norman-bn-2a): 8 aircraft (airframe model) - [Britten-Norman BN-2A-8](https://openairdocs.org/model/britten-norman-bn-2a-8): 8 aircraft (airframe model) - [Britten-Norman BN-2A-27](https://openairdocs.org/model/britten-norman-bn-2a-27): 5 aircraft (airframe model) - [Britten-Norman BN-2A-9](https://openairdocs.org/model/britten-norman-bn-2a-9): 4 aircraft (airframe model) - [Britten-Norman BN-2A-20](https://openairdocs.org/model/britten-norman-bn-2a-20): 3 aircraft (airframe model) - [Britten Norman BN-2A MK III](https://openairdocs.org/model/britten-norman-bn-2a-mk-iii): 2 aircraft (airframe model) - [Britten-Norman BN-2A-21](https://openairdocs.org/model/britten-norman-bn-2a-21): 2 aircraft (airframe model) - [Britten-Norman BN-2 ISLANDER](https://openairdocs.org/model/britten-norman-bn-2-islander): 1 aircraft (airframe model) - [Britten-Norman BN-2A-6](https://openairdocs.org/model/britten-norman-bn-2a-6): 1 aircraft (airframe model) - [Britten Norman BN 2A MKIII 2](https://openairdocs.org/model/britten-norman-bn-2a-mkiii-2): 1 aircraft (airframe model) - [B-N Group BN-2A-26](https://openairdocs.org/model/b-n-group-bn-2a-26): 1 aircraft (airframe model) - [Britten-Norman BN-2A-26](https://openairdocs.org/model/britten-norman-bn-2a-26): 1 aircraft (airframe model) - [Pilatus Britten-Norman BN-2A-26](https://openairdocs.org/model/pilatus-britten-norman-bn-2a-26): 1 aircraft (airframe model) All 14 models: https://openairdocs.org/ad/70-03-06/models.md Every aircraft: https://openairdocs.org/ad/70-03-06/aircraft.md Its text cites no advisory circulars or STCs. --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.