AD 79-21-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | B-N Group Ltd. | BN2A MK. III | Airworthiness Directives; Britten-Norman (Bembridge) LTD. BN-2A Mk III Series Trislander Airplanes |
| aircraft | B-N Group Ltd. | BN2A MK. III-2 | Airworthiness Directives; Britten-Norman (Bembridge) LTD. BN-2A Mk III Series Trislander Airplanes |
| aircraft | B-N Group Ltd. | BN2A MK. III-3 | Airworthiness Directives; Britten-Norman (Bembridge) LTD. BN-2A Mk III Series Trislander Airplanes |
Unsafe Condition
Failure of the elevator trim tab cable and possible resultant trim tab flutter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace existing elevator trim tab cables with new cables P/Ns NB-45-B-2747, 2749, 2745, respectively, in accordance with Britten-Norman Service Bulletin BN-2/SB.75 or an equivalent approved by the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to the accumulation of 1000 hours time in service or within 200 hours time in service after the effective date of this AD, whichever occurs later.
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Affected Aircraft
B-N Group Ltd. BN2A MK. III, BN2A MK. III-2, BN2A MK. III-3 airplanes that do not incorporate Britten-Norman modification NB/M/679.
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Elevator Trim Tab Cable
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_79-21-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-21-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Britten-Norman (Bembridge) LTD. BN-2A Mk III Series Trislander Airplanes Subject: Elevator Trim Tab Cable Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/12/1979 Make: B-N Group Ltd. Model: BN2A MK. III | BN2A MK. III-2 | BN2A MK. III-3 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 79-21-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3588 AD NUMBER: 79-21-03 SUBJECT HEADING: Airworthiness Directives; Britten-Norman (Bembridge) LTD. BN-2A Mk III Series Trislander Airplanes ACTION: SUMMARY: DATES: Effective November 12, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-21-03 BRITTEN-NORMAN (Bembridge) LTD.: Amendment 39-3588. Applies to BN-2A Mk III Series Trislander airplanes, certificated in all categories, which do not incorporate Britten-Norman modification NB/M/679. Compliance is required prior to the accumulation of 1000 hours time in service or within 200 hours time in service after the effective date of this AD, whichever occurs later, unless already accomplished. To prevent failure of the elevator trim tab cable and the possible resultant trim tab flutter, replace the existing elevator trim tab cables, P/Ns NB-45-B-2333, 2231, 2229 with new cables P/Ns NB-45-B-2747, 2749, 2745, respectively, in accordance with Britten-Norman Service Bulletin BN-2/SB.75, dated June 27, 1974, or an equivalent approved by the Chief, Aircraft Certification Staff, AEU-100, Federal Aviation Administration, c/o American Embassy, Brussels, Belgium. This amendment becomes effective November 12, 1979. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_79-21-03.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 79-21-03 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Britten-Norman (Bembridge) LTD. BN-2A Mk III Series Trislander Airplanes Subject: Elevator Trim Tab Cable Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 11/12/1979 Make: B-N Group Ltd. Model: BN2A MK. III | BN2A MK. III-2 | BN2A MK. III-3 Product Type: Aircraft Product Subtype: Small Airplane Affected AD: Superseded AD: Affected By: Superseded By: Service/Office: Office of Primary Responsibility: CFR Part Reference: Part 39 Comments: AIRWORTHINESS DIRECTIVES FINAL RULES: 79-21-03 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-3588 AD NUMBER: 79-21-03 SUBJECT HEADING: Airworthiness Directives; Britten-Norman (Bembridge) LTD. BN-2A Mk III Series Trislander Airplanes ACTION: SUMMARY: DATES: Effective November 12, 1979. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 79-21-03 BRITTEN-NORMAN (Bembridge) LTD.: Amendment 39-3588. Applies to BN-2A Mk III Series Trislander airplanes, certificated in all categories, which do not incorporate Britten-Norman modification NB/M/679. Compliance is required prior to the accumulation of 1000 hours time in service or within 200 hours time in service after the effective date of this AD, whichever occurs later, unless already accomplished. To prevent failure of the elevator trim tab cable and the possible resultant trim tab flutter, replace the existing elevator trim tab cables, P/Ns NB-45-B-2333, 2231, 2229 with new cables P/Ns NB-45-B-2747, 2749, 2745, respectively, in accordance with Britten-Norman Service Bulletin BN-2/SB.75, dated June 27, 1974, or an equivalent approved by the Chief, Aircraft Certification Staff, AEU-100, Federal Aviation Administration, c/o American Embassy, Brussels, Belgium. This amendment becomes effective November 12, 1979. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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