AD 70-07-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | B-N Group Ltd. | BN-2 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN-2A | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-2 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-20 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-21 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-26 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-27 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-3 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-6 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-8 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-9 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN2A MK. III | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN2A MK. III-2 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
| aircraft | B-N Group Ltd. | BN2A MK. III-3 | Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes |
Unsafe Condition
Possible engine fires due to accumulation of fuel in the rear of the carburetor air box and hot air ducting.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Install drain holes in each carburetor air box and engine cowling per Britten-Norman Service Bulletin No. BN-2/SB.28 or FAA-approved equivalent.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 25 hours' time in service after the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
B-N Group Ltd. Models 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, and other listed variants
AI-generated summary from the source AD text. Verify against the official source before acting.
Federal Register Abstract
Carburetor Air Box
Applicability Source Text
Show captured applicability text from the source AD
AD Final Rules - DRS_70-07-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-07-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes Subject: Carburetor Air Box Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/31/1970 Make: B-N Group Ltd. Model: 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 | B...Show more 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: 70-07-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-965 AD NUMBER: 70-07-05 SUBJECT HEADING: Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes ACTION: SUMMARY: DATES: Effective March 31, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-07-05 BRITTEN-NORMAN, LTD: Amdt. 39-965. Applies to Models BN-2 and BN-2A airplanes. To prevent possible engine fires due to accumulation of fuel in the rear of the carburetor air box and hot air ducting, within the next 25 hours' time in service after the effective date of this AD, unless already accomplished, install drain holes in each carburetor air box and in each engine cowling in accordance with Britten-Norman Service Bulletin No. BN-2/SB.28, dated February 12, 1970, or later ARB-approved issue, or an FAA-approved equivalent. This amendment becomes effective March 31, 1970. FOOTER:
Document Text
Show stored source text (verify against official source)
AD Final Rules - DRS_70-07-05.html Copy URL Print/Save as PDF Document Versions Feedback Details AD Number: 70-07-05 Document Type: AD Final Rules Docket Number: Unknown Subject Heading: Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes Subject: Carburetor Air Box Status: Current Citation: This information is not available. Citation Publish Date: Effective Date: 03/31/1970 Make: B-N Group Ltd. Model: 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 | B...Show more 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: 70-07-05 CITATION: This information is not available. PAGE NUMBER: DOCKET NUMBER: Unknown AMENDMENT: 39-965 AD NUMBER: 70-07-05 SUBJECT HEADING: Airworthiness Directives; Britten Norman Models BN-2 and BN-2A Airplanes ACTION: SUMMARY: DATES: Effective March 31, 1970. ADDRESSES: FOR FURTHER INFORMATION CONTACT: SUPPLEMENTARY INFORMATION: REGULATORY TEXT: 70-07-05 BRITTEN-NORMAN, LTD: Amdt. 39-965. Applies to Models BN-2 and BN-2A airplanes. To prevent possible engine fires due to accumulation of fuel in the rear of the carburetor air box and hot air ducting, within the next 25 hours' time in service after the effective date of this AD, unless already accomplished, install drain holes in each carburetor air box and in each engine cowling in accordance with Britten-Norman Service Bulletin No. BN-2/SB.28, dated February 12, 1970, or later ARB-approved issue, or an FAA-approved equivalent. This amendment becomes effective March 31, 1970. FOOTER:
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.
Related Airworthiness Directives
2023-09-09 Recurring
final ruleAirworthiness Directives; Various Airplanes, Helicopters, and Engines
Unsafe Condition: Multiple failures of spot-welded, multi-segment v-band couplings at the tailpipe to the turbocharger exhaust housing flange.
2022-03-15
final ruleAirworthiness Directives; Various Airplanes
Unsafe Condition: The displayed fuel quantity can have an error as much as four gallons/fuel tank with the display indicating four gallons with an empty tank. In the context of this event, the end level effect is th...
2021-18-01 Recurring
final ruleAirworthiness Directives; B-N Group Ltd. Airplanes
Unsafe Condition: Failure of the rudder final drive rod because of cracks in the region of the taper pins.
2016-26-09
final ruleAirworthiness Directives; B-N Group Ltd. Airplanes
Unsafe Condition: cracks in the inner shell of certain pitot/static pressure heads, Part Number (P/N) DU130-24, which could lead to incorrect readings on the pressure instrumentation, e.g. altimeters, vertical speed...