AD 70-12-11
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 |
Unsafe Condition
Failure of the flap actuating system due to the use of flap lever drive attachment bolt P/N A111-6G and flap center operating lever P/N NB-45-D-997.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace flap lever drive attachment bolt P/N A111-6G with serviceable bolt P/N A111-9G. Replace flap center operating lever P/N NB-45-D-997 with either modified P/N NB-45-D-2173 (MOD.NB/M/417) per Britten Norman Modification Leaflet No. BN-2/NB/M/417, Part 2, Issue 1, dated April 8, 1970, or later ARB-approved issue, or FAA-approved equivalent, or install serviceable P/N NB-45-D-2173.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 50 hours' time in service after the effective date of this AD, unless already accomplished
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
B-N Group Ltd. Models BN-2 and BN-2A Airplanes, serial numbers up to and including S/N C231.
AI-generated summary from the source AD text. Verify against the official source before acting.
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.