AD 76-21-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | B-N Group Ltd. | BN-2A | Airworthiness Directives; Britten Norman Models BN-2A and BN-2A MK III Airplanes, All Series |
| aircraft | B-N Group Ltd. | BN-2A-2 | Airworthiness Directives; Britten Norman Models BN-2A and BN-2A MK III Airplanes, All Series |
| aircraft | B-N Group Ltd. | BN-2A-20 | Airworthiness Directives; Britten Norman Models BN-2A and BN-2A MK III Airplanes, All Series |
| aircraft | B-N Group Ltd. | BN-2A-21 | Airworthiness Directives; Britten Norman Models BN-2A and BN-2A MK III Airplanes, All Series |
| aircraft | B-N Group Ltd. | BN-2A-26 | Airworthiness Directives; Britten Norman Models BN-2A and BN-2A MK III Airplanes, All Series |
| aircraft | B-N Group Ltd. | BN-2A-27 | Airworthiness Directives; Britten Norman Models BN-2A and BN-2A MK III Airplanes, All Series |
| aircraft | B-N Group Ltd. | BN-2A-3 | Airworthiness Directives; Britten Norman Models BN-2A and BN-2A MK III Airplanes, All Series |
| aircraft | B-N Group Ltd. | BN-2A-6 | Airworthiness Directives; Britten Norman Models BN-2A and BN-2A MK III Airplanes, All Series |
| aircraft | B-N Group Ltd. | BN-2A-8 | Airworthiness Directives; Britten Norman Models BN-2A and BN-2A MK III Airplanes, All Series |
| aircraft | B-N Group Ltd. | BN-2A-9 | Airworthiness Directives; Britten Norman Models BN-2A and BN-2A MK III Airplanes, All Series |
Unsafe Condition
Corrosion and cracks on the forward face of the engine mounting brackets could lead to engine separation.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the forward face of the engine mounting brackets (P/N NB-20-3463 for BN-2A and P/N NB-20-5781 for BN-2A MK III) for corrosion and cracks per Britten-Norman Service Bulletin BN-2/SB,91, issue 1. Re-assemble brackets if no corrosion found; repair and re-assemble if minor surface corrosion without pitting; replace with new parts if severe corrosion or pitting/cracks are found.
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 or before 2 years since new, whichever occurs later
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
B-N Group Ltd. Models BN-2A and BN-2A MK III airplanes, all series
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.