AD 86-23-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | B-N Group Ltd. | BN-2 | Airworthiness Directives; Pilatus Models BN-2 and BN-2A Islander Series Airplanes |
| aircraft | B-N Group Ltd. | BN-2A | Airworthiness Directives; Pilatus Models BN-2 and BN-2A Islander Series Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-2 | Airworthiness Directives; Pilatus Models BN-2 and BN-2A Islander Series Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-20 | Airworthiness Directives; Pilatus Models BN-2 and BN-2A Islander Series Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-21 | Airworthiness Directives; Pilatus Models BN-2 and BN-2A Islander Series Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-26 | Airworthiness Directives; Pilatus Models BN-2 and BN-2A Islander Series Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-27 | Airworthiness Directives; Pilatus Models BN-2 and BN-2A Islander Series Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-3 | Airworthiness Directives; Pilatus Models BN-2 and BN-2A Islander Series Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-6 | Airworthiness Directives; Pilatus Models BN-2 and BN-2A Islander Series Airplanes |
| aircraft | B-N Group Ltd. | BN-2A-8 | Airworthiness Directives; Pilatus Models BN-2 and BN-2A Islander Series Airplanes |
Unsafe Condition
Loose mass balance weight in the elevator trim weight assembly could cause undesirable oscillations, flutter, or control system wear.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the elevator mass balance weight by shaking and aural examination, checking for rust marks or lead deposits. If loose, remove the elevator, disassemble the trim weight assembly, clean components, apply EC2216 or equivalent epoxy adhesive, and reassemble. If no defect, reassemble and return to service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
within the next 100 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
Pilatus Britten-Norman Limited Models BN-2 and BN-2A Islander airplanes certificated in any category
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
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