AD 91-05-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | B-N Group Ltd. | BN-2T | Airworthiness Directives; PILATUS BRITTEN-NORMAN (PBN) Model BN-2T Turbine Islander Airplanes |
| aircraft | B-N Group Ltd. | BN-2T-4R | Airworthiness Directives; PILATUS BRITTEN-NORMAN (PBN) Model BN-2T Turbine Islander Airplanes |
Unsafe Condition
Loss of engine power on both engines simultaneously due to failure of the engine ignition system.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the engine ignition system as described in PBN Service Bulletin BN-2/SB 193. Special flight permits may be issued under FAR 21.197 and 21.199 to operate to a location where the modification can be done. Alternate methods of compliance or adjustments may be approved by the Manager, Brussels Aircraft Certification Staff.
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Compliance Time
within the next 200 hours time-in-service after the effective date of this AD
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Affected Aircraft
PILATUS BRITTEN-NORMAN (PBN) Model BN-2T Turbine Islander airplanes (all serial numbers) without PBN Modification Number NB/M/1429 incorporated.
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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