EASA SIB NM-11-48
Learjet Inc. 31, 31A, 35, 35A, 36 and 36A aeroplanes - Wing Transverse Duct Assembly
The FAA Special Airworthiness Information Bulletin SAIB: NM-11-48 provides guidance for owners and operators of Learjet Inc. Model 31, 31A, 35, 35A (C-21A), 36, and 36A airplanes regarding inspection and potential replacement of the wing transverse duct assembly. This bulletin addresses possible restricted airflow through the duct that could reduce the anti-ice capability of the right wing leading edge. The document is informational and does not mandate regulatory action.
Safety Information BulletinMaintenanceSafety MgmtLearjet 31Learjet 31ALearjet 35Learjet 35ALearjet 36Learjet 36A