Special Airworthiness Information Bulletin (SAIB) CE-11-21 is intended to inform you, owners, operators and maintenance personnel, of an airworthiness concern on Hawker Beechcraft Bonanza Model Series 33, 35, and 36; Baron Model Series 55, 56, 58, and 95; and Duke Model Series 60 regarding Trailing Edge Flaps and Flap Nose Rib Cracking.
Specifically, cracking could occur on the part number (P/N) 35-165050-84 flap nose rib.