Follows In-Flight Failure Of Flap Torque Tube
The FAA has issued a Special Airworthiness Information Bulletin (SAIB) for owners, operators, maintenance technicians, and inspectors related to an airworthiness concern for Air Tractor, Inc. (Air Tractor) Models AT-802/802A/602/504/503/503A/502/502A/502B/501/402/402A/402B /401/ 401A/ /401B/400/400A/302/301/300/250 airplanes (under Type Certificate Data Sheets A9SW, A17SW, and A19SW).