AD 2021-10-20 Prompted By Reports Of Temporary Loss Of All Display Units

The FAA is adopting a new airworthiness directive (AD) for certain ATR-GIE Avions de Transport Regional Model ATR42-500 and ATR72-212A airplanes. This AD was prompted by reports of temporary loss of all display units and the integrated electronic standby instrument (IESI). This AD requires revising the existing aircraft flight manual (AFM) and applicable corresponding operational procedures to update a systems limitation, limiting dispatch with certain equipment inoperative, performing an operational test of a certain contactor and an electrical test of a certain battery toggle switch, and corrective actions if necessary, as specified in a European Union Aviation Safety Agenc

AD 2021-09-16 Requires Revising The Existing Airplane Flight Manual

The FAA is adopting a new airworthiness directive (AD) for certain Bombardier, Inc., Model BD-100-1A10 airplanes. This AD was prompted by a report of a number of low altitude engine surge incidents during takeoff. This AD requires revising the existing airplane flight manual and applicable corresponding operational procedures to provide the flightcrew with procedures to require the engine bleeds to be ON during takeoff. The FAA is issuing this AD to address the unsafe condition on these products. This AD becomes effective June 1, 2021.