AD 2021-19-13
Effective 11/09/2021 · Published 10/05/2021
Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes
Summary
The FAA is adopting a new airworthiness directive (AD) for all ATR-GIE Avions de Transport R[eacute]gional Model ATR42-500 and ATR72- 212A airplanes. This AD was prompted by reports indicating that certain Thales global positioning system (GPS) satellite based augmentation system (SBAS) receivers provided, under certain conditions, erroneous outputs on aircraft positions. This AD requires replacing affected GPS SBAS…