✈️Proposed Airworthiness Directive for ATR Airplanes by FAA
Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes
Summary
The FAA proposes to adopt a new airworthiness directive (AD) for certain ATR--GIE Avions de Transport R[eacute]gional Model ATR42- 500 and ATR72 airplanes. This proposed AD was prompted by an investigation indicating that an erroneous monitoring of the travel limitation unit (TLU) could occur when the airplane is flying above a certain speed as a result of the logic input from either air data computer (ADC) 1 or ADC2 input. This proposed AD would require modifying airplanes by installing one or two relays and associated wiring, and testing of the TLU monitoring logic. The FAA is proposing this AD to address the unsafe condition on these products.
Agencies
- Transportation Department
- Federal Aviation Administration
Business Impact
$$ - Med
The proposed airworthiness directive (AD) affects ATR Model airplanes, requiring compliance with installation and testing procedures which may incur costs. This AD has implications for operators' financial planning, maintenance budgets, and regulatory compliance efforts.