Airworthiness directives › 2021-19-13
AD 2021-19-13 Airworthiness Directives; ATR-GIE Avions de Transport Régional Airplanes
Models named: ATR42-500, ATR72-212A. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to all ATR-GIE Avions de Transport Régional Model ATR42-500 and ATR72-212A airplanes, certificated in any category.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified in paragraph (h) of this AD: Comply with all required actions and compliance times specified in, and in accordance with, European Union Aviation Safety Agency (EASA) AD 2021-0013, dated January 13, 2021 (EASA AD 2021-0013).
Unsafe condition
This AD was prompted by reports that Thales global positioning system (GPS) satellite based augmentation system (SBAS) receivers provided, under certain conditions, erroneous outputs on aircraft positions. The FAA is issuing this AD to address the potential for these erroneous outputs, which could result in controlled flight into terrain, and consequent loss of control of the airplane.
Affected ADs
This AD affects AD 2020-08-02, Amendment 39-21108 (85 FR 20586, April 14, 2020) (AD 2020-08-02).
Read the original on the Federal Register →
You just looked this one up by hand
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1