Airworthiness Directive · Amendment 39-21481 · Ice and rain protection
ATR-GIE Avions de Transport Régional Airplanes
This AD applies to all ATR-GIE Avions de Transport Régional Model ATR42-200, -300, -320, and -500 airplanes; and Model ATR72-101, -102, -201, -202, -211, -212, and -212A airplanes; certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all ATR-GIE Avions de Transport R[eacute]gional Model ATR42 airplanes and Model ATR72 airplanes. This AD was prompted by in-service data, which revealed that the minimum operating airspeeds in severe icing conditions, computed to provide adequate stall margins, do not provide sufficient margins to stall speeds at high bank angle while exiting severe icing conditions. This AD requires revising the existing aircraft flight manual (AFM) and applicable corresponding operational procedures to provide emergency procedures and limitations for operating in severe icing conditions, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
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 2020-0177, dated August 11, 2020 (EASA AD 2020-0177).
(1) Where EASA AD 2020-0177 refers to its effective date, this AD requires using the effective date of this AD.
(2) The “Remarks” section of EASA AD 2020-0177 does not apply to this AD.
(3) Paragraph (1) of EASA AD 2020-0177 specifies amending “the AFM [aircraft flight manual] with the data as specified in Table 1,” but this AD requires amending “the existing AFM and applicable corresponding operational procedures to incorporate the limitations and procedures specified in Table 1 of EASA AD 2020-0177.”
(4) The provisions specified in paragraphs (3) and (4) of EASA AD 2020-0177 do not apply to this AD.
(1) Accomplishing the actions required by this AD terminates the requirements of paragraphs (a)(1) and (2) of AD 96-09-28 for that airplane.
(2) Accomplishing the actions required by this AD terminates all requirements of AD 99-09-19 for that airplane.
