Airworthiness Directive · Amendment 39-21704 · Turbine/turboprop engine
Yaborã Indústria Aeronáutica S.A. (Type Certificate Previously Held by Embraer S.A.) Airplanes
This AD applies to Yaborã Indústria Aeronáutica S.A. (type certificate previously held by Embraer S.A.) Model ERJ 190-400 airplanes, certificated in any category, as identified in Agência Nacional de Aviação Civil (ANAC) AD 2020-07-01R01, effective March 26, 2021 (ANAC AD 2020-07-01R01).
The FAA is superseding Airworthiness Directive (AD) 2020-26- 02, which applied to certain Yabor[atilde] Ind[uacute]stria Aeron[aacute]utica S.A. (type certificate previously held by Embraer S.A.) Model ERJ 190-400 airplanes. AD 2020-26-02 required amending the existing airplane flight manual (AFM) to incorporate a new limitation and revise certain normal procedures. This AD retains those requirements and also requires upgrading the electronic engine control (EEC) software, as specified in an Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC) AD, which is incorporated by reference. This AD was prompted by a report of an in-flight shutdown (IFSD) due in part to failure in the low-pressure compressor (LPC) rotor 1 during operation in high altitude at high thrust settings, and by the development of updated EEC software, which would terminate the requirement to amend the existing AFM. 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, ANAC AD 2020-07-01R01.
(1) Where ANAC AD 2020-07-01R01 refers to “the effective date of [ANAC] AD 2020-07-01,” this AD requires using January 4, 2021 (the effective date of FAA AD 2020-26-02).
(2) Where ANAC AD 2020-07-01R01 says to “upgrade de EEC software,” this AD requires to “upgrade the EEC software.”
(3) Where ANAC AD 2020-07-01R01 refers to its effective date, this AD requires using the effective date of this AD.
(4) The “Alternative method of compliance (AMOCs)” section of ANAC AD 2020-07-01R01 does not apply to this AD.
(5) Where paragraph (c)(2) of ANAC AD 2020-07-01R01 requires removing the airplane flight manual (AFM) amendments, this AD requires that the amendments to the existing AFM be removed before further flight after the EEC software has been updated.
