Airworthiness Directive · Amendment 39-22025 · Hydraulic power
Embraer S.A. (Type Certificate Previously Held by Yaborã Indústria Aeronáutica S.A.) Airplanes
This AD applies to Embraer S.A. (Type Certificate Previously Held by Yaborã Indústria Aeronáutica S.A.) Model ERJ 190-300, and -400 airplanes, certificated in any category, as identified in Agência Nacional de Aviação Civil (ANAC) AD 2021-05-01, effective May 14, 2021 (ANAC AD 2021-05-01).
The FAA is adopting a new airworthiness directive (AD) for certain Embraer S.A. Model ERJ 190-300, and -400 airplanes. This AD was prompted by a report of premature failures of the alternating current motor pump (ACMP) 3A at hydraulic system #3 due to excessive wear of the ACMP tail bearing. This AD requires repetitive replacement of the hydraulic system ACMP 3A having a certain part number with a serviceable part, as specified in an Ag[ecirc]ncia Nacional de Avia[ccedil][atilde]o Civil (ANAC) 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, ANAC AD 2021-05-01.
(1) Where ANAC AD 2021-05-01 refers to its effective date, this AD requires using the effective date of this AD.
(2) The “Alternative methods of compliance (AMOCs)” section of ANAC AD 2021-05-01 does not apply to this AD.
(3) For the initial replacement required by paragraph (b) of ANAC AD 2021-05-01: If the accumulated flight hours on a hydraulic system ACMP 3A having part number 3033041-101 cannot be conclusively determined, this AD requires accomplishing that replacement within 300 flight hours after the effective date of this AD.
(4) Where paragraph (b) of ANAC AD 2021-05-01 specifies to repeat the replacement “before the hydraulic system ACMP 3A with [part number] PN 3033041-101 accumulates 2,700 flight hours,” for this AD use “before the hydraulic system ACMP 3A with PN 3033041-101 accumulates 2,700 flight hours since installation in the ACMP 3A position.”
(5) Where Note 3 of ANAC AD 2021-05-01 specifies “for the intent of this Airworthiness Directive, it is considered a serviceable ACMP 3A” for this AD use “for this AD a serviceable ACMP 3A is one listed in paragraphs (b)(i) through (iv) of ANAC AD 2021-05-01.”
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, Large Aircraft Section, International Validation Branch, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. In accordance with 14 CFR 39.19, send your request to your principal inspector or responsible Flight Standards Office, as appropriate. If sending information directly to the Large Aircraft Section, International Validation Branch, send it to the attention of the person identified in paragraph (j) of this AD. Information may be emailed to: 9-AVS-AIR-730-AMOC@faa.gov. Before using any approved AMOC, notify your appropriate principal inspector, or lacking a principal inspector, the manager of the responsible Flight Standards Office.
(2) Contacting the Manufacturer: For any requirement in this AD to obtain instructions from a manufacturer, the instructions must be accomplished using a method approved by the Manager, Large Aircraft Section, International Validation Branch, FAA; or ANAC; or ANAC's authorized Designee. If approved by the ANAC Designee, the approval must include the Designee's authorized signature.
