Airworthiness Directive · Amendment 39-21225 · Flight controls
Airbus SAS Airplanes
Superseded. A later AD replaced this one: AD 2022-25-02. Comply with the one in force.
This AD applies to all Airbus SAS Model A350-941 and -1041 airplanes, certificated in any category.
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes. This AD was prompted by a report of a slat system jam during landing. This AD requires a one- time health check of the slat power control unit (PCU) torque sensing unit (TSU) for discrepancies, and corrective actions if necessary; a detailed inspection of the left-hand (LH) and right-hand (RH) slat transmission systems for discrepancies, and corrective actions if necessary; and LH and RH track 12 slat gear rotary actuator (SGRA) water drainage and vent plug cleaning (which includes an inspection for moisture), 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 2020-0163R1, dated August 7, 2020 (“EASA AD 2020-0163R1”).
(1) Where EASA AD 2020-0163R1 refers to its effective date, this AD requires using the effective date of this AD.
(2) Where EASA AD 2020-0163R1 refers to July 27, 2020, this AD requires using the effective date of this AD.
(3) Where EASA AD 2020-0163R1 requires certain actions to be done “before exceeding the thresholds specified in the AOT [alert operators transmission],” this AD requires those actions to be done “at the applicable compliance time specified in paragraph 4.2.3.1 of the AOT.”
(4) The “Remarks” section of EASA AD 2020-0163R1 does not apply to this AD.
(5) Paragraph (5) of EASA AD 2020-0163R1 specifies to report the results of the actions specified in paragraph (1) of EASA AD 2020-0163R1 to Airbus within a certain compliance time. For this AD, report the results at the applicable time specified in paragraph (h)(5)(i) or (ii) of this AD.
(i) If the action was done on or after the effective date of this AD: Submit the report within 30 days after the inspection.
(ii) If the action was done before the effective date of this AD: Submit the report within 30 days after the effective date of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
