AD: Airbus SAS Airplanes | Aero-News Network
Aero-News Network
RSS icon RSS feed
podcast icon MP3 podcast
Subscribe Aero-News e-mail Newsletter Subscribe

Airborne Unlimited -- Most Recent Daily Episodes

Episode Date

Airborne-Monday

Airborne-Tuesday

Airborne-Wednesday Airborne-Thursday

Airborne-Friday

Airborne On YouTube

Airborne-Unlimited-07.07.25

Airborne-NextGen-07.08.25

AirborneUnlimited-07.09.25

Airborne-FlightTraining-07.10.25

AirborneUnlimited-07.11.25

Mon, Dec 27, 2021

AD: Airbus SAS Airplanes

AD 2021-24-20 Prompted By Reports Of Slat Transmission Jams Caused By Frozen Slat Geared Rotary Actuators

The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes.

This AD was prompted by reports of slat transmission jams caused by frozen slat geared rotary actuators (SGRAs) at slat 5 track 12. This AD requires repetitive water drainage and plug cleaning of the left- and right-hand SGRAs having a certain part number installed on slat 5 track 12 with certain functional item numbers, 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. This AD is effective January 27, 2022.

Supplementary Information: EASA, which is the Technical Agent for the Member States of the European Union, has issued EASA AD 2021-0130R1, dated June 10, 2021 (EASA AD 2021-0130R1) (also referred to as the MCAI), to correct an unsafe condition for all Airbus SAS Model A350-941 and -1041 airplanes.

The FAA issued a notice of proposed rulemaking (NPRM) to amend 14 CFR part 39 by adding an AD that would apply to all Airbus SAS Model A350-941 and -1041 airplanes. The NPRM published in the Federal Register on September 23, 2021 (86 FR 52848). The NPRM was prompted by reports of slat transmission jams caused by frozen SGRAs at slat 5 track 12. Further investigation showed that the jams occur when water in the SGRA freezes due to low temperature during cruise and insufficient water drainage. The NPRM proposed to require repetitive water drainage and plug cleaning of the left- and right-hand SGRAs having a certain part number installed on slat 5 track 12 with certain functional item numbers, as specified in EASA AD 2021-0130R1.

The FAA is issuing this AD to address SGRA jams, which could result in reduced control of the airplane. See the MCAI for additional background information.

FMI: www.regulations.gov

Advertisement

More News

NTSB Final Report: Aviat A1

Airplane Bounced About 3 Ft Then Touched Back Down And Then, With No Brakes Applied, The Airplane Began Veering To The Left Analysis: The pilot entered the airport traffic pattern >[...]

ANN's Daily Aero-Linx (07.08.25)

Aero Linx: British Microlight Aircraft Association (BMAA) The primary focus within all aviation activity is SAFETY. In all aspects of our sport SAFETY must come first, whether it b>[...]

Classic Aero-TV: Fly Corvair’s Reliable Engine Alternative

From SnF25 (YouTube Edition): William Wynne Builds Practical Aircraft Engines on the Corvair Platform Seeking an affordable alternative to the traditional aircraft engine options, >[...]

ANN FAQ: Contributing To Aero-TV

How To Get A Story On Aero-TV News/Feature Programming How do I submit a story idea or lead to Aero-TV? If you would like to submit a story idea or lead, please contact Jim Campbel>[...]

Classic Aero-TV: CiES Fuel-Quantity and e-Throttle Systems Praised

From 2023 (YouTube Edition): Bridge of CiES CiES Inc. is a Bend, Oregon-based designer and manufacturer of modular embedded aircraft systems and sensors. The company’s fuel-l>[...]

blog comments powered by Disqus



Advertisement

Advertisement

Podcasts

Advertisement

© 2007 - 2025 Web Development & Design by Pauli Systems, LC