# Proposed AD FAA-2021-0545: Airbus SAS Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2021-22-18
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: July 6, 2021, 86 FR 35413
- Comments due: August 20, 2021
- Became: [AD 2021-22-18](https://openairdocs.org/ad/2021-22-18)
- Docket: FAA-2021-0545 (https://www.regulations.gov/docket/FAA-2021-0545, where comments are filed)
- Project: MCAI-2021-00071-T
- FR document: 2021-14269
- Official PDF: https://openairdocs.org/files/sha256/48/b5/48b582f3ea9f4548f8f645f4b899eb85032e44c61b51401baf1e9283228b4650 (from https://www.govinfo.gov/content/pkg/FR-2021-07-06/pdf/2021-14269.pdf)
- Federal Register: https://www.federalregister.gov/documents/2021/07/06/2021-14269/airworthiness-directives-airbus-sas-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/E579EC01CD60FA088625870A007921B2.0001
- Page: https://openairdocs.org/proposed/FAA-2021-0545

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes. This proposed AD was prompted by a report of a broken forward guide arm found during a passenger door emergency opening test. Investigation results indicated that the opening speed of the door was higher than expected, likely caused by a reduced damping due to oil leakage of the passenger door damper emergency opening actuator (DEOA). This proposed AD would require repetitively replacing certain forward and aft guide arms on the passenger door, inspecting the forward and aft guide arm support brackets for damage, modifying certain DEOAs, and repair if necessary. This proposed AD would also provide an optional terminating action for the repetitive replacements, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Jul 6, 2021: Notice of proposed rulemaking (NPRM). (first notice), FR document 2021-14269, comments due Aug 20, 2021 (https://www.federalregister.gov/documents/2021/07/06/2021-14269/airworthiness-directives-airbus-sas-airplanes)

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