# Airworthiness Directives; Airbus Model A340-541 and -642 Airplanes
> **Rule** · Final rule; request for comments. · Published 2011-04-21 · Effective 2011-05-06 · 76 FR 22308
## Document
- **Document number:** 2011-9277
- **Category:** airworthiness
- **Manufacturer:** Airbus Model A340-541 and -642
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 76 FR 22308
- **Publication date:** 2011-04-21
- **Effective date:** 2011-05-06
- **FAA docket:** Docket No. FAA-2011-0310
## Abstract

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: * * * * * * * * [S]ome Allowable Damage Limits and Repairs published in SRM Chapters 57-61-12 PB101 and 57-61-12 PB201 were de-validated starting from the SRM revision issued on January 2009. The terminology "De-validated SRM" used in this AD text refers to the SRM chapters mentioned above. In order to prevent complete inner aileron split due to possible failure or disbonding of the repairs on the inner aileron panels performed as per "devalidated SRM", which may result in flutter coupling of the free aileron part, this AD requires a one time inspection of the inner aileron panels to identify the presence of "de-validated SRM" repairs and, if necessary, to apply the associated corrective actions [repair].

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2011/04/21/2011-9277/airworthiness-directives-airbus-model-a340-541-and--642-airplanes)
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