# Proposed AD FAA-2011-0476: Saab AB, Saab Aerosystems Model SAAB 2000 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-18-05
- Products: Saab AB, Saab Aerosystems
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 1, 2011, 76 FR 31508
- Comments due: July 18, 2011
- Became: [AD 2011-18-05](https://openairdocs.org/ad/2011-18-05)
- Docket: FAA-2011-0476 (https://www.regulations.gov/docket/FAA-2011-0476, where comments are filed)
- Project: 2010-NM-247-AD
- FR document: 2011-13505
- Official PDF: https://openairdocs.org/files/sha256/f7/22/f722818b48ada8a48435ddb5cc26e09351a6d85b2f7ce73ab11ea782cf3ddf72 (from https://www.govinfo.gov/content/pkg/FR-2011-06-01/pdf/2011-13505.pdf)
- Federal Register: https://www.federalregister.gov/documents/2011/06/01/2011-13505/airworthiness-directives-saab-ab-saab-aerosystems-model-saab-2000-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/47EC83035A52156D862578A200517F51.0001
- Page: https://openairdocs.org/proposed/FAA-2011-0476

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed 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:

Corrosion damage has been found on the aft pressure bulkhead of SAAB 2000 aeroplanes, located on the rear side of the bulkhead at the bottom outboard flange. Corrosion damage in this area can become the starting point for future crack initiation and propagation.

This condition, if not detected and corrected, could affect the structural integrity of the aft pressure bulkhead, possibly resulting in in-flight decompression of the fuselage and injury to occupants. * * * * *

The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Jun 1, 2011: Notice of proposed rulemaking (NPRM). (first notice), FR document 2011-13505, comments due Jul 18, 2011 (https://www.federalregister.gov/documents/2011/06/01/2011-13505/airworthiness-directives-saab-ab-saab-aerosystems-model-saab-2000-airplanes)

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.