# Proposed AD FAA-2010-1198: Saab AB, Saab Aerosystems Model SAAB 2000 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2011-05-13
- Products: Saab AB, Saab Aerosystems
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 14, 2010, 75 FR 77796
- Comments due: January 28, 2011
- Became: [AD 2011-05-13](https://openairdocs.org/ad/2011-05-13)
- Docket: FAA-2010-1198 (https://www.regulations.gov/docket/FAA-2010-1198, where comments are filed)
- Project: 2010-NM-145-AD
- FR document: 2010-31378
- Official PDF: https://openairdocs.org/files/sha256/58/da/58da06ee9eb448097f1cc79351e101ea1ddfff56c4c00aec1d60f4f62f206334 (from https://www.govinfo.gov/content/pkg/FR-2010-12-14/pdf/2010-31378.pdf)
- Federal Register: https://www.federalregister.gov/documents/2010/12/14/2010-31378/airworthiness-directives-saab-ab-saab-aerosystems-model-saab-2000-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/5B63BC2057ECC523862577F9004E0C93.0001
- Page: https://openairdocs.org/proposed/FAA-2010-1198

## 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 has been found on the rear spar upper cap of the horizontal stabilizer of SAAB 2000 aeroplanes. The affected areas are adjacent to the inboard elevator hinge where the electrical wiring harnesses are located and wired through the lightening holes. The upper spar cap is a primary structural element and is important to the structural integrity of the horizontal stabilizer.

Corrosion damage in these areas, if not detected and corrected, can result in a starting point for future crack propagation, which would impair the integrity of the horizontal stabilizer upper spar cap structure. * * * * * The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Dec 14, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-31378, comments due Jan 28, 2011 (https://www.federalregister.gov/documents/2010/12/14/2010-31378/airworthiness-directives-saab-ab-saab-aerosystems-model-saab-2000-airplanes)

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