# Proposed AD FAA-2006-26324: Airbus Model A330 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2007-06-12
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 15, 2006, 71 FR 66472
- Comments due: December 15, 2006
- Became: [AD 2007-06-12](https://openairdocs.org/ad/2007-06-12)
- Docket: FAA-2006-26324 (https://www.regulations.gov/docket/FAA-2006-26324, where comments are filed)
- Project: 2006-NM-214-AD
- FR document: E6-19228
- Official PDF: https://openairdocs.org/files/sha256/fc/37/fc375f1672a54e9178cff74ed58a5c1c060b50050dd96c7f3479fa4d9b127d6f (from https://www.govinfo.gov/content/pkg/FR-2006-11-15/pdf/E6-19228.pdf)
- Federal Register: https://www.federalregister.gov/documents/2006/11/15/E6-19228/airworthiness-directives-airbus-model-a330-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/648948B68D0A6FD186257227005BB4C0.0001
- Page: https://openairdocs.org/proposed/FAA-2006-26324

## Summary

The FAA proposes to supersede an existing airworthiness directive (AD) that applies to certain Airbus Model 330-300 series airplanes. The existing AD currently requires reinforcement of the structure of the center fuselage by installing external stiffeners (butt straps) at frame (FR) 53.3 on the fuselage skin between left-hand (LH) and right-hand (RH) stringer (STR) 13, and related investigative and corrective actions. This proposed AD would require additional reinforcement of the structure of the center fuselage by installing external stiffeners (butt straps) at frame FR53.3 on the fuselage skin between LH and RH STR13, and related investigative and other specified actions. This proposed AD also adds airplanes to the applicability. This proposed AD results from cracking found at the circumferential joint of FR53.3. We are proposing this AD to prevent fatigue cracking of the fuselage, which could result in reduced structural integrity of the fuselage.

## Notices in this docket

- Nov 15, 2006: Notice of proposed rulemaking (NPRM). (first notice), FR document E6-19228, comments due Dec 15, 2006 (https://www.federalregister.gov/documents/2006/11/15/E6-19228/airworthiness-directives-airbus-model-a330-airplanes)

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