# Proposed AD FAA-2007-27739: Airbus Model A330 Airplanes; and Model A340-200 and -300 Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2008-25-02
- Products: Airbus
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period.
- Published: June 17, 2008, 73 FR 34228
- Comments due: July 14, 2008
- Became: [AD 2008-25-02](https://openairdocs.org/ad/2008-25-02)
- Docket: FAA-2007-27739 (https://www.regulations.gov/docket/FAA-2007-27739, where comments are filed)
- Project: 2006-NM-250-AD
- FR document: E8-13568
- Official PDF: https://openairdocs.org/files/sha256/e1/3e/e13ee12f75a815758a958d4ada914be6b1a103acf00ea6900b51c8c87e87ba31 (from https://www.govinfo.gov/content/pkg/FR-2008-06-17/pdf/E8-13568.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/06/17/E8-13568/airworthiness-directives-airbus-model-a330-airplanes-and-model-a340-200-and--300-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1D29B97C161A39928625746B004CA4B5.0001
- Page: https://openairdocs.org/proposed/FAA-2007-27739

## Summary

We are revising an original NPRM for the products listed above. This action revises the original NPRM by expanding the scope. 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: * * * * *

The aim of * * * [Special Federal Aviation Regulation (SFAR) 88] is to require all holders of type certificates * * * to carry out a definition review against explosion hazards.

The unsafe condition is the potential of ignition sources inside fuel tanks, which, in combination with flammable fuel vapors, could result in fuel tank explosions and consequent loss of the airplane. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Mar 29, 2007: Notice of proposed rulemaking (NPRM). (first notice), comments due Apr 29, 2007 (https://drs.faa.gov/browse/excelExternalWindow/3300BDE4EA43764D862572AE004EBDC1.0001)
- Jun 17, 2008: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period., FR document E8-13568, comments due Jul 14, 2008 (https://www.federalregister.gov/documents/2008/06/17/E8-13568/airworthiness-directives-airbus-model-a330-airplanes-and-model-a340-200-and--300-airplanes)

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