# Proposed AD FAA-2008-0342: Airbus Model A318, A319, A320, and A321 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2008-22-10
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 25, 2008, 73 FR 15681
- Comments due: April 24, 2008
- Became: [AD 2008-22-10](https://openairdocs.org/ad/2008-22-10)
- Docket: FAA-2008-0342 (https://www.regulations.gov/docket/FAA-2008-0342, where comments are filed)
- Project: 2007-NM-305-AD
- FR document: E8-6051
- Official PDF: https://openairdocs.org/files/sha256/ef/66/ef667b0e62896d984d473392d0b321b7c5e724f2dc88247be792c38f087bd397 (from https://www.govinfo.gov/content/pkg/FR-2008-03-25/pdf/E8-6051.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/03/25/E8-6051/airworthiness-directives-airbus-model-a318-a319-a320-and-a321-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/4216F331BDF5EF4886257417004B0625.0001
- Page: https://openairdocs.org/proposed/FAA-2008-0342

## 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:

During planned maintenance visit on one A320 aircraft, a cross connection of the fire extinguishing circuit system was identified. In case of fire, this cross connection will activate (discharge) the wrong forward or aft cargo compartment fire extinguisher bottle.

Failure to activate the correct bottle when required is classified as potentially catastrophic.

* * * * *

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

## Notices in this docket

- Mar 25, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-6051, comments due Apr 24, 2008 (https://www.federalregister.gov/documents/2008/03/25/E8-6051/airworthiness-directives-airbus-model-a318-a319-a320-and-a321-series-airplanes)

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