# Proposed AD FAA-2005-20474: Airbus Model A300 B2-203 and B4-203 Series Airplanes; Model A310 Series Airplanes; Model A300 B4-600, B4- 600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600)

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2005-14-01
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 3, 2005, 70 FR 10339
- Comments due: April 4, 2005
- Became: [AD 2005-14-01](https://openairdocs.org/ad/2005-14-01)
- Docket: FAA-2005-20474 (https://www.regulations.gov/docket/FAA-2005-20474, where comments are filed)
- Project: 2004-NM-221-AD
- FR document: 05-4078
- Official PDF: https://openairdocs.org/files/sha256/9d/f0/9df01cf9886d1e7acf6063a581d2b7c62652c7f479892248520f1aef055a1b65 (from https://www.govinfo.gov/content/pkg/FR-2005-03-03/pdf/05-4078.pdf)
- Federal Register: https://www.federalregister.gov/documents/2005/03/03/05-4078/airworthiness-directives-airbus-model-a300-b2-203-and-b4-203-series-airplanes-model-a310-series
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D30386A6C75226CE86256FB900561EAA.0001
- Page: https://openairdocs.org/proposed/FAA-2005-20474

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus transport category airplanes. This proposed AD would require an inspection to determine if the suspect part numbers (P/N) and serial numbers of certain Thales Avionics equipment is installed, and replacement of any suspect part with a modified part having a new P/N. This proposed AD is prompted by reports of loss of the digital distance radio magnetic indicator and subsequent loss of both very high frequency omnidirectional range indicators, both distance measuring equipment, and one centralized maintenance computer. We are proposing this AD to prevent loss of navigation indications on the primary flight display requiring continuation of the flight on emergency instruments, which could lead to reduced ability to control the airplane in adverse conditions.

## Notices in this docket

- Mar 3, 2005: Notice of proposed rulemaking (NPRM). (first notice), FR document 05-4078, comments due Apr 4, 2005 (https://www.federalregister.gov/documents/2005/03/03/05-4078/airworthiness-directives-airbus-model-a300-b2-203-and-b4-203-series-airplanes-model-a310-series)

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