# Proposed AD FAA-2007-26856: Airbus Model A300 B4-600, B4-600R, and F4-600R Series Airplanes, and Model C4-605R Variant F Airplanes (Collectively Called A300-600 Series Airplanes)

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2007-12-04
- Products: Airbus
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: January 19, 2007, 72 FR 2469
- Comments due: February 20, 2007
- Became: [AD 2007-12-04](https://openairdocs.org/ad/2007-12-04)
- Docket: FAA-2007-26856 (https://www.regulations.gov/docket/FAA-2007-26856, where comments are filed)
- Project: 2006-NM-125-AD
- FR document: E7-715
- Official PDF: https://openairdocs.org/files/sha256/84/8a/848a88afd640a774d76fd078be499fa96f3b7841b369ce6493f3adf6a7276852 (from https://www.govinfo.gov/content/pkg/FR-2007-01-19/pdf/E7-715.pdf)
- Federal Register: https://www.federalregister.gov/documents/2007/01/19/E7-715/airworthiness-directives-airbus-model-a300-b4-600-b4-600r-and-f4-600r-series-airplanes-and-model
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/758E407462A852BB86257268005BA7D2.0001
- Page: https://openairdocs.org/proposed/FAA-2007-26856

## Summary

The FAA proposes to supersede an existing airworthiness directive (AD) that applies to all Airbus Model A300-600 series airplanes. The existing AD currently requires inspections of the lower door surrounding structure to detect cracks and corrosion; inspections to detect cracking of the holes of the corner doublers, the fail-safe ring, and the door frames of the door structures; and repair if necessary. The existing AD also provides for optional terminating action for certain inspections. This proposed AD would retain all requirements of the existing AD, mandate the previously optional terminating action, reduce the applicability of the existing AD, and add repetitive inspections behind scuff plates for certain affected airplanes. This proposed AD results from a determination that further rulemaking is necessary to improve the fatigue behavior of the cabin door surroundings. We are proposing this AD to prevent corrosion between the scuff plates at exit and cargo doors and fatigue cracks originating from certain fastener holes located in adjacent structure, which could result in reduced structural integrity of the door surroundings.

## Notices in this docket

- Jan 19, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-715, comments due Feb 20, 2007 (https://www.federalregister.gov/documents/2007/01/19/E7-715/airworthiness-directives-airbus-model-a300-b4-600-b4-600r-and-f4-600r-series-airplanes-and-model)

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