# Proposed AD 99-NM-86-AD: Airbus Model A300 B2, A300 B4, A300 B4-600, and A300 B4-600R Series Airplanes; and Model A300 F4-605R Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2002-07-05
- Products: Airbus Industrie
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking; reopening of comment period.
- Published: January 4, 2002, 67 FR 530
- Comments due: January 29, 2002
- Became: [AD 2002-07-05](https://openairdocs.org/ad/2002-07-05)
- Docket: 99-NM-86-AD
- FR document: 02-201
- Official PDF: https://openairdocs.org/files/sha256/95/f5/95f50e32d9919ccbd62e6a22e986a41d40a40b98b24395bd79b3304367f1daf0 (from https://www.govinfo.gov/content/pkg/FR-2002-01-04/pdf/02-201.pdf)
- Federal Register: https://www.federalregister.gov/documents/2002/01/04/02-201/airworthiness-directives-airbus-model-a300-b2-a300-b4-a300-b4-600-and-a300-b4-600r-series-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/745CE7D8B4DE8C0586256B3A00503852.0001
- Page: https://openairdocs.org/proposed/99-NM-86-AD

## Summary

This document revises an earlier proposed airworthiness directive (AD), applicable to all Model A300 B2, A300 B4, A300 B4-600, and A300 B4-600R series airplanes, that would have required repetitive inspections for cracking of certain fittings, corrective action if necessary, and, for certain airplanes, a modification; and would have provided for optional terminating action for the repetitive inspections. This new action revises the proposed rule by including additional airplanes in the applicability. The actions specified by this new proposed AD are intended to detect and correct propagation of cracks on the frame 40 aft fittings due to local stress concentrations at the upper flange runout of frame 40, which could result in reduced structural integrity of the airplane. This action is intended to address the identified unsafe condition.

## Notices in this docket

- Jan 9, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-511, comments due Feb 8, 2001 (https://www.federalregister.gov/documents/2001/01/09/01-511/airworthiness-directives-airbus-model-a300-b2-and-a300-b4-series-airplanes-and-model-a300-b4-600)
- Aug 22, 2001: Supplemental notice of proposed rulemaking; reopening of comment period., FR document 01-21106, comments due Sep 17, 2001 (https://www.federalregister.gov/documents/2001/08/22/01-21106/airworthiness-directives-airbus-model-a300-b2-a300-b4-a300-b4-600-and-a300-b4-600r-series-airplanes)
- Jan 4, 2002: Supplemental notice of proposed rulemaking; reopening of comment period., FR document 02-201, comments due Jan 29, 2002 (https://www.federalregister.gov/documents/2002/01/04/02-201/airworthiness-directives-airbus-model-a300-b2-a300-b4-a300-b4-600-and-a300-b4-600r-series-airplanes)

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