# Proposed AD 99-NM-337-AD: Airbus Model A300 and A300-600 Series Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-05-07
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 30, 1999, 64 FR 73439
- Comments due: January 31, 2000
- Became: [AD 2000-05-07](https://openairdocs.org/ad/2000-05-07)
- Docket: 99-NM-337-AD
- FR document: 99-33949
- Official PDF: https://openairdocs.org/files/sha256/1a/a9/1aa970ec6dbc86d4ccd9019d73de0835f05a0ebb776f7f74cf69277a38a84631 (from https://www.govinfo.gov/content/pkg/FR-1999-12-30/pdf/99-33949.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/12/30/99-33949/airworthiness-directives-airbus-model-a300-and-a300-600-series-airplanes
- Page: https://openairdocs.org/proposed/99-NM-337-AD

## Summary

This document proposes the supersedure of an existing airworthiness directive (AD), applicable to certain Airbus Model A300 and A300-600 series airplanes, that currently requires repetitive inspections to detect cracks in Gear Rib 5 of the main landing gear (MLG) attachment fittings at the lower flange, and repair, if necessary. That AD also requires modification of Gear Rib 5 of the MLG attachment fittings, which constitutes terminating action for the repetitive inspections. This action would expand the current inspection area for certain airplanes. This proposal is prompted by issuance of mandatory continuing airworthiness information by a foreign civil airworthiness authority. The actions specified by the proposed AD are intended to prevent fatigue cracking of the MLG attachment fittings, which could result in reduced structural integrity of the airplane.

## Notices in this docket

- Dec 30, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-33949, comments due Jan 31, 2000 (https://www.federalregister.gov/documents/1999/12/30/99-33949/airworthiness-directives-airbus-model-a300-and-a300-600-series-airplanes)

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