# Proposed AD FAA-2012-0425: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2013-19-22
- Products: Boeing
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period.
- Published: May 6, 2013, 78 FR 26286
- Comments due: June 20, 2013
- Became: [AD 2013-19-22](https://openairdocs.org/ad/2013-19-22)
- Docket: FAA-2012-0425 (https://www.regulations.gov/docket/FAA-2012-0425, where comments are filed)
- Project: 2011-NM-273-AD
- FR document: 2013-10652
- Official PDF: https://openairdocs.org/files/sha256/46/10/46103d7d56cd852bdbd700c32a2dbe26fe5544c6f51cfba2675ab6e866c383cf (from https://www.govinfo.gov/content/pkg/FR-2013-05-06/pdf/2013-10652.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/05/06/2013-10652/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/16BE0A8D8DC0439C86257B63004BF8FD.0001
- Page: https://openairdocs.org/proposed/FAA-2012-0425

## Summary

We are revising an earlier proposed airworthiness directive (AD) for all The Boeing Company Model 717-200 airplanes. That NPRM proposed requiring repetitive inspections for cracking of the overwing frames, and corrective actions if necessary. That NPRM was prompted by multiple reports of cracks of overwing frames. This action revises that NPRM by revising the initial compliance time and providing an optional modification that would extend the compliance time for the next repetitive inspection. We are proposing this supplemental NPRM to detect and correct such cracking, which could sever a frame and increase the loading of adjacent frames, and could result in damage to the adjacent structure and consequent loss of structural integrity of the airplane. Since certain actions impose an additional burden over that proposed in the NPRM, we are reopening the comment period to allow the public the chance to comment on these proposed changes.

## Notices in this docket

- May 9, 2012: Notice of proposed rulemaking (NPRM). (first notice), FR document 2012-11022, comments due Jun 25, 2012 (https://www.federalregister.gov/documents/2012/05/09/2012-11022/airworthiness-directives-the-boeing-company-airplanes)
- May 6, 2013: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period., FR document 2013-10652, comments due Jun 20, 2013 (https://www.federalregister.gov/documents/2013/05/06/2013-10652/airworthiness-directives-the-boeing-company-airplanes)

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