# Proposed AD FAA-2016-3697: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2017-20-05
- Products: Boeing
- Product type: Aircraft
- Action: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period.
- Published: May 5, 2017, 82 FR 21146
- Comments due: June 19, 2017
- Became: [AD 2017-20-05](https://openairdocs.org/ad/2017-20-05)
- Docket: FAA-2016-3697 (https://www.regulations.gov/docket/FAA-2016-3697, where comments are filed)
- Project: 2015-NM-143-AD
- FR document: 2017-07938
- Official PDF: https://openairdocs.org/files/sha256/83/08/83084121409c8833584a782f1125484a81ddd407f50e0cfce966cc2e3a3e6e04 (from https://www.govinfo.gov/content/pkg/FR-2017-05-05/pdf/2017-07938.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/05/05/2017-07938/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A2433EA324F6CC6E862581170049378D.0001
- Page: https://openairdocs.org/proposed/FAA-2016-3697

## Summary

We are revising an earlier proposed airworthiness directive (AD) that proposed to supersede AD 2011-01-15, which applies to certain The Boeing Company Model 757-200, -200CB, and -300 series airplanes. AD 2011-01-15 requires repetitive inspections for cracking of the fuselage skin of the crown skin panel along the chem-milled step at certain stringers, and repair, if necessary. This action revises the notice of proposed rulemaking (NPRM) by reducing the compliance time for certain inspections. We are proposing this AD to address the unsafe condition on these products. Since these 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

- Feb 18, 2016: Notice of proposed rulemaking (NPRM). (first notice), FR document 2016-03297, comments due Apr 4, 2016 (https://www.federalregister.gov/documents/2016/02/18/2016-03297/airworthiness-directives-the-boeing-company-airplanes)
- May 5, 2017: Supplemental notice of proposed rulemaking (SNPRM); reopening of comment period., FR document 2017-07938, comments due Jun 19, 2017 (https://www.federalregister.gov/documents/2017/05/05/2017-07938/airworthiness-directives-the-boeing-company-airplanes)

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