# Proposed AD FAA-2017-0249: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2017-22-12
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 13, 2017, 82 FR 17773
- Comments due: May 30, 2017
- Became: [AD 2017-22-12](https://openairdocs.org/ad/2017-22-12)
- Docket: FAA-2017-0249 (https://www.regulations.gov/docket/FAA-2017-0249, where comments are filed)
- Project: 2016-NM-138-AD
- FR document: 2017-07440
- Official PDF: https://openairdocs.org/files/sha256/52/62/52622f7bb75e635180dfe9db8266e8da52682ae42f83709e1403aab23cf2169c (from https://www.govinfo.gov/content/pkg/FR-2017-04-13/pdf/2017-07440.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/04/13/2017-07440/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/12ADBF25B313E38D86258101004C190D.0001
- Page: https://openairdocs.org/proposed/FAA-2017-0249

## Summary

We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 757-200, -200PF, and -200CB series airplanes. This proposed AD was prompted by reports of slats disbonding on airplanes on which the terminating actions of AD 2005-07-08 had been performed. We have also received reports of slats disbonding on airplanes outside of the applicability of AD 90-23-06, AD 91-22-51, and AD 2005-07-08. This proposed AD would require determining the type of trailing edge slat wedges of the leading edge slats, repetitive inspections for disbonding on certain trailing edge slat wedges, and corrective actions, if necessary. This proposed AD would also provide an optional terminating action for the repetitive inspections. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 13, 2017: Notice of proposed rulemaking (NPRM). (first notice), FR document 2017-07440, comments due May 30, 2017 (https://www.federalregister.gov/documents/2017/04/13/2017-07440/airworthiness-directives-the-boeing-company-airplanes)

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