# Proposed AD FAA-2017-1022: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-17-03
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 17, 2017, 82 FR 54302
- Comments due: January 2, 2018
- Became: [AD 2018-17-03](https://openairdocs.org/ad/2018-17-03)
- Docket: FAA-2017-1022 (https://www.regulations.gov/docket/FAA-2017-1022, where comments are filed)
- FR document: 2017-24809
- Official PDF: https://openairdocs.org/files/sha256/68/c7/68c7439d15b42569c62d32e1c5343e733bd4a2d11c7fccbf9fe8a970fcda1e06 (from https://www.govinfo.gov/content/pkg/FR-2017-11-17/pdf/2017-24809.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/11/17/2017-24809/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CC674D63687603B9862581DB005D6F62.0001
- Page: https://openairdocs.org/proposed/FAA-2017-1022

## Summary

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 787-8 and 787-9 airplanes. This proposed AD was prompted by reports of failures of the lip heater assemblies of the inlet ice protection system of the cabin air compressor (CAC) due to chafing. This proposed AD would require changing the airplane electrical connectors and the routes of certain wire bundles, and installing new or modified left and right CAC inlet duct assemblies. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Nov 17, 2017: Notice of proposed rulemaking (NPRM). (first notice), FR document 2017-24809, comments due Jan 2, 2018 (https://www.federalregister.gov/documents/2017/11/17/2017-24809/airworthiness-directives-the-boeing-company-airplanes)

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