# Proposed AD FAA-2017-0246: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2018-25-11
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: April 10, 2017, 82 FR 17154
- Comments due: May 25, 2017
- Became: [AD 2018-25-11](https://openairdocs.org/ad/2018-25-11)
- Docket: FAA-2017-0246 (https://www.regulations.gov/docket/FAA-2017-0246, where comments are filed)
- Project: 2017-NM-011-AD
- FR document: 2017-06800
- Official PDF: https://openairdocs.org/files/sha256/52/65/5265dd7ac75edfe811e384bdbf42442366c9ae8c6b2b4ccf57e7537accdff21f (from https://www.govinfo.gov/content/pkg/FR-2017-04-10/pdf/2017-06800.pdf)
- Federal Register: https://www.federalregister.gov/documents/2017/04/10/2017-06800/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/B510DB8A6F724F74862580FE00522298.0001
- Page: https://openairdocs.org/proposed/FAA-2017-0246

## Summary

We propose to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 777-200 and -300 series airplanes equipped with Rolls-Royce Model RB211-Trent 800 engines. This proposed AD was prompted by reports of inadequate clearance between the thermal protection system (TPS) insulation blankets and the electronic engine control (EEC) wiring, which resulted in damaged wires. This proposed AD would require repetitive inspections of the EEC wire bundles and clips, and corrective actions if necessary. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Apr 10, 2017: Notice of proposed rulemaking (NPRM). (first notice), FR document 2017-06800, comments due May 25, 2017 (https://www.federalregister.gov/documents/2017/04/10/2017-06800/airworthiness-directives-the-boeing-company-airplanes)

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