# Proposed AD FAA-2016-9501: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2017-15-01
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 20, 2016, 81 FR 92740
- Comments due: February 3, 2017
- Became: [AD 2017-15-01](https://openairdocs.org/ad/2017-15-01)
- Docket: FAA-2016-9501 (https://www.regulations.gov/docket/FAA-2016-9501, where comments are filed)
- Project: 2016-NM-137-AD
- FR document: 2016-30026
- Official PDF: https://openairdocs.org/files/sha256/81/c3/81c37cf41ba5804d2679658039c2605297c5cd592e98844e01025d4217fad64c (from https://www.govinfo.gov/content/pkg/FR-2016-12-20/pdf/2016-30026.pdf)
- Federal Register: https://www.federalregister.gov/documents/2016/12/20/2016-30026/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/7160DD11D8D5CC1D8625808F005177C8.0001
- Page: https://openairdocs.org/proposed/FAA-2016-9501

## Summary

We propose to adopt a new airworthiness directive (AD) for The Boeing Company Model 777 airplanes. This proposed AD was prompted by reports of uncommanded altitude display changes in the mode control panel (MCP) altitude window. This proposed AD would require replacing the existing MCP with a new MCP having a different part number. We are proposing this AD to address the unsafe condition on these products.

## Notices in this docket

- Dec 20, 2016: Notice of proposed rulemaking (NPRM). (first notice), FR document 2016-30026, comments due Feb 3, 2017 (https://www.federalregister.gov/documents/2016/12/20/2016-30026/airworthiness-directives-the-boeing-company-airplanes)

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