# Proposed AD FAA-2016-0463: The Boeing Company Airplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2016-17-10
- Products: Boeing
- Product type: Aircraft
- Action: Notice of proposed rulemaking (NPRM).
- Published: February 18, 2016, 81 FR 8164
- Comments due: April 4, 2016
- Became: [AD 2016-17-10](https://openairdocs.org/ad/2016-17-10)
- Docket: FAA-2016-0463 (https://www.regulations.gov/docket/FAA-2016-0463, where comments are filed)
- Project: 2015-NM-155-AD
- FR document: 2016-03138
- Official PDF: https://openairdocs.org/files/sha256/b0/d2/b0d27259ff744f7102dc174185fd732cc861def6707f01586c984dd10a14e535 (from https://www.govinfo.gov/content/pkg/FR-2016-02-18/pdf/2016-03138.pdf)
- Federal Register: https://www.federalregister.gov/documents/2016/02/18/2016-03138/airworthiness-directives-the-boeing-company-airplanes
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/17C41F6E4AF28C1786257F5D00564A98.0001
- Page: https://openairdocs.org/proposed/FAA-2016-0463

## Summary

We propose to adopt a new airworthiness directive (AD) for all The Boeing Company Model 777 airplanes. This proposed AD was prompted by a report of an incident involving a landing in which the pilots needed to input corrections due to airplane yaw and roll to the right; the main landing gear (MLG) aft trunnion pin was later found to be fractured. This proposed AD would require identification and replacement of certain MLG aft trunnion pins. We are proposing this AD to prevent a fractured MLG aft trunnion pin, which could result in collapse of the MLG and consequent loss of control of the airplane during landing.

## Notices in this docket

- Feb 18, 2016: Notice of proposed rulemaking (NPRM). (first notice), FR document 2016-03138, comments due Apr 4, 2016 (https://www.federalregister.gov/documents/2016/02/18/2016-03138/airworthiness-directives-the-boeing-company-airplanes)

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